Tone Remote Control Operation; Feature Description; Figure 4-2. Apx 7500 Consolette To Mcc7500 Topology - Motorola APX 7500 Detailed Service Manual

4-6
APX 7500
Consolette
To configure this, the Consolette Configuration Codeplug should select Hardware PTT as the PTT
input associated with the Wireline.
When the balanced Wireline Interface is unmuted to receive audio, the associated logic output
(CHAN_ACT_RELAY_OUT) on the DB25 on the rear panel will be driven with the signal that is
provided on CHAN_ACT_RELAY_IN. This signal passes through a relay on the Consolette. This is
especially useful when the customer's setup has a signal with a high voltage or if the customer wants
to switch in a ground signal. The relay circuitry has a maximum load voltage of 350V and a maximum
load current of 120 mA.

4.12.2 Tone Remote Control Operation

4.12.2.1 Feature Description

The Wireline Interface can be used in conjunction with a Tone Remote Control (TRC) Deskset or
Console. This interface consists of differential audio signals carrying transmit audio and control tones
from the deskset/console and receive audio to the console. The Consolette analyzes incoming
(transmit) wireline audio for the presence of particular guard and function tone frequencies and
interprets them as commands.
The Consolette supports the following remote control functionality via Tone Remote Control:
• Channel Select
• Secure On/Off
• PTT Press/Release
• Monitor
• Receive Voice
• Transmit Voice
Based on the received commands, the Consolette in turn controls the internally-housed mobile radio
appropriately.
NOTE: Enabling and disabling Scan operation is not supported from a Tone Remote Deskset. Scan
operation enabled in the Consolette is not recommended when used with a Tone Remote
Control Deskset. Scan operation in the radio can cause the radio to unmute to audio on an
unselected channel. There is no indication at the Tone Remote Deskset user of the radio's
scanned-to channel information. Any resulting dispatch communications could unintentionally
get transmitted on an unselected channel.
September 9, 2011
Wireline (audio)
CCGW with
E&M
PTT
Chan_Act_Relay_Out
Distance: 50 feet

Figure 4-2. APX 7500 Consolette to MCC7500 topology

Feature Operation: Wireline Interface
MCC7500
X-Zone
Distance: distance of LAN capability
68009482001