Clear-Com ICS-22 - Manual (Page 15)

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual 1 - 9
The pinout of this connector is as follows:
Table 1-3: ICS-22 XLR Pinout Information
Figure 1-3: ICS-22 Program-Input Cable Wiring
Power Connection (5)
The panel requires local power, which can come from various sources,
including:
16-VAC Doorbell Transformer
A doorbell transformer can be attached to a separate box containing
the power-line connection and the low-voltage, 16-VAC can be routed
to the connector on the EB7-4W circuit board. This connection is
especially useful if the headset or speaker panel is installed in a wall.
14-VAC Wall-Mounted Power Supply
A Clear-Com wall-mounted power supply (part number 400008) can
be used for powering the panel from 120 VAC. (Use part number
400011 for 220 VAC power.) This connection is a better choice if the
headset or speaker is mounted in a desktop box, such as a Clear-Com
DT-Box, which is not located on a wall.
24- to 28-VDC Source
The headset or speaker panel can be powered from a DC source, such
as batteries.
To connect the selected power supply:
1. Connect the two wires from the power source to the two-position,
plug-on terminal strip.
2. Plug this connector onto the circuit board as shown in Figure 1-2 on
page 1-8.
Pin Number Function
1 Ground (Shield)
2 Positive Signal
3 Negative Signal
2
3
1
ICS-22 PROGRAM
INPUT CONNECTOR
XLR CONNECTOR
PIN 1
• The Program Input
can be set between
-20 dBu to +10 dBu.
• The panel can obtain
power from three
different sources.
• Note: Both 10-VAC
and 16-VAC doorbell
transformers are
commonly available
at hardware stores,
but only the 16-VAC
transformers are
suitable in this
case.The panel can
obtain power from
three different
sources.