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2.2.2 External Interface
G600 has 2 external connectors, a multiway connector for use with a handsfree and data and additional contacts
for the charging the battery pack while in the desk top charger. Both interfaces are electrically and mechanically
compatible with G600.
Handsfree and data connector (J001)
PIN
Signal
Direction
(from HH)
Description
1
GND
Power supply and digital signal ground
2
TX_AUDIO
Input
TX audio
3
AUDIO_GND
Audio signal ground
4
nHF_ON
Output
Handsfree control signal
(Lo=ON, Hi-Zo=OFF)
5
nADP_SENSE
Input
Data adaptor select signal
6
SERIAL_UP
Input
UART up (9600, 33.8kbps)
7
SERIAL_DOWN
Output
UART down (9600, 33.8kbps)
8
EXT_PWR
Input
Power for charging
9
GND
Digital signal power supply ground
10
RX_AUDIO
Output
RX audio signal (analogue)
11
nRADIO_MUTE
Output
Radio mute
(Lo=mute, Hi-Zo=Not muted)
12
nHF_SENSE
Input
Handsfree select signal
(Lo=Handsfree mode)
13
nFLASH_WE /
PERF_PWR_ENBL
Output
Flash write enable and enable external peripheral
(Lo=Enable flash write)
14
IGNITION
Input
Condition of ignition
(Lo=off, Hi=on)
15
nLOGIC_PWR
Output
Handheld state
(Lo=off, Hi=on)
16
PERF_PWR /
PA_ON
Output
Power amplifier control signal and external peripheral
power supply
Charge Contacts
PIN
Signal
Description
20
EXT_PWR
Power for charging
21
GND
Ground
Issue 1
Section 2
MCUK980101G8
Revision 0
2 - 4
Technical Guide
INTERFACES AND TEST POINTS