Esf T1 Csu Dte Loopback Connection; Acculink 3150 Csu Front Panel - AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual

100D Module Problems
DTE LOOPBACK
DIAGNOSTIC
INTERFACE
LOCAL
POWER
Figure 4–9. ESF T1 CSU DTE Loopback Connection
Paradyne
ACCULINK
NET EQPT NET
IN IN NET
OUT OUT EQPT
3150
Figure 4–10. ACCULINK 3150 CSU Front Panel
SEND CODE
UP UP/DN
FRAME
LOSS
LOW DENS
LOOPED
PULSES
CRITICAL POWER
FAR END LOOPED
F1
OK FAIL TEST SIG OOF ALRM EER SIG OOF ALRM PDV BPV
NETWORK
AOO
Eq Eq SM SM
IN OUT MON MON IN OUT
ALARM
NEAR END LOOPED
BPV
CRC ERROR
FRAME LOSS
F2 F3
DTE
Control Unit Problems
ESF T1 CSU
-1 +1
4–95