Technical data

Seite 5
3 Port
At the modem, there is a block with 36 screw terminals
• for the interface RS232
• for the interface CL (TTY) 2 and 4 wire
• for the interface RS485 and
• for the power supply
3.1 Port plan of the screw terminals
3.2 Power supply
Pin No. Function Pin Type
9 PE PE
11 L1 Net
12 N Net
21 PE PE
22 PE PE
23 PE PE
24 PE PE
35 +24V /20mA unregulated out power
36 GND (24V) GND power
NOTE: A voltage between 90V – 260V AC/DC (50/60Hz) can be applied to
the modem. The power input is typically 3.5VA (5VA max.)
3.3 RS 232 / V24 interface
Pin No. Function Pin Type PC-port SUBD-9-pole
1 Vcc / +5V out power -
2 /IN1 -
3 DTR in 4
13 GND Gnd power 5
14 IN2 -
15 RTS In 7
25 RXD Out 2
26 TXD in 3
27 CTS Out 8
NOTE !! Bridges 31-32 and 33 – 34 have to be removed of!