(PM) Yellow Alarm problems on Line1 of PM-3

Thomas M. Bridge (tbridge@ncfcomm.com)
Thu, 4 Feb 1999 22:18:38 -0600

We recently installed a new Channelized T-1 to one of our PM-3's. It has
not worked since installation, and continues to show a Yellow alarm. I have
checked and rechecked the wiring, and the phone company (US West) that the
T-1 checks out without any problems. Below is the listing on the line. Any
ideas where I should look next?

sh line1
---------------------- line1 - T1 Inband DS0 ---------------

Status: UP Framing: ESF Encoding: B8ZS PCM: u-law

Signaling: Trunk E&M wink start

Receive Level: +2dB to -7.5dB

Alarms Violations
----------------------------- -----------------------------
Blue 0 Bipolar 0
*Yellow 1 CRC Errors 0
Receive Carrier Loss 0 Multiframe Sync 0
Loss of Sync 0

*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
Thomas M. Bridge | NCF Communications, Inc.
ISP - NE Nebraska | 1909 Vicki Lane, Suite 104
Voice - (402) 371-6897 | P.O. Box 77
FAX - (402) 644-8402 | Norfolk, NE 68702-0077

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