User guide

Technical Parameters 5.1

SMS Sending Input

Serial interface

Others

Loop voltage 48 V DC

Loop current max. 40 mA

Loop resistance max. 800 Ω

Tone frequency adjustable, default 425 Hz

Dialing type tone (DTMF) and pulse

Ringing voltage 42 Vrms 50/25 Hz

Calling line identification CLI during ringing according to ETSI FSK

Tariff pulses

f=16/12 kHz ; Umin=100mVef on 200 Ω

Answer supervision polarity reversal, 12/16 kHz pulses

Closed loop resistance max. 1kΩ

Open loop resistance min. 25kΩ

Output voltage / current open loop 3V / short circuit 0,3mA

Input overvoltage protection max. +/- 12V

Interface type RS-232C

Connector D-Sub 9 pins

Interface transmission rate 1200 - 115200 bps (autobauding) 8N1

Dimensions (w/o

connectors)

170 x 130 x 45 mm

Operating temperature 0°C to 45°C

Operating status signaling 3 LEDs (on, GSM network, line)