44
Emergency Command Center Manual —
P/N LS10001-000FL-E:G 5/3/2016
Installation
ECC-RPU Remote Page Unit
2.8 ECC-RPU Remote Page Unit
Connections are made from TB24, TB12, and TB22 on the ECC-50/100 main control board to
TB1, TB3, and TB2 on the RPU. If the ECC-RPU is the last device on the audio and data bus chain,
signal terminations are required. For the external data bus, a removable jumper must be on pins 1
and 2 of JS4. If the ECC-RPU is not the last device, the jumper must be on pins 2 and 3 of JS4 as
shown below. For the external audio riser, when the ECC-RPU is the last device, termination ELR-
15K must be connected to pins 4 and 5 on TB2. T-taps and multiple home runs to the main control
board are not allowed for the external data bus or the external data riser.
+
-
+
-
+
-
+
-
+
-
+
-
B
A
B
A
B
A
main control board
RPU board
TB24
TB12
TB22
TB1
TB3
TB2
external operator interface power - 24VDC
external
data bus
external
audio
riser
to next operator
interface or amplifier
rp
u
w
ir
e
b
.w
m
f
Figure 2.24 Remote Page Unit Wiring (Class B/Style Y)
to next operator
interface or amplifier
to next operator
interface or amplifier
JS4
(shown jumpered
on pins 2 and 3)
Summary of Contents for ECC-50/100
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