1. Radio interface frequency band: 868,0 868,6 MHz type modulation: FSK number channels: bandwidth: 200 kHz transmitting power: (10dBm) receiver sensitivity: 105 dBm antenna connector: SMA female output impedance: O
3.“ transmission rate: 9,6kb/s operation type asynchronous transmission parameters data bits, stop bit, none parity electric signals the interface meet the requirements CCITT V.28 electrical signals the RS-485 interface (module WM868-R4) meet standard CCITT V.11 electrical signals the USB interface (module WM868-U) meet standard USB 2. Alarm relay output „ALARM RELE“
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maximum switched current: 0,1 maximum switched voltage: 60V DC, 24V dielectric strength relay galvanic separation: 1000V ohmic resistance on-state contacts: Q
3. Configuration interface RS232 „CONFIG.3.Technical parameters the WM868-MM/MS/U/REP modules
3. Power supply
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WM868-R2, WM868-R4 and WM868-REP modules require external power supply 24)V For example possible use power supply source DIN bar 230V-50Hz/24V= /max. Bus communication interface RS-232, RS-485, USB transmission rate adjustable from 300b/s 38,4 kb/s operation type asynchronous transmission parameters: configurable (default: data bits, stop bit, none parity) electrical signals the RS-232 interface (module WM868-R2) meet standard CCITT V.28
3.5. VA; WM868-U module can supplied external power supply 24)V from connected through USB interface; power supply source must meet the safety protective transformer requirements according the local governmental standard (in Czech Republic ČSN-EN61558-2-6); the primary side the power supply source must protected automatically irreversible fuse; maximum current take-off 0,1A, power supply current magnitude depends the output interface load.6. Environmental parameters: installation environment: complies with AA6, AB4, (ČSN 2000 standard range operating temperatures: 50*0 range storage temperatures: 70C relative humidity: 90%, condensation degree protection: IP20 Page 3
WM868-R2/R4/U/REP description and operation
. Dimensions: width: height: depth: weight: 102 120 200 g
3.0 WM868-REP module not equipped link communication interface
3. The quiescent current take-off the device without the output interface connected mA; devices are protected the power supply input reversible fuses (polyswitches) with actuating current 300 mA.2.7.4.
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