User guide

4-4 Solo E1 DSU User Guide—June 1998
4
Network Status
Network Status indicates any abnormal conditions present on the received
E1 signal.
DTE Loopback (full or fraction) Unit is in DTE loopback.
Net Loopback (full) Unit is in network loopback.
PLD Loopback (full or fraction) Unit is in payload
loopback.
Send User 1
(full or fraction) Unit is sending User 1 pattern.
Send User 2
(full or fraction) Unit is sending User 2 pattern.
Send 1:1
(full or fraction) Unit is sending alternate 1s and 0s pattern.
Send 1:2
(full or fraction) Unit is sending standard loopdown remote code
continuously.
Send 1:4
(full or fraction) Unit is sending standard loopup remote code continuously.
Send 1:7 (full or fraction) Unit is sending 1:7 pattern.
Send 3:24 (full or fraction) Unit is sending 3:24 pattern.
Send QRW (full or fraction) Unit is sending QRW code.
Send All 1s
(full or fraction) Unit is sending all ones signal.
Send All 0s
(full or fraction) Unit is sending all zeros signal.
LP UP Remote (full or fraction) Unit is sending loopup code to remote unit for 15 seconds.
LP DN Remote (full or fraction) Unit is sending loopdown code to remote unit for 15
seconds.
Table 4-2 Network Status
Condition Description
Normal operation No abnormal conditions exist.
Loss of Signal Unit
network signal is missing.
Loss of Frame Unit network frame is missing.
RAI Received Unit is receiving RAI.
CV Threshold Exceeded CV threshold exceeded.
CRC Threshold Exceeded CRC threshold exceeded.
UA1 Received Unit is receiving UAI.
Table 4-1 Unit Status (Continued)
Condition Description