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1.4.4
Facility connections (P3)
External devices are connected to P3 as shown in the table below.
Be sure that the cables are not longer than 1 meter (EMC requirements).
Facility
connector P3
pin 1
pin 2
pin 3
pin 4
pin 5
pin 6
pin 7
pin 8
pin 9
pin 10
pin 11
pin 12
pin 13
pin 14
pin 15
pin 16
* Please refer to "RX Audio Inhibit on PL Detect" and "Console Tx Inhibit on Busy Channel"
described in the 'Functional Description and Applications' manual.
Installation and Programming Guide
Front view of connector P3
15
16
Table 1-3 Facility Connections
Signal name
SPK-
Speaker signal negative from radio 1
F-MOD
Modulation to radio 1 or 2
R2-PTT
PTT to radio 2
GPO
Special Function
radio 1
R2-FMOD
Flat modulation to radio 2
GROUND
Ground reference from radio 1 and 2
F-CSQ/PLD
Buffered CSQ or PL/DPL detect signal from radio 1
R1-GPI
Wildcard/parallel channel control to radio 1 and 2
F-RXAF
Buffered Receive audio from radio 1
R1-GPI/O
Wildcard/parallel channel control to radio 1 and 2
+12VFUS
Power to facility devices, same as to CP6576
HSHOOK
Buffered Hook signal to radio 1
RSSI
RSSI signal from radio 1
SPK+
Speaker signal positive from radio 1
1
2
Signal description
*
: CSQ or PL/DPL Detect from
Installation
1-5
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