GAI-Tronics ITR2000A, User And Installation Manual

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9 04/15
Operation
Introduction
The ITR2000A Tone Remote Desk Set provides radio system control from a remote location. The
ITR2000A control tones are sent to the remote adapter through a telephone line, and are used to control
radio functions such as transmit, channel change, and monitor.
Receive audio from the radio system is sent to the ITR2000A from the radio via the same telephone line
connection. The
F1
,
F2
,
F3
, and
F4
buttons allow selection of four different base station frequencies.
These frequencies are dependent on your radio’s capabilities.
The ITR2000A is compatible with tone adapters that accept standard EIA tone keying sequences.
Front Panel Buttons
TRANSMIT Button and LED
Press
TRANSMIT
to place the desk set in the transmit mode and initiate voice transmissions. The
TRANSMIT
LED illuminates and the
MONITOR
LED extinguishes. See “Initiating Calls” section below.
TRANSMIT
is also used in programming functions. See “Level Adjustments and Diagnostics” in the
“Installation” section of this manual.
MONITOR Button and LED
Press
MONITOR
to place the desk set, adapter, and the radio in the monitor mode (CTCSS/CDCSS
disable). The
MONITOR
LED remains lit while in the unit is in the monitor mode. The ITR2000A
remains in the monitor mode until a call is initiated (PTT) or guard tone is detected on the line.
MONITOR
is also used in programming functions. See “Level Adjustments and Diagnostics” in the
“Installation” section of this manual.