12
Command Summary
4.3
RS422 Model
RS422 Header
Figure 13: RS422 Header
Table 8: RS422 Pinout
Pin Function
1
Gnd
2
Rx (Y)
3
Inv Rx (Z)
4
Inv Tx (B)
5
Tx (A)
6
Vcc
The six pin RS422 interface header of the GLK24064R-25-1U-422/GLT24064R-1U-422 offers power and
ground connections as well as two differential pair communication lines. Regular and inverted lines are
provided for both receive and transmit signals. Power is supplied locally to the regular or –V variants
while the –VPT can receive power over a distance. The Tyco 282834-6 style header is most suited to a
simple wire connection.
Alternate Power Connector
Figure 14: Alternate Power Connector
Table 9: Alternate Power Pinout
Pin Function
1
Vcc
2
Gnd
3
Gnd
4
NC
The Alternate Power Connector provides the ability to power the GLK24064R-25-1U-USB/GLT24064R-
1U-USB using a second cable. The Tyco 171825-4 style header is particularly useful for connecting to an
unmodified floppy power cable, a 171822-4 for example, from a PC power supply for a simple bench
power solution.
