25 — Alarms
2902 MainStreet Technical Practices
25-3
May 2002 90-2906-01
Table 25-1 Detailed alarm descriptions
Alarm code
Description of alarm
AIS - 8K*
8 kHz timing has been received by the Codirectional DCM.
AIS - All Ones*
An all ones pattern has been received by the Codirectional DCM.
Board Self Test Failed
This alarm is used only during the production and factory testing of the 2902 MainStreet
unit.
Busy Out Applied*
A 5620 NM has forced the link specified in the first parameter to be busied out.
Card Activity Change
A primary rate link has been switched from a preferred link to a protecting link.
CPU Self Test Failed
The CPU self-test described in Table 4-3 has failed.
Device Failed
The background or directed diagnostics have detected a failed module. Locate and replace
the module.
Distant/Yellow Alarms*
The far end has lost frame alignment on a primary rate link. Check the first parameter of
the subcode to identify the primary rate link.
DX Self Test Failed
The Control DX memory self-test described in Table 4-3 has failed.
E1 Framer Self Test Failed
One of the E1 Framer loopback self-tests described in Table 4-3 has failed.
External Alarm Raised*
If the external alarm is enabled as an open circuit, this alarm means the circuit has opened.
If the external alarm is enabled as a closed circuit, this alarm means the circuit has closed.
Failed State*
A primary rate link has experienced 10 consecutive severely errored seconds and may
have been taken out of service as a result. The first parameter identifies the failed link.
Framing Err Rate Exceeded*
The E1 link error threshold was exceeded.
Framing/AIS/Red Alarms*
Frame alignment has been lost on an E1 link. Check the first parameter of the subcode to
identify the module, then check the cable connections to the module and the E1 link.
HDLC Self Test Failed
One of the HDLC presence or HDLC loopback self-tests described in Table 4-3 has failed.
Interrupt Self Test Failed
The SMAC interrupt self-test described in Table 4-3 has failed.
LIM position 1 failed
The Loopback (LIM 1) self-test described in Table 4-3 has failed.
LIM position 2 failed
The Loopback (LIM 2) self-test described in Table 4-3 has failed.
LIS Alarm*
Loss of input signal on a Codirectional DCM circuit.
Module Dead
A module has been marked as dead.
Module Failure
A module is either not responding to the system or it failed the startup diagnostics on
common circuitry. Check the first parameter to identify the module.
Module Inserted
A module was inserted. The first parameter identifies the module.
Module Removed
A module was removed. The first parameter identifies the module.
Module Reset
A module on the Control card has been reset.
Multiframe Alarm / Incoming
TS16 AIS*
The E1 multiframe alignment has been lost.
NVM Error
The Control card has a problem in the non-volatile RAM. Record the alarm subcode and
parameters, then run directed test #3 (see section 26.3). After the test, record any
information displayed when you enter MAINT — NVM_DATA.
Power Rail Failed*
One of the power rails does not have power.
RAM Self Test Failed
The Address Bus self-test described in Table 4-3 has failed.
(1 of 2)
Содержание MainStreet 2902
Страница 1: ...2902 MainStreet Network Termination Unit Release 1 0 H T E C H N I C A L P R A C T I C E S ...
Страница 40: ...3 Mounting the unit 3 8 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 50: ...4 Ground and power connections 4 10 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 68: ...6 Connecting to the network 6 4 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 90: ...7 Connecting to data devices 7 22 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 108: ...10 Node management 10 10 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 150: ...14 CPSS 14 6 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 168: ...16 E1 circuit operating parameters 16 4 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 218: ...20 Codirectional DCM 20 6 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 234: ...22 HCM rate adaption 22 10 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 246: ...23 Cross connecting circuits 23 12 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 254: ...24 Visual indicators 24 8 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 266: ...25 Alarms 25 12 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 278: ...26 System diagnostics 26 12 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 298: ...27 Loopbacks 27 20 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
Страница 332: ...Glossary GL 8 2902 MainStreet Technical Practices 90 2906 01 May 2002 ...
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Страница 344: ... 2002 Alcatel All rights reserved 90 2906 01 95 1820 01 00 C ...