Mitsubishi Electric MAM-AM20 Instruction Manual page 45

Appendix
10.6.2 MAM-AMx: Mitsubishi Alarm Modems 56k with RS232 and RS485
MAM-AM6
Service
Power
10...30 V DC
-
MAM-AM24
Service
Power
10...30 V DC
-
Abb. 10-4: MAM-AMx: Mitsubishi Alarm Modems 56k with RS232 and RS485
Mitsubishi Alarm Modem
56k
Process Line Data out Modem Mode
+
COM1 (RS232)
56k
Process Line Data out Modem Mode
+ R+ R- -T +T (0V)
COM1 (RS232)
MAM-AM20
Line
Service
Power
10...30 V DC
- +
Line
Terminals
Line
56k
Process Line Data out Modem Mode
COM2 (RS232) COM1 (RS232)
10 - 10