2N Fixed line replacement with 2N SmartGate - Manual v1.1.2 - Manual (Page 80)

Technical Parameters 5.1
80
Closed loop resistance max. 1 k
Open loop resistance Min. 25 k
Input overvoltage protection max. +/- 12 V
Data Interface
Interface type RS-232C
Connector D-Sub 9 pins
Interface transmission rate 1200 - 115200 bps (autobauding) 8N1
Others
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)