Pin Function Description
15 GPIO_7 4 Level Analogue Input, 33k to 5.0V PU
16 1_WIRE 1-wire
®
bi-directional serial bus,
Dedicated to power-up detection of IMPRES Visor Mic (input
MIC_HF1)
17 REAR_AUDIO Handset VOL controlled audio output,
Min RL = 150 Ohm unbalanced,
Connected to GCAI Pin 3 Mobile Microphone Port Connector
18 GND GND,
Connected to GCAI Pin 5 Mobile Microphone Port
19 MIC_MMP_REAR Rear microphone input MIC_MMP_REAR,
Input 80 mV rms, Bias voltage 7.7 V,
Connected to GCAI Pin 7 Mobile Microphone Port
20 GPIO_4 GPIO, Hook Input,
Connected to GCAI Pin 9 Mobile Microphone Port.
21 SPK + Speaker positive line
WARNING: Do not ground!
22 SPK – Speaker negative line
WARNING: Do not ground!
23 MIC_HF2_GND Ground for external MIC_HF2
24 MIC_HF2 Second external microphone input MIC_HF2,
Nominal sensitivity 80 mV rms, CPS selectable bias voltage 7.7 V or
2 V
25 RM_ON Turn on Control Head through accessories
5.8
Connecting Cables
5.8.1
Motorcycle Mount TELCO Cable
Motorcycle Mount TELCO Cable (to connect Motorcycle Mount Enhanced Control Head to the Remote
Head Enhanced/Data Expansion Head Enhanced). Part Number: PMKN4030_, Length: 2.3 m (7.55 ft)
Figure 66: Motorcycle Mount TELCO Cable
68015000181-LB
Chapter 5: Connectors and PIN Assignment
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