Wide-Area Network SOLUTIONS GUIDE
Equipment for Frame Relay, Wireless, Digital, T1, ISDN, Analog, Dial Up, Switched Digital
Solutions for Remote Access, Frame Relay, Multiplexers, Voice/Data, Wireless, T1 Access, Internet, LANs, Terminal Servers, Service
(800)4DCBNET (800)432-2638 http://www.dcbnet.com Data Comm for Business ■ A full line of proven solutions ■ Professional, competent support ■ Reliable, easy to set up, easy to use products ■ Products with helpful diagnostic features ■ The convenience of a single source
Our Customers Say… “Not always is the least expensive solution “Your remarkable knowledge of UNIX and the best, but in this case I was very satisfied asynchronous communications coupled with with the outcome.” your thorough understanding of our network configuration proved invaluable throughout “When I installed them [multiplexers], they the planning process. That the network worked immediately. I had never configured worked properly right out of the chute, ports on a stat mux before and I had absolutely without any testing period, is a tribute to no trouble.” both your attention to detail and the quality of the hardware … It is indeed a pleasure “Russ, I’ve been in this business since 1964 to work with such an outstanding team of and have installed more equipment than I professionals. I look forward to a continuing care to remember. Never before have I expe- successful partnership with DCB.” rienced this level of support and dedication.” “Thanks for the extra effort on your part. “During the problem determination and Without your support in our emergency, resolution process the best technical support our… operation would have been seriously we received was from Rob at DCB customer affected… without you leaving your dinner service.” engagement and providing the spare unit, their [the customer’s] efforts would have “You have a good staff to work with.” been wasted.”
If you borrowed this brochure, call for your own free copy!
Data Comm for Business, Inc. 807 Pioneer email: [email protected] Champaign, IL 61820 web: http://www.dcbnet.com 217.352.3207 800.432.2638 FAX 217.352.0350 INSIDE THIS ISSUE SOLVE DATA Frame Relay Solutions ...... 2 An Overview Point-to-Multipoint COMM PROBLEMS! Point-to-Point Multihost Data Comm Configurations ...... 4 An Overview Multidrop SAVE MONEY! Point-to-Point Hubbing Wireless Solutions ...... 5 FRAME RELAY! Remote Office 10 Mbps Remote Office 1.5Mbps Roving/Portable Users Service, Service, Service… It bears repeating! At DCB, we know you have real life business problems to solve. Data communications has to Multiplexing Solutions ...... 6 be a no-hassle issue. (Remember DCB stands for Data Comm for Business). Point-to-Point We’re committed to providing quality service that you can count on. Our Multi-Drop Single Host customer service is second to none and sets us apart from those “box mover” Multi-Drop Multiple Host companies. Just call us and ask a question. Both pre-sale and post-sales LAN Connectivity Solutions ...... support is not only priceless, its free! 8 Chassis Based Routers Latest Technologies… Frame Relay! Our SRX multiplexer and Sync Routers DSUs take advantage of Frame Relay to solve your multiple site problems Async Routers where conventional multi-drop doesn’t quite fit. Our LAN based product family continues to grow. Our product line has evolved for over 15 years by RS-232 Access Solutions ...... 10 incorporating the latest proven technology. SNMP And Out-of-Band Management Network Management Save Money… Over and over again. Frame Relay is the newest money- ISP or Data Centers saver in the communications world. If your network uses long distance Remote Offices leased circuits, you can probably save money by converting to our SRX line of Frame Relay compatible products. Frame Relay tarrifs are especially Internet Connectivity Solutions ...... 12 helpful on circuits that cross local telephone company boundaries. Frame Internet Connections Relay is a dream come true for organizations with multiple sites. Firewall Wireless Connections… From distances of a few hundred feet to Internet Servers over 20 miles; wireless equipment can now connect your LANs, PCs, or Terminal Server Solutions ...... terminals. DCB wireless modems operate at speeds from 56 Kbps to full 13 UNImux Server 10 Mbps Ethernet. ISDN ...... 13 Voice/Data Integration Solutions ...... 14 Dear Network Users, Voice/Data Integration You will find this network solutions guide valuable. This publication features solutions for frame relay, multiplexing, LAN and Internet T1 Access Multiplexer Solutions ...... 14 connectivity, voice/data solutions and wide area network maintenance. Channel Banks DCB sells business solutions, backed up by products that work and by DCB employees who know we succeed only when the customer succeeds. High Speed Fiber Optic Solutions ..... 15 We invite you to call DCB, where a live person (sometimes even the company president) answers the phone. We offer you personal service that DCB Services ...... 15 starts with your first phone call and continues as we help you evaluate system requirements, work through installation, and help with any Installation Example ...... 16 subsequent support and maintenance. Product Details ...... Take a close look at DCB frame relay solutions. Frame relay provides 18 Frame Relay Voice-Data cost effective networking for point to point, point to multipoint and Digital Service Units Access meshed networks. In many instances, frame relay saves enough on line Multiplexers LAN Routers costs to justify changing from private line analog or digital circuits to a Modems LAN Hubs frame relay network. Terminal Servers Ethernet We have many more solutions in addition to frame relay. Browse Adapters Wireless the catalog and see for yourself. Then give us a call! Find out why so T1 many customers have said “We couldn’t have done this without DCB”.
800.432.2638 1 FRAME RELAY SOLUTIONS
An Overview Frame Relay is the data communications technology many of And second, since it is a mesh type network (truly a switching us have been anticipating. This technology is now offered by fabric instead of dedicated fixed circuits), it’s more reliable. all long distance telephone companies and most local carriers. With these two advantages, Frame Relay makes the price of a Frame Relay brings two major advantages to both the user and network almost independent of the distance between the sites! the telephone company. First, it better utilizes telephone com- This technology also has advantages that really shine with bursty pany equipment and lines so rates are lower than leased lines. traffic such as LAN-to-LAN or terminal communications.
How It Works Your data enters the telco system through a new device, a Frame Relay has another advantage, It’s great for “bursty” Frame Relay Assembler/Disassembler called a FRAD. The traffic.Telephone companies priced it with the ability to carry FRAD formats your data stream for the telco network. It also more data at any given time period than the customer “commits” adds addressing information to the data; and most importantly, to and pays for. That is, they will let you connect at a higher breaks the stream into small packets of data. The telco system speed than the billing rate. You can “over speed” the connection can handle these packets efficiently and at high speed. Although from time-to-time to allow bursts of high speed data traffic. the system is almost error free, all error detection and correction For example, you may have an average throughput of 32 kbps is done by the customer’s equipment, letting the telco trans- with bursts to 56 kbps. You might get a “committed information mission system operate even faster. Since each packet of data rate” (or CIR) of 32 kbps instead of the full 56 kbps. This is has an address attached to it, you can send different packets to especially handy for LAN traffic. Some carriers even let you different locations… multi-drop type operation without the commit to different rates for each direction. If the host site sends pain of multi-drop troubleshooting! large printed reports or database updates to the remotes, and Your data packets are merged with other packets within the remotes only send keystrokes to the host; you can get 56 the telco system and flow through a mesh type network. Since kbps in one direction and only pay for 2.4 kbps in the other. each packet has address information, if any path in the mesh Frame Relay networks are great replacements for old multi- is down or congested, the system can automatically reroute drop networks. Since the telephone company filters packets through another path. This makes reliability much greater for you, troubleshooting is easier than with older multi-drop than the old leased circuits at lower cost. At the destination, circuits. Each site receives only the packets destined for it, not your packets are filtered out of the packet stream and sent all the traffic. Imagine a frame relay network with the host end only to your location. This is the same technology telephone running at 56 kbps and each of 16 sites running at 24 kbps. carriers use in their internal networks. Only now, the cost is Compare that to the older technology multi-drop network low enough for users to take advantage of it. required to support the same system!
DCB’s Frame Relay Solutions DCB, premier manufacturer of statistical multiplexers with Relay while using your existing asynchronous equipment. We built in frame relay technology, also manufactures multi-port also connect LAN’s using both FRAD technology and via any asynchronous FRADs. Our SR FRADs work in both point- port of a multiplexer connected to a Frame Relay network. If to-point and point-to-multipoint Frame Relay networks. it’s long distance, Frame Relay can probably save you money! These FRAD products allow you to take advantage of Frame
2 800.432.2638 PCs or terminals
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800.432.2638 3 DATA COMM CONFIGURATIONS An Overview There are several alternatives for wide area network configura- configuration is recurring line costs. In as little as 6 months in tions. Each has its advantages and limitations. Since all of DCB’s some cases, recurring line costs become the most expensive products exceed your performance and reliability expectations, portion of a wide area network. Different configurations may the overriding consideration in selecting a wide area network be used to save money on recurring line costs.
Point-to-Point Remote Point-to-Point is the simplest wide area network configuration. TELCO Office Each remote office is connected to the host site with its own Services line. This network configuration is the simplest to maintain but, it is usually the most expensive in recurring line costs. When- ever recurring line costs are equivalent between the different One Local and configurations (which is very unusual), the simplest network One Remote Office configuration should be used to simplify network management.
Remote Multidrop Headquarters Office Remote In a Multidrop configuration, several remote locations are con- Office nected to a single host location over the same communications channel. Each remote location can communicate to the host Remote Office location, and the host location communicates with all of the remote locations. The host equipment broadcasts messages to all remote locations and must “address” the message to identify the intended remote location. Since the remote locations must TELCO “share” the communications channel back to the host, Services remote equipment can only respond when the host has “addressed” it. This line control is done by the communications equipment. Usually, Multidrop equipment is more expensive than Point-to-Point One Local and equipment, but the extra cost is more than offset Multiple Remote Offices by the recurring line cost savings.
Hubbing Headquarters The Hubbing configuration is used when multiple remote sites are close together. It is much less costly in recurring line costs to have several short lines feed into one remote site and all share a single long line to the host site. In a Remote Hubbing configuration, special TELCO Office Services equipment is needed to TELCO combine the multiple data Services streams onto the single data channel and to separate them at the other end of the line. The additional cost One Local and Several Remote Offices Remote of the Hubbing When Remote Offices Are Near Each Other Office equipment is offset by the recurring line cost savings. Headquarters 4 800.432.2638 PCs WIRELESS SOLUTIONS
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Ethernet Router Remote LAN Wireless WAN BR-E Router WIRELESS LAN-TO-LAN Connect the remote office LAN with a microwave link RF Unit running at full ethernet speed. It s easier than you think and is like having the actual ethernet cable extended Ethernet speed 10 Mbps to the remote office. Full 10 Mbps ethernet license-free units are available on the Terminals new 24 Ghz band. We also have slower options for connecting RF Unit
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RF Unit Main Office Up to 128 Kbps WIRELESS TERMINAL CONNECTIONS Connect remote terminals to the host computer with wireless modems. Distance is no longer a barrier to good terminal performance. Replace leased telephone lines with our radio links for multiplexers or termi- HUB RF Unit
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CONDITION POWER Up to 1.544 Mbps. Models use license free Mux 1.5 Mbps spread spectrum at 900 MHz and 2.4 GHz or licensed bands at 23 GHz. Host Computer
Router/ Wireless LAN RF Unit People on the move can have real LAN access from portable computers, forklifts, LAN tractors and trucks on your campus or farm. You won t be wired to one desk or even one office. Ideal for shared desk and shared office locations. Host or Server
MODEL RANGE MAXIMUM SPEED FREQUENCY LICENSED ANTENNA NVK 12 miles, LOS 9.6 to 64 Kbps Sync, 38.4 Kbps Async 900 MHz No Yagi NVK 12 miles, LOS 9.6 to 64 Kbps Sync, 38.4 Kbps Async 2.4 GHz No Yagi 875 3 miles, LOS T1 (LAN interface) 2.4 GHz No Yagi 875 3 miles, LOS 10 Mbps or T1 * 23 GHz Yes 9" Dish 950 10 miles, LOS 10 Mbps and T1 * or 20 Mbps * 23 GHz Yes 2’ Dish 950 Over 10 miles ** 10 Mbps and T1 * or Multiple (4) T1 * 23 GHz Yes 4’ Dish 990 1/2 mile, LOS 10 Mbps Ethernet 24 GHz No 2’ Dish 890 1000’, LOS 10 Mbps Ethernet 24 GHz No 9" Dish R-L 3 miles, LOS T1 2.4 GHz No Yagi Sierra 2 miles, LOS 10 Mbps * 31 GHz Yes 9" Dish BL121 2 to 20 miles, LOS 56 Kbps to T1 2.4 GHz No 2’ Dish DGR115 to 20 miles, LOS 1.2 to 115 Kbps Async 900 MHz No Yagi LOS: Line of sight * Models available with video capability. ** Path engineering may verify even longer ranges. Cut out the middleman (eliminate monthly telephone bills) Payback times for wireless connections are often less than one year. Radio modems connecting two locations five or six miles apart usually cost less than $3,500. That link runs at 64 Kbps, plenty fast enough for most LAN-to-LAN router applications. Blazingly fast for terminal connections. No hassle installation is less than a day. Many of our radio modems use spread-spectrum technology with no license needed.
800.432.2638 5 MULTIPLEXING SOLUTIONS
Statistical Multiplexing: An Overview Statistical multiplexers make it possible for multiple PCs or are idle a large part of each second with no one typing and no terminals to share a single data line. They also perform error data being sent from the computer, each PC or terminal often correction to insure error-free transmissions. The term “statis- averages less than 5% of its potential data rate. Statistical mul- tical” refers to their ability to take advantage of the intermittent tiplexers allow the sum of the PC and terminal rates to exceed usage statistics of all PC and terminal users. Because keyboards the composite link speed between the multiplexers.
WITHOUT STATISTICAL MULTIPLEXING WITH STATISTICAL MULTIPLEXING Multiple PCs or terminals Up to 32 PCs or terminals on one line
Modems Multiple, expensive data lines
Modems All on one line! Mux
Modem or DSU Link speeds to 64 Kbps DCB Muxes correct all link errors Modem or DSU Mux
Host or Server Host or Server Network management built into every DCB multiplexer
DCB Statistical Multiplexers DCB offers a wide range of products to deliver top performance Lower recurring network costs — Save money in any size network — from a single remote site to those sup- with the networking option (point-to-point, hubbing or porting hundreds of remote terminals. To help you save on multipoint) that offers the greatest savings in your situation. network line costs, DCB’s statistical multiplexers are available Easy installation — The design simplicity of DCB’s in all networking options — point-to-point, multi-point, and statistical multiplexers makes them easy to install, use and hubbing. With multiple choices of technology, long distance maintain. carriers and telephone rates that vary by location, these prod- High performance — DCB products are engineered ucts offer you a variety of options so you can design the most with the newest, most powerful data communications and cost-effective network for your money. We’ll even help you compression technologies. design the system! Application assistance is free, large project Network control — DCB’s remote network management consulting is available. tools give you complete control of your local and remote sites. If you have more than one terminal at a remote location, Comprehensive network support — Extensive you can increase performance, reliability and save money with features for support and network diagnostics. DCB statistical multiplexers.
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800.432.2638 7 LAN CONNECTIVITY SOLUTIONS
Remote LAN Connections: An Overview As soon as people become accustomed to the convenience and this filtering function is a router. Remote routers have at least potential of LAN based PCs and workstations, they see the one LAN connection and one WAN connection. They deter- advantages of connecting all remote office LANs together. mine what information is addressed to the remote LAN and Novell, Microsoft and Apple products have now matured forward it there. The router also performs a security function enough to make networking both affordable and easy enough by hiding all other information on the LAN and preventing for every organization to use. In fact, your organization is outside users from getting into the local LAN. If you’re con- probably missing out on major productivity gains if you nected to the Internet, a router is the unit between your LAN aren’t using this technology. and the Internet. Most routers attach to the telephone company In their simplest form, remote LAN interconnections use wires through a DSU (Data Service Unit). Many office workers a device that routes the proper information between different now bring computer work home at night. With “remote node” locations without sending all the local information over the and “remote control” software and hardware, your portable or wide area network (WAN). Since local LANs typically run home computer can be connected to the office LAN when at 10 million bits per second (bps), all that local information you’re away. Each method has limitations and advantages. would be too much data to send on a slower speed WAN that You can even use a cellular phone modem to access the LAN is typically 56 thousand bps or slower. The device that performs from your car.
DCB LAN Connectivity Solutions DCB LAN products include remote routers sized for all orga- DCB can help you connect remote LANs or provide the nizations from the smallest with only two locations all the way assistance you need to access the global Internet. up to large organizations with multiple locations and the need DCB offers dial-up and dial-on-demand routers to connect for high-speed lines. We also supply those hard-to-find items the remote office that needs occasional access to the headquar- such as Category 5 cables tested at 100 Megabit rates, trans- ters LAN. Using our dial-up router lets your home or portable ceivers, workgroup hubs, network interface cards, and other PC act as a remote node or unit on your office LAN. This wiring hardware. We are Sun Microsystems authorized to equipment is straight forward to setup and easy to operate. provide the popular Netra Internet server.
One DCB Unique Solution Another unique DCB connectivity solution involves routing speed dedicated phone line or pay additional long distance LAN information through our statistical multiplexers. In many rates for this connection. If you’re already supporting remote situations, LAN interconnections are needed only for electronic terminal users with a DCB multiplexer, we can supply a mail and casual file transfer. You don’t have to install a high remote router that works through your existing multiplexer.
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TELCO UNIQUE SOLUTION Running Light LAN Traffic Through DCB Multiplexer
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800.432.2638 9 RS-232 ACCESS SOLUTIONS
The DCB Access Switch allows a local or remote terminal to usually connected to a local terminal (or PC). The other port easily connect to multiple RS-232 devices. It is commonly is left connected to a modem for remote access. Both ports can used for management or configuration ports on all kinds of be active at the same time if they are accessing different output equipment such as servers, routers, hubs, UPSs, channel (controlled) ports. Access Switches provide a way for remote banks, transmitters, multiplexers, dial-in servers, voice-mail, technicians to diagnose and reconfigure equipment without ATMs, and PBX systems. All DCB Access Switch models the expense of on-site visits. support at least two input (or controlling) ports. One port is
Features and Benefits of the DCB Access Switch
FEATURE BENEFIT 4 to 152 Ports Scaleable Password Protection Security & Confidentiality Two or More Input (Controlling) Ports Local And Remote Access English Language Commands Easier to Use Replaceable Software Cartridge Future-Proof RJ45 RS-232 Ports Compact, Economical Remote Control via Modem Eliminates On-site Visits Control Many Ports, Machines Save Phone Line Costs
Network Management and the DCB Access Switch
Most of your network cost starts the day after the network is Multiplexer installed. Along with circuit charges, network management and maintenance make up over 80% of your total network UPS cost. You can minimize these costs by planning for network maintenance and troubleshooting when you design the system. T1 Mux
Polarity Our Access Switch lets you access the management port on all WAN Router 10 9 Ethernet 8 7 Link 6 5 4 3 2 network equipment for troubleshooting and configuration… 1 Router either locally or remotely. Within the limits of your security, BR-AS DSU our technician can even dial into the system remotely while you’re accessing it with a local terminal. The DCB Access Switch connects two to six workstations (local or remote) to as many as 152 RS-232 devices. These are usually the management ports of DSU’s, modems, multiplexers, and routers. You no longer need a tangle of Any RS-232 patch cables and hours to troubleshoot your network. Access Devices Switch Most DCB equipment has built-in diagnostics and troubleshooting/training features, Local PC, Modem Terminal Server Port, so using the Access Switch to capture or Terminal a remote port or troubleshoot a phone line saves hours of down time. Manage multiple devices Connect as many as 152
Modem either locally or remotely different managed devices at the same time. with up to 6 management workstations or modems. Remote PC or Terminal 10 800.432.2638 SNMP And Out-of-Band Management
SNMP is by far the most popular management method for MODEL INPUTS OUTPUTS LAN-based equipment. It offers great functionality, low cost, AS-04 2 4 and it’s easy to learn. Every medium to large LAN/WAN can AS-08 2 8 benefit from SNMP management. But, SNMP has one major AS-16 2 16 problem that is easily solved with the DCB Access Switch. AS-24 2 24 When the system goes down, there is no SNMP management AS-32 2 32 available! An out-of-band management method is also needed. AS-24M 6 24 The DCB Access Switch provides this out-of-band manage- AS-32S – 32 ment by using the RS-232 management/configuration ports RPC-01 1 AC found on all managed equipment. By using a modem on one of the Access Switch input ports, there is a remote diagnosis and configuration path to all your equipment. AC power con- and software, it is frequently used to supplement it. If you are trol options allow remote rebooting and power cycle of hung using SNMP, ask yourself... “When the WAN goes down, how equipment. Although the Access Switch sometimes takes the do I reach out and touch the remote equipment?” The DCB place of more complicated SNMP management workstations Access Switch is the answer.
The DCB Access Switch and ISP or Data Centers Many of our Access Switches end up buried in large equipment racks along with dial-in modem racks, ISP remote offices, PBX Polarity Router WAN
9 10 Ethernet 8 7 Link 6 5 4 3 2 systems, and server farms. An example of this type of installa- 1 Router DSU tion would be an ISP remote office containing several Internet BR-AS servers, twenty or more dial-in modems, multi-port routers, and Modems a T1 channel bank or two. Another common example would be Access Switch a data center with five or ten dial-in modems for a mainframe
Polarity WAN Router 10 system, along with DDS and frame relay lines to remote offices. Ethernet 9 8 7 Link 6 5 4 3 2 1
Responding to client calls or SNMP traps, network management Router BR-AS Server technicians access LAN switching equipment, WAN terminal UPS equipment, and the equipment at remote offices without leaving the desk. This translates to more up-time and lower support costs. Novell 19” Rack Server
Ethernet The DCB Access Switch in UPS Hub
Polarity Remote Offices WAN Router 10 9 Ethernet 8 7 Link 6 5 4 3 2 1
The Access Switch is an ideal addition to small remote Router office LAN systems. By enabling remote access to all BR-AS LAN equipment (such as file server, hub, DSU, and router), on-site visits for reconfiguration and problem FT1 diagnosis are minimized. This example system supports AC Power DSU a small office of about 12 employees that is connected to Control the corporate office with a 56 Kbps DDS line. Remote Access Switch Connect as many as 152 access to the Novell file server is with RCONSOLE. different managed devices Wiring problems are diagnosed by connecting to Modem with up to 6 management the intelligent hub. WAN problems are solved workstations or modems. by connecting to the DSU or router. By adding an AC power control module, the server can even be power-cycled if it hangs. Modem
Manage multiple Remote PC devices remotely. or Terminal 800.432.2638 11 INTERNET CONNECTIVITY SOLUTIONS
Internet Overview Whether it’s for technical research, electronic mail, education, way for non-technical people to use the Internet. You can even or opening a new market area, the global Internet is one resource set up shop marketing your services and products on the Internet. you must consider. Companies, schools, and individuals world- You “get connected” by selecting the proper mix of software, wide are finding that they can conduct business better, faster, services and hardware for your unique situation. The hardware and easier by using the Internet. Unlike popular belief, the may include any combinaton of a router, modem, DSU, firewall, Internet is not a single huge network, it’s a well connected server, workstation, or simply a PC. You may already have a group of many networks that agree to abide by common rules. LAN; it can be connected to allow access to the Internet for Internet connections can be as simple as a terminal and modem your whole office. The most common services are provided at your site used to access a “shell” account on your Internet by either an Internet Service Provider (ISP) or Commercial Service Provider (ISP); or as complex as a complete, secure Information Service (such as America On Line or Compuserve). system that allows every PC on your network to have access to They may go by names such as ftp, telnet, www, archie, gopher, the World Wide Web. The World Wide Web is today’s easiest netnews, usenet, shell accounts, or the web.
DCB Internet Solutions As your full service data communications provider, DCB will help you connect to the Internet with minimum trouble. We can assist you in selecting the proper combination of hardware, software, and services for your unique needs. DCB’s line of router equipment is ideal for connecting your LAN to the Internet. We can provide a router or security firewall; then assist you in selecting the proper ISP or Commercial Information Service. As a Sun authorized Netra dealer, To Your Internet we can help you set up to sell your products or services Service Provider on the Internet. Take advantage of our experience using Frame Relay, ISDN, and other technology DSU/CSU options to save time and money.
Internet Firewall Router
Internet Server ¥ E-mail Server ¥ File Transfer ¥ World Wide Web Router ¥ Net News To Your LAN Users
you’re just starting out and wondering if Internet access would be beneficial to your organization, we suggest you try one Ifof the online commercial information services such as Compuserve Information Service or America On Line. These are much easier to navigate than the Internet, yet have many of the same advantages of electronic mail, discussion groups, and information availability. You need only a PC and modem to access these services. If you feel the need to jump into the Internet and have only a PC to work with, several Internet Service Providers now offer user friendly and inexpensive packages. Call our Tech Support group for free advice!
12 800.432.2638 TERMINAL SERVER SOLUTIONS
UNImux UNIMUX IS A REMOTE MULTIPLEXER TERMINAL SERVER FOR THE IBM RS-6000 UNIX PLATFORM. The UNImux saves wiring, host slots and space. It combines slots because up to 7 UNImuxes can be connected to a single the async port I/O and multiplexer functions in a single piece SCSI adapter. UNImux saves space because one piece of of equipment. The UNImux is connected to the Host via SCSI equipment takes the place of several. and up to 7 UNImuxes can be connected to a single SCSI adapter. UNImux can be used in Point-to-Point applications The UNImux saves wiring by eliminating the need for and options are available for Multi-Point and Frame Relay host I/O devices and cabling to Multiplexers. It saves host configurations. PCs or Terminals PCs or Terminals
SR Mux
SR Mux PCs or DSU Terminals
Modem or DSU TELCO, DDS, Frame Relay
SR Mux
Modem DSU or DSU
UNImux SCSI
IBM RS-6000
ISDN Most DCB multiplexers, access switches, and routers are service is commonly available. Your phone company can pro- compatible with ISDN (Integrated Services, Digital Network), vide cost details. ISDN can be complex to obtain since there one of the latest offerings from your telephone company. The are many conflicting options that must be specified. DCB most common ISDN service, the basic rate (BRI), provides two support can assist you in ordering your ISDN connections. 64 Kbps channels or one 128Kbps channel for data connections. Our “One-Touch” multiplexer system works well with This is a switched service similar to your standard telephone ISDN. In a “One-Touch” system, simply pressing the space instead of a full-time dedicated connection. Normally, an ISDN bar or return key on a remote terminal or PC causes the system connection device (Terminal Adapter or TA) dials the number to automatically connect to the host computer. After a preset of the unit you want to connect to... and disconnects when not period of inactivity, the link is broken. When using ISDN, in use. Unfortunately, in most areas this service is metered… “One-Touch” will make a connection in about a second, you pay by the minute for each minute you are connected. In instead of the normal 30-60 seconds required for a modem other areas, flat rate service is offered and Centrex (non-metered) connection.
800.432.2638 13 VOICE/DATA INTEGRATION SOLUTIONS
19.2 or Phone, PBX or Key System Voice/Data Integration 38.4 Kbps 2 wire or 4 wire The DV-1D allows voice and data to share a single 56 Kbps data FXS, FXO or E&M line. One voice channel for a telephone, PBX or Key System can share the line with a data channel for multiplexers, LAN traffic or other data application. If your needs are for more voice or data channels, DCB also has those solutions available. 16 or 32 Kbps DV-1D Voice
56 Kbps Link
19.2 or 38.4 Kbps
DV-1D
16 or 32 Kbps Voice
Phone, PBX or Key System 2 wire or 4 wire FXS, FXO or E&M
T1 ACCESS MULTIPLEXER SOLUTIONS
Remote Channel Banks Offices When you have multiple data and voice lines, Fractional T1 many times you can save recurring costs by combining those lines into a high speed T1 line. DCB offers equipment for combining Voice all your different communications needs into a T1 line. TELCO Network 56 Kbps
1.544 Mbps
Up to 24 Channels of: ¥ Voice ¥ Video (up to 24 channels) ¥ LAN Routers/Bridges
14 800.432.2638 HIGH SPEED FIBER OPTIC SOLUTIONS Now you can consolidate all your data and voice transport re- The system supports quirements onto one pair of fiber optic cables. With SONET/ an unlimited MUXLAN number of nodes MUXLAN, one pair of fiber carries ethernet, T1 channels, analog phone channels, RS-232/485/422 data, and video up to 40 Km. By running this backbone at OC-1 speeds, you can use 850 nm or 1300 nm fiber, any common connector, and the advantage of counter-rotating SONET type loops without the Sonet / OC-1 MUXLAN OC-3 cost. Many buildings and campus environments have installed fiber optic cables that carry only one 10 Mbps ethernet channel per cable pair. We can increase this to 51.84 Mbps SONET MUXLAN OC-1 speeds and economically add additional ethernet or other Analog Phones FXS/FXO data, voice, or video channels without replacing the cable. There are over 40 protocols and interfaces to choose from. T1 Channel Bank 1 Pair of Fiber Cables
Up to 40 Km at OC-1 speed MUXLAN Video
RS-232/485/422 MUXLAN Devices
Point-to-Point Ethernet SONET / OC-1 MUXLAN System Backbone MUXLAN System DCB SERVICES Although you always get free DCB SuperService Support expenses by investing a little more up front in planning, training, with all DCB products, we have additional services that may and installation. You can also lease DCB equipment or rent it interest you. We can often help you save long term project for the short-term.
Consulting and Planning In addition to the free SuperService Support assistance, our major mainframe and mini computers. We consult on band- experts can help plan and implement your major data com- width requirements, WAN architecture decisions, voice/data munications projects. Expertise is available in all wide area integration, wireless networking, economic and technical networking technologies. We’ve worked with most popular analysis. We can manage the entire project or just supply the systems such as UNIX from IBM, HP, and Sun; and LANs technical expertise needed to help you make the best decisions. using Netware and Lantastic. We’ve connected WANs to all These services are available on an hourly fee or bid basis.
Installation and Product Training Our technicians can install DCB products at your local and your local supplier. We also provide training for your technical remote sites. We implement entire projects from the wiring to (and non-technical) people. Proper training helps minimize on- the turn-on or just install DCB products as a subcontractor to going network expenses and maximize reliability and uptime.
800.432.2638 15 INSTALLATION EXAMPLE
Category 5 Solid Host End copper Local Devices 4-pair in-house Line cord wiring
Patch panel Line cord
Host, concentrator or terminal server CPU cables
SR Multiplexer
TELCO
DSU or modem
Wiring Notes and Recommendations ■ Save labor and increase reliability with easy-to-use wiring devices. ■ If possible, wiring modifications should be made only in modular adapters. ■ For best performance, limit the number of wiring transitions. ■ DCB cables are color-coded for easy identification. ■ We recommend using all Category 5 wiring. ■ Label all lines, and keep the labels up-to-date. ■ Wiring within walls should be straight through and conform to EIA/TIA 568 specifications. ■ Maintain thorough system documentation.
16 800.432.2638 SR Multiplexer Remote End
DSU or modem
Line cords
Distribution box
Category 5 Line cord solid copper Terminal 4-pair in-house wiring
Line cord Wall plate PC
Line cord
Printer
800.432.2638 17 Frame Relay SRX Multiplexer — Multipoint Host SR Multiplexer — Point-to-Point
■ Frame Relay Host The DCB SRX Frame Relay ■ Point-to-Point Frame The DCB SR Frame Relay ■ Ports to 38,400 bps Host Multiplexer concentrates Relay Multiplexer concentrates 4, 8, ■ Composite to 128 Kbps 8, 16, 24 or 32 async ports to ■ Ports to 38,400 bps 16, 24 or 32 async ports to a ■ Network Management Port a point-to-multipoint Frame ■ Composite to 128 Kbps single point-to-point Frame Relay link with up to 16 remote ■ Network Management Port Relay link. Ports use RJ-45 SR multiplexers. Ports use connectors. RJ-45 connectors.
SR Multiplexer — Multipoint Remote MSU-4D — Multihost Sharing Unit
■ Frame Relay Remote The DCB SR Frame Relay ■ 4 port multihost sharing The Bicom MSU-4D allows ■ Ports to 38,400 bps Remote Multiplexer is 4, 8, 16, ■ Used in multihost multiple SRX Host Multiplexers ■ Composite to 128 Kbps 24 or 32 ports. The SR is used applications to share a single Frame Relay ■ Network Management Port at remote sites on a point-to- ■ Speeds to 128 Kbps link. It can also be used at multipoint Frame Relay link. remote sites for multiple SR Ports use RJ-45 connectors. Multiplexers.
Digital Service Units DL-DSU/CSU DL-56
■ Network Management Port The DCB DL DSU/CSU is ■ 56 Kbps The DCB DL-56 DSU/CSU ■ LCD front panel for setup a cost-effective DSU/CSU for ■ Point-to-point is a 56 Kbps only DSU/CSU and diagnostics 56, 19.2 and 9.6 Kbps digital ■ Multi-point without network management. ■ Point-to-point or multi- facilities. It will operate either ■ Line Driver Mode For simple, low cost applications, point point-to-point or multi-point. ■ Async Version the DL-56 is the DSU/CSU of The DL DSU/CSU can also be choice. Also available in an RS- used in line driver mode over 232 only and async version. customer-owned cable. 18 800.432.2638 Frame Relay FR-02 FR-P01
■ Composite to 128 Kbps The DCB FR-02 is an eco- ■ Composite to 768 Kbps The DCB FR-P01 serial port ■ 2 sync HDLC or async ports nomical 2 port Frame Relay ■ Async or sync port supports SDLC, Burroughs ■ LCD display and keypad Access Device (FRAD) for ■ Network Management Port poll-select, bit sync and other ■ RS-232 or V.35 light traffic applications. A ■ Multiple Sync Protocols protocols. A second serial port front panel LCD display and is used for configuration and keypad are used for configura- status monitoring. tion and status monitoring.
FR-04 FR-P04
■ Composite to 128 Kbps The DCB FR-04 is an econo- ■ Composite to 768 Kbps The DCB FR-P04 serial ports ■ 4 sync HDLC or async mical 4 port FRAD for light ■ 4 async or sync ports support SDLC, Burroughs ports traffic applications. A front ■ Network Management Port poll-select, bit sync and other ■ LCD display and keypad panel LCD display and keypad ■ Multiple Sync Protocols protocols. A serial port is used ■ RS-232 or V.35 are used for configuration and for configuration and status status monitoring. monitoring.
FR-E FR-E03
■ Composite to T1 The DCB FR-E is an ethernet ■ Composite to T1 The DCB FR-E03 is an ether- ■ 1 ethernet port attached FRAD with built in ■ 1 ethernet port net attached FRAD with rout- ■ Network Management Port routing functions. IPX routing ■ 3 async or sync ports ing functions and 3 serial ports. ■ IP and IPX supported is dynamic. IP routing is static. ■ Multiple protocols Routing of IPX is dynamic and IP is static. SDLC, Burroughs poll-select, bit sync and other protocols are supported.
800.432.2638 19 Multiplexers MULT IDROP POINT -TO-POINT SRX Multiplexer — Multidrop Host SR Multiplexer
■ Multidrop Host The DCB SRX Multidrop ■ Point-to-Point The DCB SR Multiplexer ■ Ports to 38,400 bps Host Multiplexer concentrates ■ Ports to 38,400 bps concentrates 4, 8, 16, 24 or 32 ■ Composite to 128 Kbps 8, 16, 24 or 32 async ports on a ■ Composite to 128 Kbps async ports on a point-to-point ■ Network Management Port multidrop link with up to 32 ■ Network Management Port link. The composite is synchro- remote SPL multiplexers. Ports nous. Ports use RJ-45 connectors. use RJ-45 connectors.
SPL Multiplexer — Multidrop Remote SPL Multiplexer
■ Multidrop Remote The DCB SPL Multidrop ■ Point-to-point The DCB SPL Multiplexer is ■ Ports to 19,200 bps Remote Multiplexer is 2, 4, ■ Async or sync composite available in 2, 4, 6, 8, 10, 12 or ■ Composite to 64 Kbps 6, 8, 10, 12 or 14 ports. The ■ Dial-up or leased line 14 ports. It can be used on ■ Network Management Port SPL is used at remote sites ■ Network Management Port leased analog or digital lines or on a multidrop link. Ports with dial-up modems.“AT” use DB-25 connectors. dialing commands are entered at the attached terminal. Modems Interface LL Modem RS-232 to V.35 Interface Converter
■ V.33 and V.29 compatible The LL 14.4 modem operates ■ Easy to install The DCB VRC-1 is an RS-232 ■ LCD display at 14,400 bps or 9600 bps syn- ■ Speeds to 192 Kbps to V.35 interface converter, ■ Sync or async chronous or asynchronous. It ■ DB-25 RS-232 connector, ideal for use with the DCB SR ■ Rack mounts in DCB MR-8 uses 4-wire unconditioned M34 connector for V.35 and SPL series multiplexers. ■ Network Management Port leased lines. The DCB PL ■ No switches to set Other equipment that may be 19.2 modem is available for ■ Connects RS-232 DTE to converted includes terminals, analog 4-wire leased lines. V.35 DCE personal computers, bridges, routers, work stations, etc. 20 800.432.2638 Terminal Servers T1
UNImux TM-24
■ SCSI attached multiplexer The DCB UNImux attaches to ■ Common power and logic The DCB TM-24 T1 Multi- ■ Up to 32 channels a UNIX host via SCSI. Call redundancy plexer is full featured and versa- ■ Point-to-point or multi-point DCB about driver availability ■ Drop and insert tile. It can be configured as 2 ■ Frame Relay for your UNIX operating sys- ■ Multiple voice card options T1 muxes in a single 7” high ■ Network Management Port tem version. UNImux combines ■ Analog or digital data cards chassis. system I/O, multiplexing and, ■ Fractional T1 cards in Frame Relay applications, the FRAD all in one box. 1016 FT-DSU/CSU
■ UNIX systems I/O ■ SCSI attached ■ 16 terminal/printer ports ■ Up to seven 1016s on a single SCSI adapter
The DCB 1016 is a SCSI atached I/O for UNIX systems. SCSI attached means less system overhead for terminal I/O. Call DCB about driver availability for your UNIX operating system version. ■ Fractional T1 or T1 The DCB FT-DSU/CSU is a DSU/CSU fractional T1, T1 DSU/CSU ■ 1, 2, or 4 ports with optional drop and insert ■ Optional drop/insert, SNMP interface. Voice/Data Access DV-1D Access Switch
■ Voice/data DSU/CSU The DCB DV-1D is a 56/64 ■ 4 to 152 ports The DCB Access Switch is an ■ 16 or 32 Kbps voice Kbps DSU/CSU with one voice ■ 2 or 6 control ports ASCII character controlled ■ 9.6, 19.2 or 38.4 Kbps data and one data channel. A tele- ■ Used to access network switcher used to connect control ■ RS-232 and V.35 interface phone, key system or PBX can management ports devices to 4 to 152 async net- ■ Dynamic bandwith be used on the voice channel. work management ports. allocation The data channel is sync or async.
800.432.2638 21 LAN Routers BR-AS01 BR-SXT01
■ 1 WAN port to 128 Kbps The DCB BR-AS01 is an inex- ■ WAN port to 2 Mpbs Sync The DCB BR-SXT01 is a 1 WAN ■ Async or Sync pensive full featured router. The ■ WAN port to 256 Kbps port router with a secondary WAN ■ AUI, BNC and 10BaseT multiprotocol version routes sync or async port. The secondary WAN port connectors TCP/IP, IPX, Appletalk and ■ AUI, BNC and 10BaseT can be used for automatic switch- ■ PPP and Frame Relay DECnet. The IP version is connectors over and dial-on-demand in case ■ SNMP, Telnet or Async perfect for connection to the ■ PPP and Frame Relay of primary link failure. The multi- Management Internet, and includes packet ■ SNMP, Telnet or Async protocol version routes TCP/IP, ■ TCP/IP or Multiprotocol filtering. Management IPX, AppleTalk and DECnet. versions ■ TCP/IP or Multiprotocol versions
BR-AS12 ES-06 Ethernet Switch
■ 12 WAN ports to 256Kbps The DCB BR-AS12 is a 12 ■ Sx 10/100 Mbps Ports Switching hub with six full each WAN port router. Individual ■ 148,800 PPS in 100 Megabit duplex 10 or 100 Megabit ports. ■ Async or Sync ports can be configured for auto- Mode Each port is auto-negotiated ■ AUI, BNC and 10BaseT matic switchover if a primary ■ 14,880 PPS in 10 Megabit for 10 or 100 Mbps to add the connectors link fails. It can support up to Mode advantages of ethernet switching ■ PPP and Frame Relay 64 Frame Relay DLCIs. The ■ Non-blocking, Crossbar to your LAN. ■ SNMP, Telnet or Async multiprotocol version routes Switching Management TCP/IP, IPX, AppleTalk and ■ TCP/IP or Multiprotocol DECnet. versions LAN Hubs Ethernet Adapters EH-08, 12, 16 or 24 EA
■ Small size – 1” high The DCB EH ethernet hubs ■ ISA and PCI versions The DCB EA Ethernet Adapters ■ Auto partitioning are small in size but big in per- ■ BNC, UTP and AUI are available in a wide variety to ■ Low power consumption formance. UTP port connectors combinations meet your exact needs. There ■ Individual port LEDs with BNC/AUI network con- ■ 10 Mbps and 100 Mbps are ISA and PCI versions with nectors. These hubs won’t take versions BNC and UTP or BNC, UTP up much room or much of your ■ NE-2000 compatible and AUI connectors. budget.
22 800.432.2638 Wireless WAN Gina Series Radio Modem Proxim Range Link
■ Speeds to 64 Kbps Sync, 38.4 This radio modem supports re- ■ Up to 3 miles line of sight The Proxim Range Link uses Kbps Async mote terminals, multiplexers and ■ T-1 speed spread spectrum radio technology ■ Point-to-Point or MultiPoint LAN routers with a line of sight ■ 10BaseT, 10Base2 for secure and reliable wireless ■ 2.4 Ghz or 900 Mhz models range up to 12 miles. Quick set- ■ No FCC license required communications for up to 3 miles, ■ License-Free Spread- up, license free replacement for line of sight. The Range Link Spectrum leased data circuits. Repeater can pay for itself in communica- ■ FCC and DOC approved operation allows longer distance. tion line savings very quickly. SW 890/990 SW 23 GHz Microwave Link Unlicensed Microwave 10Mbps
■ Speeds to 10 Mbps & T1 The 23 GHz microwave links operate ■ Full Ethernet Speed You can now get full ethernet ■ Models with up to 4 T1s from 100 ft to 10 miles using 9", 2' or ■ Unlicensed speed on an unlicensed system. ■ Easy installation and 4' dish antennae. Connect two LANs ■ 890 Range is 1000’ (9” dish) The 890/990 are easy to install maintenance and PBX systems with full duplex 20 ■ 990 Range is 1/2 Mile with no tuning and operate in ■ 10 mile typical range Mbps plus T1, or use the single T1 (2’ dish) congested areas to provide an ■ Licensed 23 GHz frequency model. Works with routers, bridges, ■ 24 Ghz Microwave economical alternative to full hubs or 4-wire T1 interfaces. licensed microwave. Wireless LAN Proxim Range LAN/Access Point Proxim Range LAN 2 ■ Up to 500 ft in offices ■ Up to 1000 ft in open space ■ 10BaseT, 10Base2 ■ 1.6 Mbps per channel
The Range LAN/Access Point is a wireless local bridge for ethernet net- works. Users can roam ■ Wireless connection to The Range LAN 2 PCMCIA from one access point to Range LAN/Access Point and ISA adapters allow portable another without losing ■ PCMCIA Type II Slot and desktop computers LAN their network connection. ■ ISA bus connectivity without wiring ■ Low power problems.
800.432.2638 23 CABLE AND WIRING HARDWARE
■ LINE CORDS ■ SURGE PROTECTORS ■ VRC-1 Category 5 line cords are now recom- Help prevent lightning and power RS-232 to V.35 AC powered inter- mended for all applications. Wired transient damage to RS-232 equip- face converter. straight thru RJ-45. Color-coded ment. DB-25, RJ-45 cables “neaten up” your wiring and make troubleshooting easier. Special transition cables are used for some applications. RJ-45: 2', 7', 14', 25', Bulk Available in colors: Black, Red, Blue Green, Yellow and Gray ■ ADAPTERS BNC: 2', 7', 14', 25', Bulk Used for transition from DB-25 or ■ T-EXTENDER ST (fiber): 2', 7', 14', 25', Bulk DE-9 connectors to RJ-45 cables. We 6000 foot T-1 line repeater. also carry gender changers and LAN cable hardware.
■ SPECIALTY CABLES We create cables with special pinouts, connectors and lengths for your 19" specific equipment.
■ RELAY RACK ■ IN-HOUSE WIRING Recommended for rack mounting EQUIPMENT multiplexers, modems, DSUs, Patch panels, RJ-45 jacks (both single patch panels, terminal servers, and multiple), cable ties and distribu- routers, etc. at the host end. Stable tion boxes. 19" by 72" high rack.
■ WE ALSO CARRY… • Modem eliminators to 16 Mbps ■ IN-HOUSE WIRING CABLE • Line drivers Solid, UTP, 4-pair Category 5 copper • Rack chassis, shelves for all in-house Multiplexer and • Custom cables, adapters 10BaseT wiring. Fiber or 10Base2 is • Tools and test equipment commonly used for backbones. Use ■ LAN TRANSCEIVERS • A/B switches Fiber to run LANs between buildings. Connect between the AUI port on • LAN accessories All are available in bulk lengths. LAN devices and the LAN cable. 10BaseT – RJ-45 10Base2 – BNC 10BaseF – Fiber ST 24 800.432.2638 Installing a wireless link between two LAN locations using license-free spread spectrum radio modems from DCB. Server Distances of 12 miles or more are available PC using license-free or licensed radio modems. PC Use our microwave equipment for greater range. PC Radio Link PC
Polarity
WAN
9 10 Ethernet 8 7 Link 6 5 4 3 2 1
Router PC BR-AS BR-ASX-01 Server Main Ethernet LAN Router With One Server Radio Modem Remote Office LAN With Server Or Locally Radio Loaded Software Polarity
WAN
9 10 Ethernet 8 7 Link 6 5 4 3 2 PC 1 Modem
Router LAN Routers running BR-AS PC BR-ASX-01 64 Kbps or faster. Router PC
PC
PC This example illustrates low-cost license-free, spread-spectrum radio modems. Other available configurations provide speeds up to 10 Mbps (full duplex ethernet!) as well as T1 for additional voice circuits. Pricing begins at about $2,400 for a pair of radios and antennae and $1,000 each for routers. If you’re paying $200 or more per month for a phone line, the payback is a year or less with no monthly phone bills!
Installing a wireless link between remote terminals and a local host using license-free spread spectrum radio modems from DCB.
Distances of 12 miles or more are available using license-free or licensed radio modems. Use our microwave equipment for greater range. Terminals
Radio Link
SR Multiplexer Multiple RS-232 terminal connections Radio Modem Host Each SR Multiplexer Computer Radio supports up to 32 terminals Modem
SR Multiplexer
Terminals or PCs are connected to a remote host computer using DCB multiplexers and wireless links. Economical spread spec- trum radio modems connect multiplexers and terminals at up to 1.5 Mbps. By using our microwave systems, multiple T1 lines are available with multiple data and voice channels.
217.352.3207 800.432.2638 FAX 217.352.0350 Data Comm for Business, Inc. Bulk Rate 807 Pioneer U. S. Postage Champaign, IL 61820 PAID Permit No. 893 Champaign, IL
Data Comm for Business, Inc. 807 Pioneer Champaign, IL 61820
VOICE (217) 352-3207 (800) 432-2638 FAX (217) 352-0350 EMAIL [email protected] WEB http://www.dcbnet.com