Comelit MT CT 01 - Manual (Page 10)

MT CT 01
MT CT 01 9
Table 2: Switchboard terminals and associated expansion cards
TERMINAL FUNCTION EXPANSION
EARTH Earth terminal
L1 - L1 Terminals of line 1
L2 - L2 Terminals of line 2 2908
5V 5V power supply terminal for telephone OP
RX RX terminal for OP
TX TX terminal for OP
T1 Terminals of branch 1.
T2 Terminals of branch 2.
T3 Terminals of branch 3.
T4 Terminals of branch 4.
T5 Terminals of branch 5. 2907
T6 Terminals of branch 6. 2907
T7 Terminals of branch 7. 2907
T8 Terminals of branch 8. 2907
2 Sound towards external unit entry phone microphone 2909
3 Sound towards external unit entry phone loudspeaker 2909
4 Entry phone system ground 2909
S1 Entry phone 1 call input signal 2909
S2 Entry phone 2 call input signal 2909
S3 Entry phone 3 call input signal 2909
S4 Entry phone 4 call input signal 2909
+24 Output voltage +24Vdc ( max 30mA ) 2909
GND Ground
AL Alarm input for remote SOS line service 2913
N1 Relay contact 10A ( can be activated with DTMF digit # ) 2909
C1 Relay contact 10A ( can be activated with DTMF digit # ) 2909
N2 Relay contact 1A ( can be activated with DTMF digit * ) 2909
C2 Relay contact 1A ( can be activated with DTMF digit * ) 2909
N3 Relay contact 1A ( can be activated with DTMF digit 5 ) 2909
C3 Relay contact 1A ( can be activated with DTMF digit 5 ) 2909
230VAC Mains power supply 230V (on the terminal external poles)
BAT 12V Input for emergency battery (max 80mA)
Jack Connector Input for external music