Nortel North American DMS-100 Instruction Manual page 260

Replacing an NTFX39 bulkhead splitter unit
29
30
31
32
33
At the modular supervisory panel
34
At the rear of the ISM shelf
35
36
DMS-100 Family NA100 Trouble Locating and Clearing Procedures Volume 2 of 2 LET0015 and up
Trouble locating and clearing procedures (continued)
bsy
OK
Repeat steps 24 to 28 for all magnetic tape drive ports provisioned on the
controller card.
To return to the IOC level of the MAP display, type
>QUIT
and press Enter.
Determine the state of the IOM.
If the state of the IOM
is M
is other than listed here
To manually busy the IOM controller card, type
>BSY IOC
and press Enter.
Example of MAP response:
bsy
OK
Repeat steps 3 to 32 for other IOM units configured on the splitter unit.
WARNING
Static electricity damage
To handle circuit cards, wear a wrist-strap that connects to a
wrist-strap grounding point of a modular supervisory panel
(MSP). The wrist-strap protects the cards against static
electricity damage.
Put on a wrist strap.
Locate bulkhead splitter unit and disconnect the four cable connectors (C05
to C08) from the harness. Disconnect the shrouded pin unit connections at
the rear of the splitter unit.
Note the pin unit positions.
Remove the nuts in the back of the splitter unit.
Do
step 34
step 32
1-245
(continued)