350-200-115-02, Issue 2
Alarms
HLU-200 List 1E
September 25, 1998
13
D
IAGNOSTIC
M
ESSAGES
The HLU-200 List 1E diagnostic messages are described in
Table 4.
HLU-200 List 1E Diagnostic Messages
Message
Full Name
Description
FERR
Framing Bit Error
Occurred
Framing bit error occurred at HLU T1
input.
LBPV
Local Bipolar
Violation
A bipolar violation has been received at the T1
input to the HLU.
SIG1 or SIG2
Signal 1 or Signal 2
The HLU & HRU transceivers are trying to
establish contact with each other.
S2(n)L1 or 2
Signal 2(n) Loop 1 or
Loop 2
The transceivers of the first doubler and either
the HRU or second doubler are trying to
establish contact with each other on loops 1 or
2 of span 2(n).
H1(2)ES
HDSL CRC Error
Channel 1(2)
HLU HDSL Loop 1(2) CRC error.
ACQ1(2)
Acquisition 1(2)
The HLU & HRU multiplexers are trying to
establish synchronization over each loop.
ARM
HiGain System
ARMED
Armed to respond to Intelligent Repeater Loop
Codes.
ACO
Alarm CutOff
A minor alarm has occurred, and been retired
to an ACO condition, by pressing the SEL
button on the HLU front panel.
Self Test
The HLU is in a self test mode. This
occurs every power ON/OFF cycle.
ALRM
Alarm Condition
Exists
A minor alarm condition is in effect.
1=xx or 2=yy
HDSL Loop
Margins
Indicates the relative S/N at each HDSL
transceiving input port. Any value of ‘06’ or
greater is adequate for reliable system
operation.
PWR FEED
SHRT
Power Feed Short
Indicates a short between the 2 HDSL pairs in
span 1. This same message can occur with an
HRU is drawing the correct amount of power
over good cable pairs but cannot communicate
with the HLU.
PWR FEED
OPEN
Power Feed Open
Indicates an open circuit in both the T&R of
either HDSL pair in span 1.
