Hitachi S10mini Hardware Manual page 79

6.1.2 Test/maintenance program (T/M)
T/M is a program for J.NET module maintenance check and can be started automatically due to any
power failure and recovery after the MODU No. and BIT RATE switches have been set.
No. MODU No. BIT RATE
1 8
9
2 8
9
3 8
9
4 8
9
5 8
9
6 8
9
7 8
9
8 8
9
6.1.3 Hardware configuration for T/M operation
• T/M No.1 to T/M No. 4 (cabling unnecessary)
8 Internal loopback communication (main module)
Internal loopback communication (sub-module)
9 Internal memory write/read/compare in J.NET module
(main module)
Internal memory write/read/compare in J.NET module
(sub-module)
A CPU memory function check (main module)
CPU memory function check (sub-module)
B Interrupt function check (main module)
Interrupt function check (sub-module)
C No. 2/3/4/6 combination check (main module)
No. 2/3/4/6 combination check (sub-module)
D External loopback communication (main module)
External loopback communication (sub-module)
E NET1 external loopback communication (main module)
NET1 external loopback communication (sub-module)
F NET1/NET2 external loopback communication (main module)
NET1/NET2 external loopback communication (sub-module)
Power
CPU J.NET
supply
Description
6-3
6 MAINTENANCE
Cabling
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Necessary
Necessary
Necessary
Necessary
Necessary
Necessary
Necessary
Necessary