JK Audio ComPack User Manual page 9

Wireless Phone Headset Interface
4.
This interface works with any wireless phone or notebook that accepts
standard third party headsets and earpieces. Your product has been
supplied with a 1/4" TRS to 3.5mm TRRS interface cable. While the majority
of current wireless phones use a 4-conductor, 3.5mm TRRS headset jack,
some older phones use a 2.5mm TRS headset jack. If your phone uses this
smaller 2.5mm headset jack, you may contact our support department to
request a compatible interface cable.
When using the wireless interface, it is important to keep your wireless
telephone 12" - 24" away from the ComPack and any microphone or
headphone cables. This will help prevent unwanted RF noise from entering
the unit.
Universal PBX Handset Interface
5.
If you do not have access to an analog phone line or if the phone system is
a digital or analog PBX, ISDN, VOIP or a key telephone system, you can use
the built-in handset interface. Disconnect the telephone handset from the
coily cord and plug the cord into the ComPack <Universal PBX Handset
Interface> jack. Dialing must be done with the existing telephone. Make sure
to leave the telephone handset off hook or your call will be disconnected. Do
not connect a handset to the ComPack; you must talk through your mic.
Handset Type Selector Switch
6.
Select the best handset type.Trial and error works faster than a chart of
handset types, but this basic description may help.
A=Electret, B=Carbon, C=Dynamic
Line Input
7.
The 3.5mm input is a mono, line level input. This input can be used at the
same time as the XLR input.
XLR Input Mic/Line Selector
8.
Selects whether the female XLR is to be used as a mic level or
line level input.
Male XLR Function Selector
9.
Selects how the male XLR jack will be used.
Set to <Phone Mix Output> for a mix of the telephone caller and the
microphone or line input from the female XLR jack.
Set to <Intercom Link> to provide bidirectional audio for use with your
intercom beltpack system.
9 VDC Power Jack
10.
ComPack is powered by one 9V battery or the included AC adapter. The AC
adapter is for powering the unit only, it does NOT charge the battery. The
battery is bypassed when power is supplied by the AC adapter. The battery
should be removed if it is not going to be used for extended periods of time.
Getting to Know Your ComPack
Controls & Indicators
5 5