Komatsu Galeo PC138US-8 Shop Manual page 295

10 Structure, function and maintenance standard
Input and output signals
070-18P(1) [CN-CM01]
Pin No. Signal name
1 Constant power supply (24 V)
2 Constant power supply (24 V)
3 GND (constant power supply)
4 GND (constant power supply)
5 Wake-up
Starting motor cut-out relay (for per-
6
sonal code)
7 GND (machine signal)
8 Hydraulic oil temperature
9 Fuel level
070-12P(1) [CN-CM02]
Pin No. Signal name
1 Engine oil pressure sensor
2 Engine oil level sensor
3 Radiator coolant level sensor
4 Air cleaner clogging sensor
5 Swing lock switch
6 Spare
070-18P(2) [CN-CM03]
Pin No. Signal name
For communication terminal, RS232C
1
CD
For communication terminal, RS232C
2
RXD
For communication terminal, RS232C
3
SG
GND (communication terminal con-
4
trol signal)
Communication terminal selection
5
signal
For communication terminal, RS232C
6
RTS
For communication terminal, RS232C
7
TXD
For communication terminal, RS232C
8
DTR
For communication terminal, RS232C
9
DSR
070-12P(2) [CN-CM04]
Pin No. Signal name
GND (peripheral equipment power
1
supply)
2 Peripheral equipment control signal
GND (for peripheral equipment,
3
RS232C)
4 For peripheral equipment, RS232C TXD
For peripheral equipment, RS232C
5
RXD
6 Reserved
B60-8P [CN-CM05]
Pin No. Signal name
1 Camera power supply (8 V)
2 Camera NTSC signal 1
3 Camera NTSC signal 2
4 Camera NTSC signal 3
PC138US, USLC-8
Input/output
Pin No.
signal
Input 10
Input 11
— 12
— 13
Input/output 14
Output 15
— 16
Input 17
Input 18
Input/output
Pin No.
signal
Input 7
Input 8
Input 9
Input 10
Input 11
Input 12
Input/output
Pin No.
signal
Input 10
Input 11
— 12
— 13
Input 14
Output 15
Output 16
Output 17
Input 18
Input/output
Pin No.
signal
— 7
Output 8
— 9
Output 10
Input 11
— 12
Input/output
Pin No.
signal
Output 5
Input 6
Input 7
Input 8
Signal name
Engine coolant temperature
Battery level
GND (machine analog signal)
Lamp switch
Starting switch ACC signal
Starting switch C signal
Preheat
USB power supply (5 V)
GND (USB power supply)
Signal name
GND (machine signal)
CAN terminal signal
CAN_H
CAN_L
USB data (–)
USB data (+)
Signal name
For communication terminal, RS232C
CTS
For communication terminal, RS232C
RI
GND (communication terminal power
supply)
Communication terminal status signal
CH1
Communication terminal power sup-
ply control signal
Communication terminal control sig-
nal CH1
Communication terminal control sig-
nal CH2
Communication terminal status signal
CH2
Communication terminal power sup-
ply (12 V)
Signal name
Reserved
Reserved
Reserved
Reserved
Reserved
Peripheral equipment power supply
(12 V)
Signal name
GND (Camera power supply)
GND (Camera signal 1)
GND (Camera signal 2)
GND (Camera signal 3)
SEN02553-01
Input/output
signal
Input
Input
—
Input
Input
Input
Input
Output
—
Input/output
signal
—
—
Input/output
Input/output
Input/output
Input/output
Input/output
signal
Input
Input
—
Input
Output
Output
Output
Input
Output
Input/output
signal
—
—
—
—
—
Output
Input/output
signal
—
—
—
—
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