TEMA TELECOMUNICAZIONI SRL
Doorphone AA-514
MAS-AA514-REV03EN
Page 25 of 56
8.3.
CONNECTIONS
8.3.1. Connection of the base system AA-514
TB1
terminals block of relay 1 circuit
TB2
terminals block for the connection of the
telephone line of the PBX extension
TB3
terminal block of relay 2 circuit
T
audio balance trimmer,
(leave as set in the factory)
TB4
terminals block for connection of the
power source for the AA-514 system
H
jumper for internal heating circuit
L
jumper for backlighting circuit
TB5
terminals block for the Day / Night
service keys backlighting when controlled
by the system relay 2 and redistribution
of the command to the eventually present
expansions
M
contacts to be shorted to improve the
performance of the microphone in a
particularly noisy environment
FC
polarized connector for connection of the
expansion cable to the AA-516P or AA-
516K systems
For details of the connection of the signals on
terminal blocks TB1 and TB3 for the relays,
see section 8.4
Once that the bottom rear plastic box of the system is arranged in
the wall, take the front panel with the electronic board, insert the
two transparent plastic pins present on frame into the appropriate
holes on the wall box and get ready to connect the wires to the
terminal blocks. Make sure that all cables, including telephone line,
have not yet been powered before connecting them to the card.
These operations must be performed by a specialized technician.
Take the cables that have been prepared by one of the outgoing
access on the base system and start connecting. Remove,
connect, and replace the terminals according to the connections to
be made. To make the connections do not remove the system
board from the front panel but just remove the insertion
connectors.
