Mitel SX-200 DIGITAL Pabx Engineering Information Manual

							Troubleshooting 
CABINET COOLING SYSTEM 
4.23 The maximum safe internal ambient operating temperature in- 
side the SX-ZOO8 DIGITAL PABX control cabinet is 40 degrees 
Celsius. A temperature sensor is installed within the cabinet and is set 
to trip at 60 degrees Celsius. This means that when the user is in- 
formed of this (via a log message), the system is definitely GVER- 
HEATING, and immediate action is required. Chart 4-9 outlines the 
troubleshooting procedures for the cabinet cooling system. 
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							Troubleshooting 
tep 
- 
1 
2 
3 
4 
5 
6 
9 
8 
9 
10 
11 
12 
CHART 4-9 
CABINET COOLING SUBSYSTEM TROUBLESHOOTING PROCEDURES 
Action Description f Follow-up emarks 
lerify that both of the fans are operating. ‘es: l Go to step 2. 
lo: @ Gotostep 10. 
/erify that temperature within the cabinet is in l Open the cabinet front door and hold the 
‘act at or near 60 degrees Celsius. thermometer deep within the cabinet. 
s the temperature at, or near 60 degrees? (es: 0 Go to step 5. 
\lo : * Go to step 4. 
The sensor is faulty. Replace the fan unit. 
Check the ambient room temperature; is 
temperature over 40 degrees Celsius? 
Check if there is anything obstructing the air inlet fes: * Remove the obstruction. 
vents on the front of the cabinet. Uo : * Go to step 7. 
Check if there is a localized source of heat, such fes: * Attend to the fault - refer to the 
as a malfunctioning power supply, board ‘or appropriate troubleshooting procedures. 
rectifier. No : * Go to step 0. 
Check the air filter; does it require cleaning / Yes: * Clean / replace the filter ag required. ee Note 
replacement. * Go to step 9. 1 
Wait briefly - verify that the filter change brings 
temperature down - measure with thermometer 
and check for maintenance log message. Yes: * Problem fixed. 
No : * Go to step 12. 
Check AC connection from AC distribution panel to * Secure connection / replace cord as ee Note 
the fan unit. required. 2 
Check if AC power is available throughout the 
system. (es: * This exceeds the maximum operating 
temperature. Lower temperature, or move 
the system to a cooler location. 
Uo : * Go to step 6. 
No: l Gotostep 12. 
* Go to step 11. 
Yes: l Go to step 12. 
No : l Refer to power subsystem troubleshootin 
procedures. 
Replace the fan unit. 
Notes: 1. Refer to Section MITL9108-093-353-NA, General Maintenance Information for details 
on filter maintenance. 
2. Refer to Section MITL9108-093-200-NA, Shipping, Receiving and Installation for details 
on cabling. 
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							Troubleshootin,g 
POWER4 FAIL TRANSFER SYSTEM 
General 
4.24 Power fail transfer relays are provided in order to allow essen- 
tial service to be maintained in the event of failure of a critical 
item of equipment, or a serious degradation of service. Power to the 
transfer relays is maintained diirKg normal operation, but during pow- 
er fail transfer conditions, power is cut off from the relays. This re- 
leases them, connecting selected ONS or OPS lines directly to selected 
CO trunks 
4.25 
Refer to Section MITL9108-093-ZOO-NA, Shipping, Receiving 
and Installation for details on the location of the PFT cards. 
Chart 4-10 outlines the troubleshooting procedures for the power fail 
transfer system. 
Note: In order to prevent misunderstanding, it is emphasized that 
the relays are NORMALLY OPERATED, and are RELEASED to 
effect the transfer operation. 
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							Troubleshooting 
CHART 4-10 
POWER FAIL TRANSFER BOARD TROUBLESHOOTING PROCEDURES 
itep Action Description / Follow-up Remarks 
1 Check if the system is operational. Yes: l Go to step 2. 
No : l Go to Chart 2-2. 
2 Check if the entire system is in power fail transfer Yes: @ Go to step 3. 
mode - refer to the maintenance log. No : l Go to step 7. 
3 Verify that -48 Vdc is available in all bays. Yes: * Go to step 4. 
No : 0 Go to the applicable power supply 
troubleshooting procedure. 
4 Verify that the maintenance panel switches are not * If they are, return them to the normal see Note 
set to power fail transfer. operating position. 1 
0 Go to step 5. 
-6-- Verify the -48 Vdc feed to the power fail transfer 
card - through the maintenance panel switches, to 
the interconnect card, to the power fail transfer 
card. l Secure wiring / replace wiring as see Note 
required. If problem persists, go to step 2 
6. 
6 Verify the connections at the interconnect field. * Repair connections as required; if see Nob 
problem persists, go to step 17. 3 
7 Check if entire peripheral cabinet is in the power Yes: * Go to step 8. 
fail transfer condition. No: 
l Gotostep12. 
8 Verify that -48 Vdc is available in all bays used in Yes: l Go to step 9. 
the cabinet. No : l Go to the applicable power supply 
troubleshooting procedure. 
9 Verify that the maintenance panel switches are not * If they are, return them to the normal see Nott 
set to power fail transfer. operating position. 1 
* Go to step 10. 
10 Verify the -46 Vdc feed to the power fail transfer l Secure wiring / replace wiring as see Note 
card - through the maintenance panel switches, to required. If problem persists, go to step 2 
the interconnect card, to the power fail transfer 11. 
card. 
11 Verify the connections at the interconnect field. * Repair connections as required; if 
problem persists, see Note 3 and go to 
step 17. 
12 Check if a single bay is in the power fail transfer Yes: l Go to step 13. 
condition. No: 
l Gotostep15. 
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							Troubleshooting 
CHART 4-10 (Cont’d) 
POWER FAIL TRANSFER BOARD TROUBLESHOOTING PROCEDURES 
itep Action Description I Follow-up 
13 Verify that -48 Vdc is available in the affected bav. Yes: 
l Go to step 14. 
No : l Go to the applicable power supply 
troubleshooting procedure. Remarks 
14 Verify the connections at the interconnect field. 
l Repair connections as required; if 
problem persists, see Note 3 and go to 
step 17. 
15 Check if one or more separate stations are in the Yes: * Go to step 16. 
power fail transfer condition. No : 
0 No problem with power fail transfer 
system. 
16 Verify the connections at the interconnect field. * Repair connections as required; if see Note 
problem persists, go to step 17. 3 
 
17 Replace the affected power fail transfer card. * If problem persists, contact Mite1 Field 
Service. 
Notes: 1. Refer to Section MITL9108-093-353-NA, General Maintenance lnformation for details 
on the switch settings. 
2. Refer to Section MITL9108-093-200-NA, Shipping, Receiving and Installation for details 
on PFT card wiring. 
3. Refer to Section MITL9108-093-200-NA, Shipping, Receiving and Installation for details 
6n PFT connections to the interconnect field. 
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							Troubleshooting 
APPENDIX A 
MAlNTENANCE LOG MESSAGES 
General 
Al.01 This Appendix contains the complete set of information mes- 
sages which are recorded in the maintenance log when a sig- 
nificant event occurs. Each message is self-explanatory, identifying the 
event and providing details about it. information on options available 
to maintenance personel is included under the “Action Required” head- 
ing. 
Al.02 There are three types of log report; they are as follows: 
1. Fault Report - a report generated when the maintenance sys- 
tem or Call Processing detects a fault, or an abnormal con- 
dition. 
2. Reset Report - a report generated when a bay or the system is 
reset. 
3. Alarm Report - a report generated when a change in any of the 
alarm levels occurs. 
Al.03 This Appendix is divided into three sections which correspond 
to the three types of log messages The ‘Fault Reports’ section 
is arranged using the Alarm Code, an index number specific to the type 
of fault indicated. The Reset and Alarm Report sections are arranged in 
a logical manner. 
Al.04 Information on access to the maintenance log, and the use of 
other maintenance tools 
may be found in Section 
MITL9108-093-351-NA, RS-232 Maintenance Terminal. Information on 
overall maintenance philosophy and specific diagnostic tests may be 
found in Section MITL9108-093-353-NA, General Maintenance Infor- 
mation. 
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							Troubleshooting 
TABLE Al-l 
FAULT REPORTS 
Channel number 19, link number 07 failed 
junctor test Alarm Code = 00 rected test on t pecified link to verify 
blem. Note that 02 corresponds to Bay 
05 corresponds ay 04, and link 07 
onds to Bay 05 e problem persists, 
Part of this Section. 
r, using the MONITOR 
Channel number 19, link number 07 failed 
junctor dgl codec Alarm Code = 01 o a directed test on the specified link to verify 
ther, using the 
Channel number 19, link number 07 failed 
junctor ang codec Alarm Code = 02 Do a directed test on the specified link to verify 
the problem. Note that link 02 corresponds to Bay 
03, link 05 corresponds to Bay 04, and link 07 
ther, using the 
Replace as required. Otherwise, investigate 
further, using the MONITOR DIAGNOSTICS and 
SHOW STATUS commands. 
console ang codec Alarm Code = 05 
ONS card failed at 02 01 01 00 ext 2401 
inject codec test Alarm Code = 06 Do a directed test on the specified circuit to 
verify the problem. If the problem persists, refer 
to the Fault Isolation Part of this Section. 
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							Troubleshooting 
TABLE Al-l (Cont’d) 
FAULT REPORTS 
Alarm Code 
neric Generic 
300 1001 Message Action Required 
36 06 COV card failed at 01 05 01 00 ext 1501 
Int’d) (Cont’d) inject codec test Alarm Code = 06 
LS/GS trk card failed at 02 02 01 00 
inject codec test Alarm Code = 06 
E&M module failed at 02 02 01 00 
inject codec test Alarm Code = 06 
DTMF RX module failed at 02 02 01 00 
inject codec test Alarm Code = 06 
07 07 ONS card failed at 02 01 01 00 ext 2101 Do a directed test on the specified circuit to 
Dgl L/B codec test Alarm Code = 07 
verify the problem. If the problem persists, refer 
COV card failed at 01 05 01 00 ext 1501 to the Fault Isolation Part of this Section. 
Dgl L/B codec test Alarm Code = 07 Otherwise, investigate further, using the MONITOR 
DIAGNOSTICS and SHOW STATUS commands. 
LS/GS trk card failed at 02 02 01 00 
Dgl L/B codec test Alarm Code = 07 
E&M module failed at 02 02 01 00 
Dgl L/B codec test Alarm Code = 07 
DTMF RX module failed at 02 02 01 00 
Dgl L/B codec test Alarm Code = 07 
08 08 ONS card failed at 02 01 01 00 ext 2101 Do a directed test on the specified circuit to 
Ang L/B codec test Alarm Code = 08 verify the problem. If the problem persists, the 
COV card failed at 01 05 01 00 ext 1501 fault is isolated to the specified circuit. Refer to 
Ang L/B codec test Alarm Code = 08 the appropriate Part of this Section. Replace as 
required. Otherwise, investigate further, using the 
LS/GS trk card failed at 02 02 01 00 MONITOR DIAGNOSTICS and SHOW STATUS 
Ang L/B codec test Alarm Code = 08 commands. 
E&M module failed at 02 02 01 00 
Ang L/B codec test Alarm Code = 08 
DTMF RX module failed at 02 02 01 00 
Ang VB codec test Alarm Code = 08 
10 10 ONS card failed at 02 01 01 00 ext 2101 Do a directed test on the specified circuit to 
Hook test Alarm Code = 10 verify the problem. If the problem persists, refer 
to the ONS Line card Part of this Section. Replace 
as required. Otherwise, investigate further, using 
the MONITOR DIAGNOSTICS and SHOW STATUS 
commands. 
11 11 ONS card failed at 02 01 01 00 ext 2101 Do a directed test on the specified circuit to 
Adc reference test Alarm Code = 11 
verify problem. If the problem persists, refer to 
LS/GS trk card failed at 02 02 01 00 the Fault Isolation Part of this Section. Otherwise, 
ADC reference test Alarm Code = 11 investigate further, using the MONITOR 
DIAGNOSTICS and SHOW STATUS commands. 
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							Troubleshooting 
TA8LE Al-l (Cont’d) 
FAULT REPORTS 
LS/GS trk card failed at 02 02 01 00 
Hybrid loopback test Alarm Code = 13 Do a directed test on the specified circuit to 
verify the problem. If the problem persists, the 
fault is isolated to the specified circuit. Refer to 
the appropriate Part of this Section. Otherwise, 
investigate further, using the MONITOR 
DTMF RX module failed at 02 02 01 00 
DTMF receiver test Alarm Code = 14 
PRINTER failed at 00 00 02 00 
Printer down Alarm Code = 15 Do a directed test on the printer to verify this. 
Signal Pro failed at 00 00 06 00 
DSP tone detect test Alarm Code = 17 
Signal Pro failed at 00 00 06 00 
DSP tone gen Alarm Code = 18 
card Part of this Section. Otherwise, investigate 
furttier, using the MONITOR DIAGNOSTICS 
Signal Pro failed at 00 00 06 00 
DSP conference test Alarm Code = 19 Do a directed test on the DSP to verify the 
problem. If it persists, refer to the Main Control 
card Part of this Section. Otherwise, investigate 
ing the MONITOR DIAGNOSTICS 
Signal Pro failed at 00 00 06 00 
DSP went insane Alarm Code = 100 Do a directed test on the DSP to verify the 
-- 
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							Troubleshooting 
TABLE Al-l (Cont’d) 
FAULT REPORTS 
Alarm Code Message Action Required 
neric Generic 
000 1001 
17 101 ONS card failed at 02 01 01 00 ext 2101 Information only. 
OFF hook too long Alarm Code = 101 
Stn line card failed at 03 01 01 00 ext 3101 
OFF hook too long Alarm Code = 101 
COV card failed at 01 05 01 00 ext 1501 
OFF hook too long Alarm Code = 101 
Superset card failed at 03 01 01 00 ext 3101 
OFF hook too long Alarm Code = 101 
18 102 ONS card failed at 02 01 01 00 ext 2101 Verify card has been removed. If alarm is raised 
Card removed Alarm Code = 102 
due to this, either replace/re-install the card, or 
Stn line card failed at 03 01 01 00 ext 3101 deprogram it via CDE. Refer to Section 
Card removed Alarm Code = 102 MITL9108-093-210-NA, Customer Data Entry for 
details. 
COV card failed at 01 05 01 00 ext 1501 
Card removed Alarm Code = 102 
Superset card failed at 03 01 01 00 ext 3101 
Card removed Alarm Code = 102 
LWGS trk card failed at 02 02 01 00 
Card removed Alarm Code = 102 
CO trunk card failed at 02 02 01 00 
Card removed Alarm Code = 102 
E&M trunk card failed at 02 02 01 00 
Card removed Alarm Code = 102 
DID trunk card failed at 02 02 01 00 
Card removed Alarm Code = 102 
UNIV card type failed at 02 03 01 00 
Card removed Alarm Code = 102 
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