Zhone Technologies, Inc. @Zhone Way, 7001 Oakport St., Oakland, CA 94621 (510) 777-7000 Fax: (510) 777-7001
Zhone Tech Tip TT#33
February 15, 2011
900 Power Cable Maintenance
This procedure is provided to our customers experiencing intermittent and unexplained
PSU alarms that raise and clear on their own. Please refer to Zhone Field Advisory
bulletin 20071206-2 FAB – IMACS Power Supply OOS Alarm in order to clear these
alarms.
This Tech Tip is written to describe the process used to clean the power cable on the
IMACS-900 shelf. Please refer to Zhone Tech Tip #34 for the proper procedure if
maintenance to clean the power cable is required on an IMACS-600 or IMACS-800 shelf.
The IMACS-900 uses a 18-pin wiring harness to connect the power PCB to the shelf
PCB. The cable is shown in Figure 1.
Figure 1: Power Cable IMACS-900
This procedure is provided to augment the Field Advisory bulletin 20071206-2 FAB –
IMACS Power Supply OOS Alarm. This Tech Tip provides greater detail on the item
under the section for Valid Alarms of that bulletin, and specifically the note that
indicates:
•
Bad physical connection on the wiring harness cable due to oxidation or
poor environmental conditions. Remove wiring harness, clean with
degreaser and alcohol solvent, apply NO-OX-ID lubricant and reconnect
wiring harness.
NOTE: This procedure requires that the IMACS be powered-down to perform this
service. Be sure to remove all power sources from the IMACS before beginning this
