FLEXCOMM 2000
(P-2000/C-2000/RT-2000)
INSTALLATION MANUAL
Publication No. 150-049106 Page 45 of 56
Rev. F P-2000 Installation Manual
Nov 2007
8 - Mic 1 Input H
This pin is the high side of a differential microphone 1 input and provides a 150 ohm input
impedance for the crew microphone input. Normally this pin is connected to the audio panel.
Carbon microphone DC bias is provided by the unit. Standard input of 1kHz tone @ .25Vrms
should produce standard FM modulation out (3.0 kHz). Use shielded wire.
9 - Mic 1 Input L
This pin is the low side of a differential microphone 1 input. Normally this pin is connected to the
audio panel. Use shielded wire.
10 - Shield Ground
All shields of signals originating at the P-2000 or RT-2000 and terminating at other equipment
should be connected to this pin and left un-terminated at the other equipment.
11 - External ON Control
This pin is only used in a system that contains a C-2000. When this pin is grounded the unit will
turn on.
12 - Panel Lite Return
The pin provides the ground path for the lite buss input.
13 - Headset 2 Out H
This analog output provides the High side of the receive and sidetone audio output from FM-2
transceiver (Dual Mic Mode). Standard audio levels of 100 mW into 600 ohm load is provided
for standard modulation (1.0 kHz tone, 3 kHz FM Mod). This output is normally sent an audio
panel. This output must use shielded wire.
14 - Headset 2 Out L
This analog output provides the low side of the receive and sidetone audio output from a
transceiver. Normally this output is either grounded or sent to an audio panel. This output must
use shielded wire.
15 - Reserved Spare #1
This pin reserved for future use.
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Control Number (ECCN) 7E994. When exporting, diversion contrary to U.S. law is prohibited.
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