Fire-Lite ECC-50 Instruction Manual page 45

ECC-RPU Remote Page Unit
Emergency Command Center Manual — P/N LS10001-000FL-E:D 9/3/2014
TB24
TB12
main control board
TB22
RPU board
TB1
JS4
TB3
(shown jumpered
on pins 2 and 3)
TB2
Figure 2.25 Remote Page Unit Wiring (Class A/Style Z)
external operator interface power - 24VDC
external
data bus
B
A
B
A
external
audio
riser
+
-
+
-
+
-
B
A
B
A
+
-
+
-
Installation
45