COBHAM RT-7000 PMR User Manual

150-071724 Rev N
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Page 82 of 138
Pin(s)
Signal Name
Definition
27, 28
Mic 2 In Hi/Lo
These pins accept an audio input for Audio 2 (default radio in
slot 2) with the following characteristics: Input Impedance:
1000 Ω ± 10% maximum. : Input Impedance: 1000 Ω ± 10%
maximum. : Circuitry type: Differential. : Input Gain Selectable:
10 mW, 25mW, 100mW. : Rated input: 7.75 Vrms ±0.25 Vrms
(100mW) nominal from 600 Ω ±10% audio source
29, 30
External Radio 2 MIC
Hi/Lo
These pins accept an audio input for External Radio 2 (default
AMU) with the following characteristics: Input Impedance:
1000 Ω ± 10% maximum. : Input Impedance: 1000 Ω ± 10%
maximum. : Circuitry type: Differential. : Input Gain Selectable:
10 mW, 25mW, 100mW. : Rated input: 7.75 Vrms ±0.25 Vrms
(100mW) nominal from 600 Ω ±10% audio source
31
Reserved
Reserved
32
Audio 2 PTT IN_N
Grounding this pin enables Audio 2 Push-To-Talk function.
There is a Stuck MIC timer of 120s in order to timeout
continuous transmission on COM channels.
33
Audio 1 PTT IN_N
Grounding this pin enables Audio 1 Push-To-Talk function.
There is a Stuck MIC timer of 120s in order to timeout
continuous transmission on COM channels.
34
External Radio 2 PTT_N
Grounding this pin enables External Radio 2 Push-To-Talk
function. There is a Stuck MIC timer of 120s in order to
timeout continuous transmission on COM channels.
35
External Radio 1 PTT
IN_N
Grounding this pin enables External Radio 1 Push-To-Talk
function. There is a Stuck MIC timer of 120s in order to
timeout continuous transmission on COM channels.
36, 37
Remote Radio Control TX
HI/LO
These pins provide an RS-422 data signal to the RCDU or third
party control head.
38, 39
Antenna Control 1 TX
LO/HI
These pins provide an RS-422 control signal to the optional
tunable antenna 1.
40, 41
Jack 1 Out Hi/Lo
These pins provide an audio output from the audio system to
External Radio 1. This output is capable of adjustment from
2.5Vrms ±0.25 Vrms (10mW) to 7.75 Vrms ±0.25 Vrms
(100mW) into a 600 Ω load (except as noted)
42, 43
External Radio 1 MIC
Hi/Lo
These pins accept an audio input for External Radio 1 (default
AMU) with the following characteristics: Input Impedance:
1000 Ω ± 10% maximum. : Input Impedance: 1000 Ω ± 10%
maximum. : Circuitry type: Differential. : Input Gain Selectable:
10 mW, 25mW, 100mW. : Rated input: 7.75 Vrms ±0.25 Vrms
(100mW) nominal from 600 Ω ±10% audio source
44, 45
Jack 2 Out Hi/Lo
These pins provide an audio output from the audio system to
External Radio 2. This output is capable of adjustment from
2.5Vrms ±0.25 Vrms (10mW) to 7.75 Vrms ±0.25 Vrms
(100mW) into a 600 Ω load (except as noted)
46
Reserved
Reserved
47
Reserved
Reserved
48, 49
Audio 2 Out Hi/Lo
These pins provide an audio output to the audio system from
Transceiver 2. Assignment of a transceiver to Audio 2 is a
programmable option, default is to the transceiver in slot 2.
This output is capable of adjustment from 2.5Vrms ±0.25 Vrms
(10mW) to 7.75 Vrms ±0.25 Vrms (100mW) into a 600 Ω load
(except as noted)
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COBHAM RT-7000 PMR Specifications

General

Brand	COBHAM
Model	RT-7000 PMR
Category	Radio
Language	English