Grass Valley Adder II - Manual (Page 28)

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Setting Up an Adder II System
Installing/Removing Intercom Modules
The interface is compatible with powered or unpowered belt packs, as well as fixed
equipment. You may power up to five belt packs with each intercom module. Refer to your
intercom manufacturer’s documentation for additional system details.
For operation with a belt pack, adjust the following:
• set the PORTS to w (powered)
• the TERM to ON
• center each of the INPUT gain, OUTPUT gain, and NULL controls
Readjust these controls to optimize performance as required.
Installing/Removing Intercom Modules
Before attemping any module exchange,the Adder II should be powered OFF .
Two multi-conductor cable harnesses are built into the Adder II and run behind the module
locations. These cables connect the intercom modules to power and signal sources. There
are AMP-MTA type connectors for each module on this harness; the connector fits all
module types.
• Signal is 8-pin
• Power is 2-pin
To change an intercom module in the assembly:
1 Turn the power OFF.
2 Remove the four screws that hold the module in the frame.
3 Gently pull the intercom module away from the frame until you can see and remove
the two cable harnesses.
4 Replace with new module and reconnect in reverse order.
5 Turn the power ON.
Fig. 2-26: Replacing Intercom Modules