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3.
Carefully reinstall the bracket/microphone assembly.
Remember to attach the ground cable.
earth ground
Figure 4 Backbox Mounting
3 Wiring
Connections are made from TB24, TB12, and TB22 on the
ECC-50/100 main control board to TB3, TB2, and TB1 on
the RM. If the ECC-RM 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-RM is not the last device, the
jumper must be on pins 2 and 3 of JS4. For the external
audio riser, termination (15K ohm resistor) must be on
pins 4 and 5 on TB2.
main control board
external operator
interface power -
24VDC
+
TB24
-
B
TB12
A
external
audio
riser
+
TB22
-
Figure 5 Remote Microphone Wiring
(Class B/Style Y)
2
mounting holes
4.0" (10.16cm) O.C.
lower mounting holes
to next operator
interface or
amplifier
RM board
A
B
A
external data bus
B
JS4
(shown jumpered
on pins 2 and 3)
main control board
+
TB24
external
data
bus
B
A
TB12
B
A
+
-
TB22
+
-
Figure 6 Remote Microphone Wiring
4 LED Indicators
System in Use A green LED that turns on steady when
the main console, an LOC, an RPU, or an RM has control
of the audio system.
OK to Page A green LED that turns on steady to
instruct the operator that he/she may start speaking.
Power A green LED that turns on steady when DC
5
4
TB1
power is present.
3
power
2
1
Data Trouble A yellow LED turns on steady when the
5
TB2
main console and RM cannot communicate.
4
audio
3
2
out
Audio Trouble A yellow LED that turns on steady
1
when the audio riser wiring is open or short-circuited.
Mic Trouble A yellow LED that turns on steady to
indicate a microphone wiring fault.
TB3
5
4
data
3
bus
2
1
ECC-RM Installation Document — P/N LS10029-000FL-E:B 8/27/2013
external operator
interface power -
24VDC
-
external
audio
riser
(shown jumpered
on pins 2 and 3)
(Class A/Style Z)
RM board
5
4
TB1
3
power
2
1
5
TB2
4
audio
3
2
out
1
A
TB3
5
B
4
data
3
A
bus
2
B
1
JS4
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