IBM System/370 145 Operating Procedures Manual page 68

POWER-OFF PROCEDURES
Integrated Storage Control (lSC) Feature Installed
• This procedure has the two-channel-switch special
feature included •
• I/O INTERFACE Band MULTITAG switches are
non-functional on a single channel ISC application.
11
nform the operator of the other system that the
ISC feature is to be removed from use.
2
Move the I/O INTERFACE A and B (switches)
to the OFF position.
3
Wait for the I/O INTFS DSBLD indicator to turn on.
B
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4
Press the POWER OFF key.
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Note:
If the system is powered-off, do not turn power back
on for at least 10 seconds. If the POWER-ON key is
pressed before 10 seconds have elapsed, a power
check may occur. This power check condition can be cor-
rected by pressing the CHECK RESET key.
Operating Procedures 67
I