Motorola GM Series Service Manual page 22

2-6
CH ACT
CH KP ID
CH REQUEST
CLK
CNTLVLTG
CNTR AUDIO
COL x
CSX
DATA
DC POWER ON
DISCAUDIO
ECLK
EE CS
EMERGENCY CONTROL
EXP BD REQ
EXP1 CS
EXP2 CS
EXT KP COL
EXT KP ROW
EXT MIC
EXT SWB+
F1200
FECTRL 1
FECTRL 2
FLASH CE
FLASH OE
FLAT RX SND
FLAT TX RTN
FLT A+
GP x IN
GP x IN ACC y
GP x IN OUT ACC y
y
GP x OUT
GP x OUT ACC y
GPIO
HANDSET AUDIO
HOOK
HSIO
IF
IGNITION CONTROL
Channel Activity Indicator Signal (Fast Squelch)
Control Head Keypad ID (Data) Lines
Control Head Request from Control Head *P
Clock Signal
PA Power Control Voltage
Audio Lines of the Controller
Keypad Matrix Column x
Chip Select Line PCIC / FRACN
Data Signal
Electronic Switching On or Off of the Radio's Voltage Regulators
Audio Output Signal from the Receiver IC
Clock (not used)
EEPROM Chip Select
Emergency Line to switch on the Radio's Voltage Regulators
Service Request Line from Expansion Board
Expansion Board Chip Select 1
Expansion Board Chip Select 2
External Keypad Matrix Column Signal
External Keypad Matrix Row Signal
External (from Accessory Connector) Microphone Input
External Switched 13.2V Supply Voltage
Interrupt Line from ASFIC CMP
Control Voltage for Front End Filter
Control Voltage for Front End Attenuator Switch
Flash Chip Select
Flash Output Enable
Option Board Audio Output Signal
Flat TX Input from Option Board and Accessory Connector
Filtered 13.2 V Supply Voltage
General Purpose Input x
General Purpose Input x from Accessory Connector Pin y
General Purpose Input /Output x from Accessory Connector Pin
General Purpose Output x
General Purpose Input x from Accessory Connector Pin y
General Purpose Input Output Lines
Handset Audio Output
Hang-up Switch Input
High Speed Clock In / Data Out
First Intermediate Frequency Signal
Ignition Line to switch on the Radio's Voltage Regulators
MAINTENANCE