Motorola solutions MCC 7100 IP, Setup And User Manual

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• For adjusting the level of the received radio audio
• For adjusting the level of the received telephone audio
A small dimple is molded into the headset jack housing near the telephone volume control so that a
dispatcher can tell them apart without having to look at them. The headset jack allows the dispatch
console users to use headsets, which decreases the ambient noise in a control room and reduces the
effect of any ambient noise on dispatch console transmissions. This solution improves the quality of the
audio being transmitted from the control room and allows the dispatch console users to hear received
audio more clearly.
When a headset is plugged into a headset jack, the selected receive audio is typically removed from
the speakers and routed to the headset earpiece.
NOTICE:
A radio resource may be configured so its selected receive audio remains in a
speaker even when a headset is in use. If two headsets are connected to a dispatch console,
the same audio is heard in the earpieces of both headsets.
If a telephone set connected to a dispatch console telephone/headset port is taken off hook while a
headset is connected to a dispatch console, the selected radio audio is removed from the headset
earpiece and routed to the appropriate speakers. The received telephone audio is routed to the
headset earpiece. The headset microphone becomes live and its audio is routed to the external
telephone set. In this way, a dispatch console user can talk and listen on the telephone set in a hands-
free full-duplex mode.
The headset jack is mounted either underneath a writing surface or on top of a writing surface. The
headset jack is designed with a low profile and rounded edges to minimize “knee banging” when
mounted underneath a writing surface.
Configuring the Headset Jack Box for 4-Wire Operation
Prerequisites: The headset jack box is configured for use with a 6-wire headset as shipped. If a 4-wire
headset is used, either cut a wire jumper or reposition DIP switches inside the headset jack box. With
headset jack box disconnected from equipment, remove the four screws holding the top and bottom
housing together; the access for the T10 Torx screws is on the bottom of the headset jack box.
For proper operation of the headset microphone audio to be presented to the external telephone caller,
both the headset jack box and the headset base must be 4-wire or both must be configured for 6-wire,
and the parameters in the Zone Configuration Manager (ZCM) must match. If you change the ZCM,
ensure that you perform the
Commit operation.
Procedure:
1 Headset Jack Box with NO DIP switches on the underside of the headset jack box:
Perform the following actions:
a
Separate the top and bottom housing exposing circuit board and the tip and ring contacts.
b Identify the brown wire connected between J3 on the circuit board and the switch contacts.
c
Cut the brown wire.
d
Reassemble the jack box.
2 Headset Jack Box with the two DIP switches on the underside of the box: Configure Switch
2:
• For 6-wire operation: S2-1 = ON, S2-2 = ON.
• For 4-wire operation: S2-1 = OFF, S2-2 = OFF.
CAUTION: Do not reposition other switches in the headset jack box, because doing so
adversely affects operation of the headsets.
MN000672A01-E
Chapter 4: USB Audio Interface Module
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