Omni30 User Manual
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UMC1620AR04
3.3 Omni30 Common Service Connections using an Omni30 Control Module
2
4
V
+
2
4
V
-
2
4
V
+
2
4
V
-
H
O
R
N
2
4
V
-
T
E
S
T
A
C
K
2
4
V
+
R
E
S
E
T
P
D
P
2
4
V
+
2
4
V
-
2
4
V
+
2
4
V
-
H
O
R
N
2
4
V
-
T
E
S
T
A
C
K
2
4
V
+
R
E
S
E
T
P
D
P
2
4
V
+
2
4
V
-
2
4
V
+
2
4
V
-
H
O
R
N
2
4
V
-
T
E
S
T
A
C
K
2
4
V
+
R
E
S
E
T
P
D
P
24Vdc Supply
connected to
centre unit
P
2
D
P
2
2
4
V
+
L
N
C
N
O
C
O
M
G
P
2
4
V
+
Alarm
Module
Alarm
Module
Control
Module
Optional Group Repeat
Outputs etc. (see text)
Figure 3-2 – Omni30 Common Service Connections using an Omni30/4 or 30/8 Control Module
NB: Throughout this manual ACKNOWLEDGE and ACCEPT are used interchangeably.
Note that P and DP connections correspond to connections of Rochester UC30 series of
annunciators. This compatibility is achieved by setting internal links as follows:
a. On Control Board (inside Control Module) set Links 3, 5, 6, 8 to A-B (as marked).
b. On Main Input Board (main PCB inside the Alarm Module, e.g. Omni30/8) set Links 3, 8
to A-B.
If these Links are left set to C-D, then the P and DP connections operate as described in
this manual, namely:
a. Terminal DP operates as FlashSync (flash rate of all lamps in all interconnected Omni30
units is synchronised).
b. Terminal P operates as FirstOut input/output.
The interconnection of units is still accomplished as per diagram above.
