MN007262A01-AD
Chapter 5: Accessories Installation
Pin No.
Pin Name
4
Ext Alarm
5
GPIO_10
6
GPIO_3
7
Ground
8
GPIO_4
9
Emergency SW
10
Ignition Sense
11
Public Address
12
GPIO_7
13
SWB+
14
GPIO_8
15
GPIO_9
16
Speaker+
17
USB D+
18
USB D-
19
VBUS
20
USB Ground
5.1
Emergency Pushbutton or Footswitch Installation
Mount the emergency pushbutton (Motorola Solutions part number RLN4857_) or the footswitch
(Motorola Solutions part number RLN4836_R) using the hardware that comes with the kit. Press the
terminal into the accessory connector housing. Connect the emergency switch wires to pins 9 and 7.
Route the finished cable from the switch location to the control head location.
1
Pulling this line to ground activates the Ext Mic Audio input.
2
GPIO_3 must be grounded if external visor microphone is connected.
3
See Wiring Diagrams and Power Cable chapters for wiring information.
4
GPIO_9 must be grounded if external speaker is connected.
5
CAUTION: Applying greater than 5 V to the pin can cause damage to the circuit.
30
Pin Function
Reserved for future supported and
approved accessories.
Reserved for future supported and
approved accessories.
5 V Level GPIO, External Micro-
2
phone Detection
Ground
Reserved for future supported and
approved accessories.
Emergency Switch Input
3
Ignition Sense Input
Audio output for external speaker.
Reserved for future supported and
approved accessories.
Reserved for future supported and
approved accessories.
Reserved for future supported and
approved accessories.
5 V Level GPIO, External Speaker
4
Detection
Speaker + (3.2 Ω minimum impe-
dance)
Universal Serial Bus Data +
Universal Serial Bus Data -
USB Power (5 V from USB Cable)
Universal Serial Bus Ground
5
5
5