COUPLING 5294973 - Caterpillar

Nomenclature for CAN lines and COM lines may vary from one device to another. For example, COM2 TXD and COM2 RXD from the GPS radio do not map directly to COM2 TXD and COM2 RXD on the Display. Always refer to the AccuGrade electrical schematic for each machine in order to accurately follow wiring connections.
Table 1
Contact Description Of AccuGrade Display    
A     (not used)    
B     SWITCH INPUT 0    
C     SWITCH INPUT 3    
D     BAT +    
E     SWITCH GND    
F     BAT -    
G     (not used)    
H     SWITCH INPUT 4    
J     CAN O -    
K     CAN 0 +    
L     CAN 1 +    
M     CAN 1 -    
N     RS-232 TXD 2    
P     RS-232 RXD 2    
R     RS-232 SGND 2    
S     RS-232 SGND 1    
T     RS-232 RXD 1    
U     RS-232 TXD 1    
V     SWITCH INPUT 5    
W     + BATTERY    
X     WAKEUP    
Y     SWITCH INPUT 1    
Z     SWITCH INPUT 6    
AA     RCA LINE OUT HI    
BB     RCA LINE OUT LO    
CC     CDL -    
DD     CDL +    
EE     CAN SHIELD    
FF     RS-232 RTS 0    
GG     RS-232 CTS 0    
HH     RS-232 RXD 0    
II     RS-232 TXD 0    
JJ     RADIO SWITCH    
KK     SWITCH INPUT 2    
MM     GROUND    
NN     AWAKE RETURN    
PP     AWAKE    
QQ     RE-232 SGND 0    
RR     (not used)    
Table 2
Contact Description Of GPS Receiver    
A     COM GND    
B     GROUND    
C     CAN 2 -    
D     CAN 2 SHIELD    
E     (spare)    
F     COM 1 TXD    
G     BATTERY +    
H     (spare)    
J     COM 1 RXD    
K     CAN 1 SHIELD    
L     CAN 1 -    
M     ID PIN    
N     CAN 2 +    
P     CAN 1 +    
R     COM 2 RXD    
S     COM 2 TXD    
Table 3
Contact Description Of GPS Radio    
A     + BATTERY    
B     GROUND    
C     COM 2 TXD    
D     COM 2 RXD    
E     CAN 1 +    
F     COM 1 TXD    
G     COM 1 RXD    
H     CAN 1 -    
Table 4
Contact Description Of Slope Sensor    
A     + BATTERY    
B     SELECT A    
C     CAN 1 +    
D     CAN 1 -    
E     SELECT B    
F     GROUND