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RAD Data comm HCD-E1 User Manual

Page 145

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HCD-E1 Installation & Operation Manual

Chapter 5 - Troubleshooting and Diagnostics

01/01/01 08:15

Status Indications and Alarms 5-5

Table 5-1 HCD-E1 Alarm Buffer Messages (Cont.)

LCD Message

Terminal Message

Alarm
Number

Probable Cause

Corrective Actions

Alarm
Type

DTE NOT CON CH:1 DTE NOT CONNECTED

TO CH:1

38

The Ethernet interface is not
connected to an operating LAN

Check the cable connecting the LAN, the LAN
media, and check that at least one station is active
on the LAN

ON/OFF

DTE NOT CON CH:2 DTE NOT CONNECTED

TO CH:2

41

The Ethernet interface is not
connected to an operating LAN

Check the cable connecting the LAN, the LAN
media, and check that at least one station is active
on the LAN

ON/OFF

ELASTIC BUF OVF

ELASTIC BUFFER
OVERFLOW

34

The HDSL elastic buffer is
overflown.

1. Check the timing of clocks selected in the

system, and make sure that they are derived
from the same source.

2. Perform the power-up self-test and replace

HCD-E1 if it fails the test.

ON

ELS BUF ERR: LP1
ELS BUF ERR: LP2

ELASTIC BUFFER ERROR:
LP1
ELASTIC BUFFER ERROR:
LP2

33

The corresponding HDSL line is
not supplying data.

1. Check HDSL line connections.
2. Check the operation of the local and remote

units and replace if necessary.

ON

EXC ERR RAT: SL*

EXCESSIVE ERROR
RATIO: SL*

11

Excessive bit error rate (higher
than 10

-3

) is detected in the data

received by the local unit’s
sublink.

Check the connection between the E1 sublink and
its DTE.

ON/OFF

EXCESS BPV: SL*

EXCESSIVE BPV: SL*

07

Excessive BPV are detected on
the E1 sublink.

1. Check if there is a problem in the network

facilities used by the E1 sublink.

2. Perform the power-up self-test and replace

HCD-E1 if it fails the test.

ON/OFF

Note

Alarm 38 appears only when you perform DSP ALM REM command and you have an HTU-2 at the remote site.