Issued March 1998 9969

Industrial Message Displays Instruction Leaflet

RS stock no. 492-099, 492-106 and 492-112

Supplied with the message display: ● Displaying the time ● Power display (internal or external) The time feature allows the user to show the current time on ● Keyboard the display. To operate the Time function, press the Shift key and then press the S and T keys. When in edit the time ● Fixing will appear on the right of the display screen. The 16x1, 50mm characters and 20x1, 50mm characters ● Displaying the date message displays have two M4 threads, one on each end of the display so that the display may be wall mounted or ceiling The date feature allows the user to show the current date on mounted. The 16x1, 100mm characters message display has the display. To operate the Date function, press the Shift key four M6 threads on the back and two M6 threads on the top so and then press the S and D keys. When in edit mode, the day that the display may be wall mounted or ceiling mounted. of the week will appear on the left of the screen with the date Fixing brackets, screws and spacers are provided. The spacers on the right of the screen. (16x1, 100mm character display only) may be used to mount ● Reset the display tilting forwards when fitted to the top two screws. The Reset command is used to cancel the effect of the other Take care to ensure that the display is mounted securely. keyboard function commands. This command brings the Important note: Please leave the unit switched on for 24 hours unit back to its normal way of operating: to enable the internal battery to be fully 1. Message progresses from right to left. charged. 2. Characters are normal 5*7 matrix. 3. Unit is at full brightness. Using the single line keyboard and message To reset your display, put the unit in edit mode by pressing the display unit Stop/Run key and press Shift then CE. The unit responds “Sure When the unit is powered up it will default to “00”. Y/N” type Y for yes or N for no. Display functions Displaying messages This section explains the functions of the keyboard keys in edit The way in which a message is displayed can be controlled by mode, and how to use the real time clock and calendar. choosing from these styles available. ● Stop/Run ● Flash The Stop/Run key toggles between Run and Edit mode. This The flash feature allows the user to make a screen full of text means that pressing the Stop/Run key whilst text is running flash when displayed. To operate this command, place the will put the unit in edit mode and vice versa. cursor at the end of the message to flash using the ● Clear All keys, and then press Shift then M. The Clear All command completely erases everything in the ● Vertical unit’s memory. To use this feature, press the Shift key and This command makes the screen full of text scroll up then press the Q (Clear All) key. The prompt ‘Are you sure? vertically onto the screen, pausing for approximately one Y/N’ or ‘Sure Y/N’appears on the screen. If Y for yes is typed, second in the middle. The text then moves vertically up and all text in the memory is erased. off the display. To operate the command, press Shift then V ● Clear Entry before the message is entered. The user may delete one character at a time by simply ● Wipe pressing the CE key. The Wipe command is like a one-sided curtain. It opens and ● (<— —>) closes a screen full of text from the right-hand side of the This feature allows the user to move the cursor one place to screen. To operate this command, press the Shift key and the left or right. The arrow key is located at the right hand then ? before the message is entered. side of the keyboard. To move the cursor one place to the ● Jump right, you press the arrow key once. To move the cursor one The Jump command jumps the screen full of text onto the place to the left, press the Shift key and then press the arrow screen. To operate this command, hold down the Shift key key and the cursor moves one place to the left. ● and press . (period) before the message to be displayed is Set time and date entered. Press Shift, then S and then R to begin setting the time and ● Shoot date. The unit will request in the following order: Year, With this command, each letter in the message is swiftly slid Month, Day of Week, Date, Hours, Minutes, Seconds. Two along the display until the screen is full of text. To operate digits must be entered for all prompts except Day of Week, this command, go to the beginning of the message to be where 1 = Monday,2 = Tuesday,etc. The Stop/Run key ends displayed and press Shift then, (comma). this function and returns the display to the message being edited. 9969

● Wide Alphanumeric characters This command increases the distance at which the screen full of text is readable. Only half the normal number of ! , 7 A L W h t characters will fit the screen. To operate this function, put the “ - 8 B M X i u unit in Edit mode by pressing the Stop/Run key then press Shift then Z. Once this is done, the unit is blanked # . 9 C N Y j v momentarily then the unit will display all text in Wide font $ / : D O Z l w until the Reset command is used. ● Open % 0 ; E P a m x This command opens the screen full of text on the screen & 1 < F Q b n y from the centre out. It resembles a curtain opening over the ' 2 = G R c o screen full of text on the display. To operate this command, z press Shift and then X before the screen full of text is entered. ( 3 > H S d p ● Close ) 4 ? I T e q This command resembles closing a curtain over the message on display. To operate this command, place the * 5 £ J U f r cursor at the end of the message to be closed, using the + 6 @ K V g s arrow keys and press Shift then C. ● Vertical scroll up European characters This feature allows a screen full of text to be shown when the display unit is stood up vertically. This command is activated A Umlaut Ä by pressing Shift then space then V before a screen full of O Umlaut Ö text is entered. ● Pause U Umlaut Ü The Pause command allows the user to stop the screen full C Cedille Ç of text from scrolling across the screen for a brief interval, useful to highlight certain parts of a message. To operate this AE Danish ® command, place the cursor at the end of the message to be ? Spanish ¿ paused and press the Pause key. The longer the screen full of text is to be held on the screen, the more times the Pause EU Scandinavian ¯ key should be pressed. B Spanish ñ ● Freeze A Angston Å The Freeze command holds the last screen full of text indefinitely on the screen. To operate this command, press the Shift key and then press the D key after placing the Using software with a single line message cursor at the end of the displayed message. To end this display unit command, press the Stop/Run key. Installation of software Character sets It is recommended that a back-up copy of the diskette is made Whilst in edit mode, it is possible to alter the format of using for example the ‘Diskcopy” command (refer to your DOS characters on the message screen. manual) before installing. ● Caps-lock Insert the diskette in Drive A and type “Install”. A directory This feature changes the characters from upper to lower called ‘DL’ will be created in the C Drive and all files will be case characters. To change from upper to lower case copied into this directory. characters hold down the Shift key and press the Pause Note: The software can only run if the computer and the (Caps-lock) key. All subsequent text will then appear in monitor is to IBM 286 or greater with VGA. lower case characters on the screen. To revert back to upper Starting the program case characters, press Shift and then the Pause key. Once in the C>DL directory, type ‘NDL’. The main screen can ● Character font be seen being loaded. To change the character font, press the Shift key and then press the space key and then S before the message is Figure 1. entered. ● Bold Data line This feature changes the character font from normal to bold. To operate this command, press Shift then space then B TEXT UNITS SELECT SIMULATE SEND QUIT before entering the message. ● Alphanumeric and European characters There is a total of 84 alphanumeric characters and 9 RS European characters available on the keyboard. To use characters on the keyboard above the keys press the shift key and the key directly below the character required.

Select option press return

2 9969

The six menu options can be seen at the top of the screen and Option 1 Start and stop time the first menu option is highlighted. Enter the start time (HRS:MINS) and the stop time (HRS:MINS) Selecting an option for which a particular page is to be displayed. If the page of text is to be shown on a certain day of the week, enter the day Use the left and right arrow keys to move between the options. number: The current option is highlighted. To select the option, press the Return key. The subscreen associated with the chosen option is [Monday = 1, Tuesday = 2, Wednesday = 3, etc.]. then loaded. Eg.1**-** 09:00 **-**17:00 1 5 This page will be shown on the display each day from Monday Display functions to Friday beginning at 9:00am and finishing at 5:00pm This section explains the function of the keyboard keys in edit (inclusive). mode, how to display timed messages, how to use the real time If the day number is not entered, an (*) is inserted clock, calendar, dim/bright feature, the sending of messages to instead and the page will be shown at the same time every day. the display and how to exit from the software. Eg.2 **-** 00:00 **-** 08:59 * * Field 1 When the Text Option is selected the following screen appears: **-** 17:01 **-** 23:59 * * Field 2 Help Menu **-** **:** **-** **:** 6 7 Field 3 Key Effect The page will run from 5:01pm until 08:59 the following Shift F3 Timed text morning on weekdays and all day on Saturday and Sunday. Shift F5 Send time and date Where no Start and Stop Date is used, the start hours should be * Shift F6 Clear timed text page greater than the stop hours. Shift F7 Clear text page Option 2 Start time only * Shift F8 Copy timed text page Eg.3 23-04 **:** **-** **:** * * * Shift F9 Clear all timed texts This page will run all day on the 24th of April. Insert Insert blank page Option 3 For greater periods of time Delete Delete current page Eg.4 03-03 09:00 05-06 17:00 * * Field 1 End End of text 01-11 09:00 06-01 17:00 * * Field 2 Home Start of text This page will run from 9am, 3rd of March until 5.00pm, 5th of Tab Cursor position +16 June and from 9am, 1st of November to 5pm, 6th of January. To Shift tab Cursor position -16 return to the text press the . * Note: These only apply inside timed text menu Shift F3. ● Displaying the time AF1= Time Editor Press the and the F1 key to display the time on the Page 1 is loaded and the cursor is placed under the first display. character of the Editor Unit. The current page number is indicated to the right of the Editor ● Displaying the date Unit. AF2 = Date Use the Page Up and Page Down keys to change the current Press the Alt key and the F2 key to display the date on the page. display. Use the Left and Right Arrow keys to move through the text one ● Dim/Bright character at a time. To show time/date programmed as Dim or Bright, select the Use the to move up 16 pages at a time. Dim or Bright commands (Shift F5 or Shift F7 respectively). Use the Shift and Tab keys to move down 16 characters. ● Send To move to the start of a line, press the . When the Send option is chosen, all selected pages will be To move to the end of a line, press the . sent to the units which have been selected to accept Set up of time and date to display a message transmissions. The following prompt appears on the screen: Each of the 99 pages has 3 timed texts associated with it. To Are you sure Y/N view the timed text for any page press the Shift key and the F3 key and you will see the following: You are asked to make a positive choice as you must wait for Figure 2. Timed texts completion once transmission has begun. The transmission screen will appear as follows: Date Start Date Stop Day ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ Field 1 : : : : Figure 3. ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ Field 2 : : : : Transmitting ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ ✽✽ : : : : Field 3 Sending page X to...

Note: If field 1 is completely filled with , then this page will be valid and will show at all times. Unit X This feature enables the user to show each page of text on the display at a specific time(s) during the day and/or on a certain day of the week. PC Note: The time and the date on the PC should be checked Please wait for completion using the DOS command (see your PC manual) to ensure that the correct time is sent to the display.

3 9969

As transmission is taking place, the X value indicates which Alphanumeric characters page is being transmitted and to which unit the page is , being sent to. This gives an idea of how long the ! 7 A L W h s transmission will take. “ - 8 B M X i t # . 9 C N Y j u Once the pages have been sent, acknowledgement of successful transmission will be indicated and a simulation $ / : D O Z k v begins for each unit. Each unit will indicate which text it is % 0 ; E P l w currently showing. a & 1 < F Q b m x To escape from this simulation, press the ‘ESC’ key at any ' 2 = G R c n y time. ● Exit the software ( 3 > H S d o z Select the Quit option and the following prompt appears on ) 4 ? I T e p the screen: * 5 £ J U f q Are you sure Y/N + 6 @ K V g r

Selecting the Quit option exits the software program and all European characters current changes are saved. Character sets Key Character Whilst in edit mode it is possible to alter the format of characters Alt 654 A Umlaut Ä on the message screen by selecting from the formats available. Alt 409 O Umlaut Ö ● Caps-lock This feature changes the characters from upper to lower Alt 666 U Umlaut Ü case characters. To change from upper to lower case Alt 640 C Cedille Ç characters hold down the Shift key and press the Caps-. All subsequent text will then appear in lower case Alt 402 AE Danish ® characters on the screen. Alt 936 ? Spanish ¿ Pressing the Shift key and pressing any character will make the character the opposite case (upper or lower) to the Eg: To type Ä hold down Alt key and press 6 and release then characters proceeding it. All subsequent text following this press 5 and release, then press 4 and release character will then revert back to the original character sequentially. format. Note: The must be used for European ● F1 = Normal characters. This mode shows the text with normal size characters. To show text in normal, press the F1 before typing Displaying messages the text. The way in which a message is displayed can be controlled by ● F3 = Script choosing from the following available styles. To show text in script font, press the F3 function key before ● F2 = Wide typing the text. This command widens the screen full of text which follows it. ● F9 = Bold Only half the normal number of characters now fill the To show text in script bold font, press the F9 function key screen. To show text in wide mode, type F2 before typing before typing the text. any text. ● ● F10 = Roman F4 = Jump To show text in roman font, press the F10 function key before This command Jumps the screen full of text onto the screen. typing the text. To Jump a message onto the screen, press the F4 key before typing any text. ● AF5 = Dim ● F5 = Vertical This command sets the unit to display in dim mode. ● This command scrolls a full screen size text upwards onto AF7 = Bright the screen, pausing for approximately one second in the To show text in bright mode, press the Alt key and the F7 middle. Then the screen full of text moves vertically up and function key before typing the text. out of the display. To operate this command, press the F5 Alphanumeric and european characters function key before typing in screen full of text. There is a total of 85 alphanumeric characters and 6 European ● F6 = Pause characters available on the keyboard: This command allows the user to hold the message on the screen for a certain length of time. To operate the Pause command press the F6 function key after screen full of text to be held. Each time the F6 (Pause) function key is pressed a [P] will appear to the right of the screen full of text on the screen.

4 9969

● F7 = Flash he software for the 16x1, 100 and 50mm high characters single This command flashes the number of characters in one line message display unit is RS stock no. 492-140 and for the screen full. To operate the command, press the F7 key after 20x1 single line message display unit is RS stock no. 492-156. the screen full of text required to flash. ● F8 = Freeze Serial protocol The Freeze command freezes the screen full of text Data format of serial protocol interface indefinitely. Data Format is 8 data bits, no parity and one stop bit. To send to ● AF3 = Open one or more single line message display units in a string: send This command opens the following screen full of text. the data and commands in the following format. The sign will ● AF4 = Close echo back a byte of data for each character received and processed. This command closes the previous screen full of text . ● AF6 = Shoot Send Byte Echo Action With this command each letter in the message is swiftly slid along the display (from right to left in normal mode) until the 02H 02H Initiate edit mode display is full and all the screen size text is shown. To TEXT TEXT see section 3 on creating operate this command, press the F7 function key before text and sign commands typing in the screen full of text. 7EH 7EH Terminate edit mode 03H 03H Initiate run mode Using multiple message displays Note: The H after the number indicates a HEXADECIMAL value. The units option allows the user to select the units which are to accept the text messages. This software package allows for the Text is sent with Bit 7 set to 1 (8-bit ASCII) connection of up to 20 display units. When the screen appears, TEXT here refers to the combination of ASCII commands and 20 numbered boxes are shown. Each box represents one text as described in section ‘ASCII Hex values’. display unit. After sending a byte, please wait 5 milliseconds before sending Selected units are highlighted in green. another byte. Units not selected are coloured red. If sign does not echo text and commands properly,it may be out The unit highlighted in blue indicates the cursor position. [For of sync. Send 03H until sign echos 03H. It will then be ready to half duplex, (where acknowledgement is implemented) a unit receive the next sequence of commands. highlighted in purple indicates that an unsuccessful The single line message display will echo the same byte sent, transmission has taken place with that unit]. except for certain commands which are indicated. All text must Movement of the cursor [Blue box] is achieved by using the be upper case WITH BIT 7 SET TO ‘ONE’. ASCII space must be arrow keys. To select or deselect a unit press the Spacebar key sent as AOH instead of the usual 20H. Commands must be and the box switches between red and green. entered in the same position in the text as they would be if they To select all units press F1. were entered on the keyboard supplied with the unit. The first To deselect all previously selected units, press F2. screen full of text must be overwritten each time a new message is sent. Note: All selections are retained in memory so that a record is kept of the last units that received information. Multiple single line message display units on To return to the main menu, press the Escape key. one communication line Select The single line message display can be daisy-chained together The Select option draws a screen with 99 numbered boxes. on one communication line. The data-out signal should be Each box represents one page of text. Pages coloured in green connected to the data-in Signal of each subsequent sign. are selected for transmission. Pages coloured in red will not be Ground should remain common to all units. sent to the selected units. The page coloured in blue indicates The data-out signal on the last unit should be brought back to the current cursor position. data-in signal of the host computer. Movement of the cursor is achieved using the arrow keys. The To send to a particular unit on the chain, send the address, data spacebar is used to select or deselect a page, ie. pressing the and commands in the following format. The sign will echo back Spacebar on a selected page deselects that page. a byte of data for each character processed. To select all 99 pages for transmission, press the F1 key. Notes: The H after the number indicates a HEXADECIMAL value. To deselect all previously selected pages, press the F2 key. Text is sent with Bit 7 set = 1. Note: All selections are retained in memory to allow the user to TEXT here refers to the combination of ASCII commands see what text(s) were last sent to the unit (s). and text as described in section ‘ASCII Hex values’. Press the Escape key to return to the main menu. The splitter box makes these connections easy. Simulate The Simulate option allows text to be viewed that has been sent Send Byte Echo Action to selected units. To simulate the page that is currently being 0FH 0FH Initiate address mode edited, press the Escape key to exit the Texts option. Select the Simulate option to view exactly how the unit behaves with this Address Unusable Echo text. When the simulation is complete, press the Escape key (20h + unit no.) and the main menu will appear once again. OEH OEH Terminate address mode The option to Print Y/N appears on the screen. 02H 02H Initiate edit mode Type Y to print currently selected pages. Text Text (See notes) Type N to return to main menu.T 7EH 7EH Terminate edit mode 03H 03H Initiate run mode

5 9969

Daisy-chaining single line message displays 9C Jump to text CE N Up to 95 units can be put on one chain. Distance in chain 9D Reset CF O between units is dependent upon how the signal integrity is 9E DSPL time D0 P maintained in the RS232 cabling etc. 9F DSPL date D1 Q After each 100m, a booster box should be used to boost the AO Space D2 R signal. A1 ! D3 S Each unit on the chain has its own HEX address. The display A2 “ D4 T closest to the host computer, unit 1, is addressed at HEX 20. A3 # DR U The next unit, unit 2, is addressed at HEX 21, the next unit, unit A4 $ D6 V 3, is HEX 22, etc., units will respond up to the highest address, A5 % D7 W HEX 7E. A6 & D8 X Sending multiple messages to a sign A7 ‘ D9 Y To send multiple messages to a unit, send data intermixed with A8 ( DA Z message addresses and commands in the following format. A9 ) DB A umlaut The sign will echo back a byte of data for each character AA DC O umlaut processed. * AB + DD U umlaut Send Byte Echo Action AC , DE £ Eng. pound 02H 02H Initiate edit mode AD - DF N Spanish TEXT TEXT See notes AE . EO C-Cedille 7EH-NN 7EH-NN Terminate message NN.* AF / E1 Scand EW TEXT TEXT See notes B0 0 E2 AE Danish 7EH-01 7EH-01 Terminate message 1.* B1 1 E3 ? Spanish TEXT TEXT See notes B2 2 E4 7EH-00 7EH-00 Terminate message 0.* B3 3 E5 03H 03H Initiate run mode B4 4 E6 Lamps off Notes: NN = message number, starting with NN in B5 5 E7 Lamp 1 descending order until last message. Last message B6 6 E8 Lamp 2 (message zero) is 00 and must be 7EH (or NN must = B7 7 E9 Lamp 3 00). B8 8 EA Lamp 4 Text is sent with bit 7 set = 1. B9 9 EB Lamp 5 TEXT here refers to the combination of ASCII commands BA : EC Lamp 6 and text as described in section ‘ASCII hex values’. BB ; ED Lamp 7 Multiple messages may be combined with the address feature to send multiple messages to single selected sign. BC < EE Lamp 8 BD = EF Wide ASCII Hex values BE > F0 Shoot Start of Text ...... 02 BF ? F1 Close End of Text ...... 03 C0 @ F2 Open Addresses ...... 20 thru 7E C1 A F3 Wipe Messages ...... 27 thru 7E C2 B F4 Freeze HEX Symbol C3 C F5 $80 a C4 D F6 Jump $81 b C5 E F7 Vert $82 C6 F F8 $83 C7 G F9 Font $84 c C8 H FA Font $85 d C9 I FB Font $86 e CA J FC Flash $87 f CB K FD Pause $88 g CC L FE End block $89 h CD M Fe Red block $8A i $8B j $8C k $8D l $8E m $8F n $90 o $91 p $92 q $93 r $94 s $95 t

6 9969

Selecting messages and displaying date and RS-232 communications time 1200 baud, no parity, 8 data bits and 1 stop bit. All commands and protocol stop the sign and require a Sample protocol (version A) complete new refresh of the sign’s memory contents. $06, $06, $06, $06, $06, $06 = Initiate header sequence A protocol exists to change a sign’s message, to set the date $0F = Initiate address mode and to set the time while the sign is running without disturbing the memory contents or stopping the run mode. $21 = Address of unit These three commands consist of a fixed field of 11 bytes, the $0E = Terminate address mode first of which, must be a . No echo from the sign will occur $02 = Initiate text mode with these commands. $B0 = 0 Multiple units $B1 = 1 To select a single unit on a daisy chain, send the address of the $B2 = 2 unit prior to sending the commands shown below. The sign will $B3 = 3 echo back a byte of data for each character processed. $B4 = 4 Send Byte Echo $B5 = 5 0FH 0FH Initiate address mode $B6 = 6 Address Unusable Echo $B7 = 7 (20H + unit no.) $B8 = 8 OEH OEH Terminate address mode $B9 = 9 Changing a sign message $C1 = A The unit must contain multiple messages and the message $C2 = B number to be displayed must exist in the sign before this $C3 = C command can have effect. This command changes the $C4 = D message number in a single sign. No echo from the sign will $C5 = E occur. The following command string will select message $C6 = F number 01: $C7 = G Send Byte Action $C8 = H 3AH (:colon) Initiate: silent command $C9 = I 30H ASCII (tens) message no. $CA = J 31H ASCII (units) message no. $7E = Text block number 30H ASCII fill byte Note: it may be necessary to increase the header sequence 30H ASCII fill byte from 6x$06 to 10x$06 to ensure correct communications 30H ASCII fill byte on some PC’s. 30H ASCII fill byte $** repeated x 54 (note: if nothing is required type “✽” x 54 = 30H ASCII change sign command Hex AA) 33H ASCII change sign command $03 = End of text 03H ASCII fill byte $09 = Display update 03H ASCII fill byte, terminates Note: 5ms delay between each byte. Setting the date Protocol check The unit must contain the clock/calendar option module. This command sets the date in a single sign. No echo from the sign Any of the previous protocols will accept a request for will occur. The following command string will set the date to Jan checksum of text bytes to be returned (optional). 02, 1989. $01, $address, $checkbyte, $checkbyte, $03. Setting the clock Wiring instructions The unit must contain the clock/calendar option module. This Serial connections for 16x1, 100mm high character message command sets the date in a single sign. No echo from the sign display. will occur. The following command string will set the time to 08:01:00. Figure 4. Standard serial socket connections Send Byte Action 3AH (: colon) Initiates silent command 3 30H ASCII (tens) hours A 4 2 38H ASCII (units) hours B 30H ASCII (tens) minutes 5 1 31H ASCII (units) minutes C 30H ASCII (tens) seconds A. Ground B. Serial in to unit 30H ASCII (units) seconds C. Serial out from unit 30H ASCII set clock command 34H ASCII set clock command 03H ASCII fill byte 03H ASCII fill byte, terminates

7 9969

Technical specification Figure 5. Serial plug Supply voltage ______220-240V ±10% Screw Operating temperature range ______-5°C to +80°C

No of Characters Characters Total no. Memory Viewing Power RS stock no. lines per screen height (mm) of LEDs capacity distance consump. (charact.) 492-099 1 16 (16x1) 50 560 6000 36m+ 9V/3A 492-112 1 20 (20x1) 50 700 6000 36m+ 9V/4A 492-106 1 16 (16x1) 100 560 6000 66m+ 14V/6A When wiring the serial to the computer (IBM compatible) connect the wires at the PC end as follows: Dimensions and weights Using the 9-way port: Pin 3 = Serial out Dimensions are in millimetres Pin 2 = Serial in Pin 5 = Ground RS stock no. Length Depth Height Weight Using the 25-way port Pin 2 = Serial out 492-099 737 40 110 3kg Pin 3 = Serial in 492-112 963 40 110 4kg Pin 7 = Ground 492-106 1500 75 255 18kg Serial connections for the 50mm high character 16x1 and 20x1 message displays

Figure 6. Serial socket Remove by unscrewing to gain access to solder pins A on socket C A B C B

A. Serial out B. Serial in C. Ground

When wiring the serial to the computer (IBM Compatible) connect the wires at the PC end as follows: Using the 9-way port pin 3 = Serial out pin 2 = Serial in pin 5 = Ground Using the 25-way port pin 2 = Serial out pin 3 = Serial in pin 7 = Ground

The information provided in RS technical literature is believed to be accurate and reliable; however, RS Components assumes no responsibility for inaccuracies or omissions, or for the use of this information, and all use of such information shall be entirely at the user’s own risk. No responsibility is assumed by RS Components for any infringements of patents or other rights of third parties which may result from its use. Specifications shown in RS Components technical literature are subject to change without notice.

RS Components, PO Box 99, Corby, Northants, NN17 9RS Telephone: 01536 201234 An Electrocomponents Company © RS Components 1998