
54
6.0 ELECTRICAL CONNECTIONS
Figure 15. Connection to a Host Computer
Figure 14. HPB Electrical Connector Pin Assignments
HPB Mating Connector
Conxall (Switchcraft) P/N 6282-6SG-3XX Newark Stock no. 89F4115
HPB Connector
(pins - top view of HPB)
HPB Signal Name
1
Transmit
2
Receive
3
Case Ground
4
Common Ground (GD)
5
DC Power In
6
Power Control
1
2
3
4
5
6
Make all common
connections at this
end of the cable
Note: If computer signal ground is tied to conduit ground,
do not ground power supply output. (Common
system should be grounded at only one point)
1
Transmit*
Receive*
Case Ground
Power and Signal
Common
Power Control
conduit gnd.
HPB
0 or 5 V
DC Power
6 to 26 V
+
-
2
3
5
RS-232 Receive
RS-232 Transmit
Signal Ground
Host Computer
2
3
4
5
6
D9
pin
D25
pin
3
2
7
DC Power In
*TTL Signal Levels
RS232
TTL