4-Wire Intercom Connectivity
Always confirm that the non-Pliant 4-Wire intercom system and the CB2 wireless system are functioning
properly separately before connecting them together. Use the procedures below to configure the 4-Wire
connection from the BaseStation's Wired Settings menu.
Under the
Wired Settings
menu, select
Intercom Settings
:
1. Use the Navigational controls to navigate to the desired setting for a 4-Wire port.
A. For intercom type, press
Enter
to turn the port on or off; use the navigation buttons to scroll
through the list, and press
Enter
when the desired setting is highlighted.
B. If desired, enable Echo Cancellation (ECAN) for the 4-Wire ports. See the Echo
Cancellation section of
"Intercom Settings Menu" on page 52
for more information.
2. Now that your settings are established, connect the 4-Wire intercom system to the appropriate
ports via RJ-45 cables/connectors.
3. Adjust in/out audio levels between the CrewCom System and the 4-Wire intercom system as
needed.
A. With appropriate mic gain settings and expected nominal levels from the interfaced system,
the 4-wire settings you can expect to see for RTS, Clear-Com, and Riedel are provided in
the table below.
4-Wire Intercom Settings
RTS
Clear-Com Riedel
4W OUT +2
-3
+1
4W IN
-2
+3
-1
More About the CB2 BaseStation 4-Wire / RJ-45 Connection
Wiring schemes vary, and it is important to ensure that the cable is wired correctly for proper system
operation. The CB2 BaseStation utilizes RJ-45 jacks for connection to a 4-Wire port. Only two pairs of
wires are utilized—one to send audio and one to receive audio. Any twisted pair wiring can be used to
connect between the 4-Wire and the CB2 wireless system. See the table below for a list of the 4-Wire
RJ-45 pin connection list.
Note:
Pins 1 and 8 are tied, and pins 2 and 7 are tied.
Operation - 60
