Bailey infi 90 NIMP01, Instruction

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REPAIR/REPLACEMENT PROCEDURES
MODULE REPLACEMENT PROCEDURES
4 - 2 I-E96-401A
®
Follow Steps 1 through 10 to replace the termination module.
1. Pull the termination module out of the termination mount-
ing unit (TMU) so that the RS-232-C and power cables are
accessible.
2. Turn off power to the cabinet and disconnect the +24 VDC,
common and ground wiring from the termination module.
Mark the cables according to their terminal assignment as you
remove them.
3. If there is a serial link to a station termination module, dis-
connect the serial link from TB4 and TB5. Mark the cables
according to their terminal assignment as you remove them.
The NIMP02 module does not have a serial link connection.
4. If there is a redundant termination module (an NIMP01 and
an NIMP02 module), disconnect the ribbon cables from the
sockets on the faulty termination module. Mark the cables
according to their connector assignments as you remove them.
5. Remove the RS-232-C cables from the DB-9 connectors on
the faulty termination module. Mark the cables according to
their connector assignments as you remove them.
6. When all cables are removed from the termination module,
pull it out of the TMU unit.
7. Align the replacement termination module with the guide
rails of its assigned slot in the TMU unit.
8. Partially insert the replacement termination module and
connect the RS-232-C cables, power wiring, serial link and rib-
bon cable.
9. After all cables and wires have been replaced, slide the ter-
mination module into the TMU unit until its card edge seats in
the card edge connector of the termination module cable on the
backplane of the TMU unit.
10. Return power to the computer, modem or diagnostic termi-
nal. Return power to the cabinet containing the termination
module.
Table 4-1. Recommended Spare Parts List
Description Part Number
Fuse, 1.0 A, 250 VDC 194776A11001
Jumper 1946984A1