Multiple unit connection, Figure 8: wiring an expander to a primary ans – Edwards Signaling ANS Audio Notification System User Manual
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Multiple unit connection
Figure 8: Wiring an Expander to a primary ANS
Unsupervised and power-limited
TO ADDITIONAL
EXPANDER UNITS [1]
A 14-pin ribbon cable (factory
supplied) can be used in place of
hard-wired connections.
Notes
[1] The maximum number of units that can be
cascaded is 15.
[2] Switch SN1-8 must be OFF for all units with
no microphone.
3.
All power, supervisory and speaker
connections remain unchanged.
4.
The modules must be in the same cabinet, or
must be located within 20 ft. and use conduit
for interconnections.
ANS25X, ANS50X, ANS100X
A
B
TB1
TB3
MSG
GAIN
MIC
GAIN
FAULT (yellow)
NORMAL (green)
ALARM (red)
LED1
LED2
LED3
TB2
P2
S1
SN1 [2]
1 2 3
J2
J1
+
+
+
+
–
–
–
–
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
A
B
TB1
TB3
MSG
GAIN
MIC
GAIN
FAULT (yellow)
NORMAL (green)
ALARM (red)
LED1
LED4
GND
FAULT
(yellow)
LED2
LED3
TB2
P2
U6
S1
SN2
SN1
1 2 3
J2
J5
J1
1
2
70V 25V
+
+
+
+
–
–
–
–
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11