PM3 Receive Levels

John Sulima (jsulima@riconnect.com)
Thu, 28 Aug 97 16:41:56 Eastern Daylight Time

I just set up a PM3 at a remote POP. One of the T-1s is a frame connection to
another ISP. Line1 is a Channelized T-1, both from Southern New England Telephone.

During a tech call, a LE support person suggested that I have SNET adjust the receive
levels on the lines (see following). When I called SNET, they claimed that the
T-1s were close enough to the CO so they wouldn't need repeaters and that
they were built on HDSL Pairgains. IOW, they claimed the levels were within
spec to the smartjacks.

Is my cabling suspect for the low levels? I'm using standard CAT 5, about
30 feet from the demarc.

---------------------- line0 - T1 1.536 Mbps ---------------

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

Receive Level: -15dB to -22.5dB

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

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

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

Signaling: Trunk E&M wink start

Receive Level: -15dB to -22.5dB

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

TIA,

John