
Coral IPx Office Installation Manual
Shared Service Cards
9-105
Relay Contacts
RL
Y1, RL
Y2, RL
Y3
9
0
is a simplified circuit diagram of the two relay contacts.
The relays provide form A (single pole, single throw and normally open) contacts for
activating external circuitry and devices. Operation of the relays is determined by the
system database.
Only two of the three relay functions (RLY1, RLY2, RLY3) can be selected. The
selection is accomplished by P4 straps located on the U-RMI Office, RMI Office,
U-MR Office and MR Office cards (see
position of the P4 straps for the relays selection.
Table 9-27
Relay
Selection
Figure 9-37 Simplified
Relay Diagram
...................................................................................................
2
Configuring the Relay Contacts Jumper
Required Relays
P4 Strap Setting
RLY1 & RLY2
4-5 & 1-2
RLY1 & RLY3
4-5 & 2-3
RLY2 & RLY3
1-2 & 3-4
RLY 1
RLY1 or RLY3
RLY2 or RLY3
1
2
3
4
1
3
2
4
5
P4
Straps
PAGE
RELAY
BELL
RLY 3
RLY 2
Relay contacts
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