PairGain HLU-431, Быстрое руководство по установке

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Testing 350-431-116-01, Revision 01
16 January 8, 1999 HLU-431 List 1F
F
OUR
-C
HARACTER
D
IAGNOSTIC
M
ESSAGES
The HLU- 431 diagnostic messages are listed in the table below.
Table 7. Four-Character Front Panel 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-319.
SIG 1 or 2 Signal 1 or Signal 2 The HLU and HRU or first HDU transceivers are
trying to establish contact with each other on
Loops 1 or 2 of Span 1.
S2L1 or 2
(a) Signal 2 Loop or
Loop 2 The first Doubler and the HRU transceivers are
trying to establish contact with each other on
Loops 1 or 2 of Span 2.
ACQ 1 or 2 Acquisition 1 or
Acquisition 2 The HLU and HRU or first HDU multiplexers are
trying to establish synchronization over each of
Loops 1 or 2 of Span 1.
A2L1 or 2
(a) Acquisition 2 Loop 1
or Loop 2 The first HDU and the HRU multiplexers are
trying to establish synchronization with each
other on Loops 1 or 2 of Span 2.
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 power of the received HDSL signal
on each loop relative to noise. Any value of ‘06’
or greater is adequate for reliable system
operation.
PWR FEED
SHRT Power Feed Short Indicates a short between the two HDSL pairs in
Span 1. This same message can occur with an
HRU that 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 the Tip and Ring of
either HDSL pair in Span 1.