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Trunks
PBX System Form 2c
Figure 3-1 Partially Completed Form 2c, System Numbering — Trunk Jacks
Jacks for Auxiliary Equipment
Use these instructions only if the system has auxiliary equipment such as
Music-on-Hold.
Auxiliary equipment can be connected only on loop-start (LS) or ground-start/
loop-start (GS/LS) jack types. You cannot use a trunk jack on an 800 DID, 100D,
or 400EM module for auxiliary equipment.
If you plan to use Music-on-Hold, designate a trunk jack for the music source
such as a radio, tape player, stereo system, or Magic on Hold equipment.
Trunk Connections 3-5
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