MT SBC 01
57
MT SBC 01
Legend:
24 VA
24V AC power supply
0 VA
0V AC power supply
LP LP
Incoming data line from external unit.
LM LM
Data line to risers.
CH CH
Free contact for call repetition.
OUT OUT
N.O. contact which closes, sending
a call from the switchboard to an internal unit.
IN IN
N.O. contact for special functions.
TX RX
RS232 serial. Connect to a PC to download a personal
directory using software Art. 1249/A.
GND —
GROUND serial RS232. Connect to Art. 1249/A
to download a personal directory from a PC.
Description of terminal block
Figure 2