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Chapter 4. Status Menu
61202156L2-1 TDU 120e User Manual 4-7
DS-1 (0.2) Menu Items (DS-1 Errors)
CRC
An asterisk displays under the CRC if there are CRC
errors in extended superframe format (ESF) mode. If the
DS-1 is configured for D4 Frame format, the terminal dis-
plays N/A.
BPV
An asterisk displays under the BPV if the DS-1 detects
bipolar violations.
SLIP
An asterisk displays under the SLIP if the DS-1 detects
frame slips. This is caused by multiple clock sources in
the application.
FER
An asterisk displays under the FER if the DS-1 detects
frame bit synchronization errors.
Remote Port
R
EMOTE
P
ORT
displays the status of activity on the Con-
trol In remote port. This is useful for troubleshooting
communication sessions, and for verifying cabling.
RX
Characters received at remote port
ID
Unit ID received at remote port
CRC
Correct CRC received
PC
Correct passcode received
TX
Characters transmitted from the remote port