User guide

Table Of Contents
Technician’s Handbook
228
Table 30: Analog services module
Port Pin
number
Signal
Port 1
LS/CLASS
Port
1 -3 Not used
4 Ring
5Tip
6 - 8 Not used
Port 2
OPS Port
1 - 3 Not used
4 Ring
5Tip
6 - 8 Not used
Port 3
ONS or
Door Relay
Port
1 and 2 Isolated relay contacts (normally open) for controlling a door
lock soleniod. These contacts close after the Door Open
button on the Door Answer extension is pressed.
3 Button contact
4 Ring
5Tip
6 Ground
7 and 8 Isolated relay contacts (normally open) for controlling power
to the door intercom. When the relay is closed, these pins
provide power to the microphone and speaker of the door
intercom unit.
If a user presses the button on the door intercom unit, the
intercom unit calls the Door Answer extension. After the Door
Answer extension goes off-hook, these relays close and
power is provided to the intercom’s microphone and speaker.
Port 4
Loudspeak
er Paging
Port
1 and 2 Isolated relay contacts for controlling external equipment
(normally open)
3 Not used
4 and 5 Bi-directional speech pair
6 Not used
7 and 8 Unassigned input - normally open circuit