–
Pin No. Name Description
21 Ground Ground cable
22
GP5_7
Input/output
23 GP5_6 Digital input/output
24 AUX Audio Out
1
Analog output
25 AUX Audio Out
2
Analog output
26 Ign Sense Analog voltage input
J404 (Front Panel Interface)
Pin No. Name Description
1 INT_MIC Audio input
2 MIC_GROUND Audio input (grounding)
3 ACC_IO1 Accessory identification interface 1
4 USB_VBUS USB power supply
5 HOOK HOOK
6 PTT PTT
7 USB_D- USB data cable D-
8 USB_D+ USB data cable D+
9 ACC_IO2 Accessory identification interface 2
10 UART2_RXD_A Volume control port
11 UART2_TXD_B /
12 EXTERNAL_AUDIO Audio signal output by accessory (mobile radio)
13 SPKR1+ Speaker audio signal cable+
14 SPKR1- Speaker audio signal cable-
15 5VD Power supply
16 PRST Reset signal
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