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Mitel SX-200 DIGITAL Pabx Engineering Information Manual

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Page 181

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....

Page 182

Troubleshooting 
tep 
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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....

Page 183

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...

Page 184

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...

Page 185

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....

Page 186

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...

Page 187

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...

Page 188

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...

Page 189

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...

Page 190

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...
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