Alcatel-Lucent OmniPCX Office Installation Manual page 107

4.7.2.2 Jumpers
The jumper in a gray background is factory installed.
To configure the V24/CTI Interface Module, open the device with the 2 screws located under
the module.
If the jumper is positioned for "stand-alone" operation, an associated set cannot work.
If the jumper is positioned for "associated UA set" operation, the associated set is mandatory,
the Interface Module cannot work without it.
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