XCU eXchangeable Control Unit User’s Guide (v1.6) 25
Chapter 2 - Installation
(or Active).
The function state depends on the selection in the INSTALL > SIGNALLING INPUT menu:
2.6 Setting up external audio level
The camera audio levels for channel 1 and 2 can be externally controlled by the XCU. In the
camera system menu, go to the INSTALL
> AUDIO > AUDIO GAIN MODE item and select Ext.
On the OCP 400, push the SETUP button and choose the Cam submenu. Use the NEXT
button to scroll to the REM AUDIO menu and select Rem. Apply a DC voltage to pins 6 and 14
of the signalling connector to control the levels of audio channels 1 and 2 respectively, as
shown in the figure below:
The actual audio level depends on the setting of the switches at the back panel of the camera
adapter. When Mic is selected, the max. gain level is -64 dBu, while max. line level is -32 dBu.
Menu setting Input is open: Input is 4 to 24V:
OH (open-high) Function is Active Function is Inactive
HO (high-open) Function is Inactive Function is Active
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