Fire-Lite ECC-50/100E Emergency Command Center - Manual (Page 41)

Emergency Command Center Manual —
P/N LS10001-000FL-E:A 4/10/2013 41
ECC-LOC Local Operator Console
Installation
2.7 ECC-LOC Local Operator Console
Wiring for the Local Operator Console is accomplished between TB24, TB12, and TB22 on the
ECC-50/100 main control board to TB3, TB4, and TB5 on the LOC. If the ECC-LOC 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 JP2 when the LOC is the last device on the chain.
If the ECC-LOC is not the last device, the jumper must be on pins 2 and 3 of JP2 as shown below.
For the external audio riser, when the LOC is the last device, termination ELR-15K must be con-
nected to pins 5 and 6 on TB5. 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
B
A
main control board
LOC display board
TB24
TB12
TB22
TB3
TB4
TB5
external operator interface power - 24VDC
external data bus
external audio riser
to next operator interface or
amplifier (or, if last device,
signal termination ELR-15K)
to next operator
interface or amplifier
lo
c
w
ir
e
b
.w
m
f
Figure 2.22 Local Operator Console Wiring (Class B/Style Y)
TB2
JP2
(shown jumpered
on pins 2 and 3)