CTC Union ETU-01A User Manual

Chapter 5. Loop Back and BERT Testing
91
November 2001
Table 5-2 Alarm Message
Message Description Corrective Actions
Alarm
type
POWER TURN Power ON/OFF time. ON/OFF
BRG1 FAILURE
The data port baud
rate generator has
failed. Only tested at
power on.
Check the clock mode of
the user data channel.
Replace the ETU-01A.
ON
FIFO1 SLIP
The data port FIFO
buffer suffered an
overflow or underflow,
usually caused by
inconsistencies in
clock rates.
Check the clock mode of
the user data channel.
Replace the ETU-01A.
ON
E1 SIG. LOSS
Loss of E1 link receive
signal.
Check cable connections to
the E1 line connector.
Check other equipment
providing the link to the
ETU-01A.
ON/OFF
E1 SYNC LOSS
Loss of E1 link frame
sync.
Check cable connections to
the E1 line connector.
Check other equipment
providing the same frame
link to the ETU-01A.
Replace the ETU-01A.
ON/OFF
E1 LINK BPV
Bipolar violations in
the E1 link receive
signal. Updated once
per second.
Check that line attenuation
does not exceed that
specified for E1 line.
Check other equipment
providing the same line
code to the ETU-01A.
ON
E1 CRC4 ERR
CRC-
4 errors detected
in E1 link receive
signal. Updated once
per second.
Check other equipment
providing the same frame
link to the ETU-01A.
ON
E1 FRAME SLIP
E1
link frame slips are
detected. Updated once
per second.
Incorrect selection of
master clock source.
Problem with the
equipment connected to the
remote end of the link,
unstable clock source.
ON
E1 LINE AIS
E1 link receiving an
all ones signal.
Problem with the
equipment connected to the
remote end of the link.
ON/OFF

CTC Union ETU-01A Specifications

General

Brand	CTC Union
Model	ETU-01A
Category	Control Unit
Language	English