Hitachi EH-150 Series - Preparation before Self-Check

Chapter 8 Daily and Periodic Inspection
8 - 4
8.3.2 Preparation before self-check
The loop back connector for port 1(RS-232C), port 2(RS-232C, RS-422 / 485) are required to perform self-check
mode. Wiring of a loop back connector is shown in the following figure.
(1) For port1 (Same connection for RS-232C and RS-422/485)
(2) For port2 (for RS-232C)
(2) For port2 (RS-422/485 port)
« Note »
Please prepare loop back connectors.
8
1



5 - 6
4 - 7
3 - 8
EH-SIO side
8
1



5 - 6
4 - 7
3 - 8
EH-SIO side
6
1



2 - 4
1 - 3
Attached connector