FRAUNHOFER INSTITUTE FOR INTEGRATED CIRCUITS IIS
DECT VOICE AND DATA COMMUNICATION M6 RADIO MODULE
The DECT M6 Radio Module enables a simultaneous wireless digital data and voice communication between one base station (fixed part, FP) and one or more mobile stations (portable part, PP) using exclusively assigned frequency bands. It is designed as compliance tested OEM-module for integration into end products. The radio module can also be a reference platform for customer-specific product development. System features, interfaces and mechanical design can be customized on demand. For test purposes, an evaluation-kit is available. Ready-to-use modules with standard functionality can be obtained from our production partner company. The utilization of the radio module technology may be licensed for development or manufacturing of proprietary solutions.
System Features
– Flexible network functionality: Up to 5 simultaneous duplex voice-/data links at one base station – Optimized communication protocol for error-protected data transmission with minimized delay times (over V.24) – Deterministic data transmission with constant delay and guaranteed throughput for time critical applications or streaming (over SSI) – Synchronization of base station modules for enhanced system capacity and avoidance of the near-far problem – Voice conferences with up to five participants on one FP; by connecting several FPs, full digital conferences with up to 15 users are possible – Channel aggregation for transmission rates up to 128 kBit/s (transparent) resp. 96 kBit/s (protected) or for higher data integrity by redundancy
Fraunhofer Institute for Integrated Circuits IIS Communication Networks Department
Nordostpark 93 90411 Nürnberg
Dipl.-Ing. (FH) Dipl.-Wirt.Ing. (FH) Karin Loidl +49 (0) 911/58061-9413 [email protected]
www.iis.fraunhofer.de
– Automatic antenna selection also at the mobile station (patented) for optimum reception even under difficult conditions; fast antenna diversity (FAD) minimizes reception errors in in-door environments – Encryption of voice-communication possible (DECT Standard Cipher, 64 bit key length) – Selected GAP-features (Generic Access Profile) supported – Available software interfaces: AT-modem or DHCI (DECT Host Controller Interface) – On-air-subscription: Registration of up to 5 mobile stations to one base station via air or data interface (capability for more mobile stations on request) – Locate database at the FP (DHCI only): Information about actually available clients – Loudspeaker and microphone can be connected directly – Connection via 40-pin connector with 2 mm pitch – The M6 hard- and software complies to EN 301 406, EN 301 489 and FCC Part 15.301ff (on request)
M6 radio module
Technical Data
– Frequency range: 1880 MHz to 1930 MHz, suitable for all DECT regions including USA and Canada, other ranges on request – Transmitter peak power typ.: 200 mW (+23 dBm); average TX power (one active link): approx. 9 mW – Sensitivity typ.: -92 dBm for 1000 ppm BER – Coverage: ~ 40 m in-door, ~ 400 m line-of-sight – Operating voltage: 3.15 V to 5.0 V for operation with three NiMH cells; battery charging can be controlled by the module – Typical average power consumption: 180 mW with one active connection (portable part) – Analog four-wire-interface for speaker and microphone – Serial V.24 interface with baud rates up to 230.4 kBit/s; with RTS/CTS hardware-flow- control and support of modem signals: DTR, DSR, DCD, RI; LVTTL signal level (2.55V), inputs 5 V tolerant; external level shifters convert the V.24 interface to a RS-232C interface – Flexible synchronous serial interface (SSI) with max. 500 kBit/s data rate and synchronization port for creation of base station networks (also without external reference clock) – I/O pins for transmission of binary information – Specified temperature range: -20 °C to +55 °C – Usable temperature range: -30 °C to +70 °C – Dimensions l x w x h: 80 mm x 60 mm x 3.5 mm (standard module); unhoused module for integration into customer products; weight: approx. 15 g – Two integrated antennas (patented) with approx. 0 dBi gain; external antennas can be connected – Environmental characteristics: RoHS compliant