I went into work early again -- it's a great advantage to be able flex time as required by the job. Grace had fixed all but four troubles in the '81 building. Of the four left one is an unplugged phone, one is a vacant position, and the last pair are side by side -- often a sign of common trouble. So I go to work on that pair.
Remove the floor cable from the CPC (dropping 12 circuits which is why I haave to off-shift), the pigtail from the equipment, and undo my addition. Both sets are still down. Bypass the line fuses at the desk, one comes up, the other is still bad. Replace the telephone set of the bad one and it comes up. Trouble number 1: terminal went bad.
Reconnect through the fuses,set is down again. Pull the fuse pack (8 fuses, one for each wire of the RJ48 connector), use my VOM to find and replace the blown fuse, on both positions. Both up. Trouble number 2: blow fuses.
Pull the cable off the equipment, connect on CPC. Connect pigtail from equipment to CPC. Ten sets good, the same two go bad again. Remove the CPC from the picture. Still bad. Replace the fwo foot long 25 pair telephone cable (the pigtail.) Sets good. Put CPC back in, still good. Trouble number 3: a bad extension cable (first I can recall in 36 years.)
Posted by at January 21, 2004 05:25 PM