Motorola solutions MCC 7100 IP, Руководство по установке и эксплуатации

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In the local logging recorder port, audio out to logger pins are pins 4 and 5. This pinout is the same as
for the Voice Processor Module (VPM) local logging recorder port.
Telephone/Headset Port
The telephone/headset port allows an external telephone set to be connected to the dispatch console.
The dispatch operators can then use their headset to communicate on both the radio system and the
telephone set. The port provides the following inputs and outputs:
• A 600-Ohm analog audio output for the microphone audio from the headset
• A 600-Ohm analog audio input for the audio received from an external telephone
• An input buffer for the Off-Hook signal from the external telephone
• An input buffer for an Auxiliary Jack Sense signal from the external telephone
When a dispatch console senses a dry closure on the Off-Hook input buffer, it removes the selected
radio audio from the headset earpiece and routes it into the appropriate speakers. Then it routes any
audio appearing at the telephone/headset port audio input to the headset earpiece. The dispatch
console also routes the headset microphone audio to the telephone/headset port audio output, which
allows the dispatch console user to communicate hands-free on the telephone set.
When the dispatch console senses a dry closure on the Auxiliary Jack Sense input buffer, it ignores
any closures on the Off-Hook input buffer. This system causes the headset to work with the radio
system instead of the external telephone system, and allows the dispatch console headset to be used
for radio operations when another person is staffing the telephone set.
If the dispatch console user transmits on any radio resources while the Off-Hook signal is active, the
headset microphone is rerouted to the radio system for the duration of the transmission. When the
transmission ends, the headset microphone is routed back to the telephone/headset port audio output.
The headset earpiece audio routing is not changed during the transmission, so the dispatch console
user can hear the audio received on the telephone.
The telephone/headset port allows a dispatcher to use a single headset to communicate on both the
radio system and a telephone system, such as a 911 system.
NOTICE: Do not connect the USB Audio Interface Module (USB AIM) to the telephone network
directly.
The ability to communicate with a 911 system is available even when the USB AIM cannot
communicate with the MCC 7100 IP Dispatch Console computer.
Table 16: External Phone Interface Connector Pinout
This table presents external phone interface connector pinout. The pinout is the same as for Voice
Processor Module (VPM) phone port.
Pin Number
Description (+) and (–) symbols indicate pin
polarity
1 Jack Sense In (–)
2 Jack Sense In (+)
3 Audio In from Phone System (–)
4 Audio Out to Phone System (–)
5 Audio Out to Phone System (+)
6 Audio In from Phone System (+)
7 Off Hook In (+)
Table continued…
MN000672A01-E
Chapter 4: USB Audio Interface Module
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