Mitel Sx 50 Dpabx Instructions Guide
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Troubleshooting Procedures and General Maintenance Information Failure in read/writetest of non-volatile RAM. ar alarm. If alarm per- s, replace Generic Mod- Signal Processor failure. Replace Control Card. IO Trunk Condition. (No loop Open line. Check trunk by direct access current). Slow Central Office. from Attendant console. Incorrect programming of Check programming. loop/ground start. (See Ap- Try another trunk card. pendix B). Follow Table 4-5. Trunk card malfunction. 11 Trunk Condition. (No seize Same as above. Same as above. acknowledge). 12 Trunk Condition. (No release Central Office interface prob- Check programming. acknowledge). lem. Check wiring. Incorrect programming of Try another trunk card. loop/ground start. (See Ap- If fault persists, contact the pendix B). telephone company. i Tip and Ring reversed. Trunk card problem. T ___~- Reseat Line Card. for bent pins on card recurs, replace Line Three-party conferencecir- cuit failed test. curs, change Con- Revision 0 9104-091-350-NA Issue 5
Troubleshooting Procedures (continued) Automatic diagno error recurs, replace Trunk eport occurrence in value outside of allowed 9104-091-210-NA, Cus- r Data Entry (CDE), for data range. Correct mand at console. 9104-091-350-NA Issue 5 Revision 0 350 4-5
r Troubleshooting Procedures and General Maintenance Information the set’s handset. has not discon- 3 incorrect entries for Check security code. Page 3 of 3 350 4-6 Revision 0 9104-091-350-NA Issue 5
Troubleshooting Procedures isconnect Timing should be increased one step at a time until calls no longer drop. (CMD 500 + equipment number eg. 2 field e = 0). Check Trunk Programming Loop/ Ground Start setting. CMD 500 + trunk number Reg. 2 field g O=loop between 23 mA and 65 mA. Test loop resistance. Resistance should not exceed serving CO’s \lo access. Check trunk programming, particularly loop/ground sta Cannot break dial tone (DTMF sets). Check for busi r dial tone should be set to 9104-091-350-NA Issue 5 Revision 0 350 4-7
Troubleshootina Procedures and General Maintenance Information Table 4-6 Station Troubleshooting (continued) Ensure that station’s COS is not 0. hook flash performed. .5 s max. (CMD 100 Reg. 6 field c = 1). Ensure, does not cause a problem when flashing while con- Table 4-7 Failed. If an alarm is raised there is no dial 350 4-8 Revision 0 9 I 04-09 l -350-NA Issue 5
TROUBLESHOOTING AIDS 5.1 This function connects the Attendant Console to the selected trunk. If the trunk is idle or busied-out, CO dial tone is received. If the trunk is in use, busy tone is received. The Alarm LED turns off, all stored alarm messages are erased and all busied-out equipment is restored to normal operation. ate: Attendant function 32 will not clear busy-outs if function 32 was performed within the preceding 60 seconds. If busy-outs do not clear in response to function 32, wait 60 seconds and repeat the command. a (*I 31 The alarm message is displayed. The ALARM LED stops flashing and remains lit; the console bell stops ringing. lar alar 1) The alarm message is displayed and then deleted. Display begins with the active alarm, if there is one, or the last alarm message in the memory. Subsequent uses of this command display and delete the older messages in the memory. When the last alarm message has been read, NO ALARMS is returned. This command controls the printing of the alarm messages in the memory. The system asks 3. 1 enables printing as alarms are raised. 0 disables printing. A reply of # prints all the alarms, regardless of enable/disable setting. The system asks . Reply 1, 2, 3 or 4. The DTMF Generator is busied-out. Diagnostics tests that use the DTMF Generator are bypassed. Dialing originating in the SX-50 system (e.g., Abbreviated dialing) is performed by outpulsing. 9104-091-350-NA Issue 5 Revision 0 350 5-I
Troubleshooting Procedures and General Maintenance Information The system asks 3. Reply 1, 2, 3, 4 or 5. The system asks . Reply with equipment number. Trunk will k by Equipment Number command. The associated trunk status LED flashes slowly. The display shows Printing will not begin until the System Security Code (default 7772) has been entered. The display shows (default 7772) has the RS-232 port. Loading will not begin until the System Security Code . Data is loaded at a rate of up to 1200 Baud through LEDs light. The display shows . The system asks # allows printer to A reply of * suspends printing. 0 purges printer. . Reply with equipment number. This command should be used with care, as it cuts off any call in progress on the trunk. n The system asks Reply 1, 2, 3 or 4. The DTMF Generator is available for normal access and diagnostics. The system asks Reply 1, 2, 3, 4 or 5. ?. Reply with equipment number. Actual release, indicated by trunk status LED being turned off, may not occur for another 45 seconds. The trunk will then be idle and accessible. 350 5-2 Revision 0 9104-091-350-NA issue 5
Troubleshooting Aids Table 5-1 nctions Slot Numbe; When the ‘RESET’ softkey is pressed, the Universal Card in the slot indicated is reset. This command has no effect on other card types. te: Key sequence ‘*4’ is equivalent to ‘RESET’ 9104-091-350-NA Issue 5 Revision 0 350 5-3
Troubleshooting Procedures and General Maintenance Information 5.2 The SX-50 system includes the following functions to allow maintenance personnel to examine the status of different parts of the system equipment. Inter-DX Link Status Display Station Status Display SUPERSET Status Display Trunk Status Display System Status Display shows the status of Dial tone detectors, the Tone Generator, DTMF Receivers and diagnostic tests. 350 5-4 Register 1 Register Number I Status of DTMF Receivers 1 - 5 0 = idle 1 = busy 2 = busied-out - = receiver not equipped Revision 0 9104-091350-NA Issue 5
Troubleshooting Aids Register 2 ’ 1 Register Number Status of Dial Tone Detectors 1 - 4 0 = idle 1 = busy 2 = busied-out Status of Tone Generator 0 = idle 1 = busy 2 = busied-out Register 3 I Register Number T Current Diagnostic Test: 0: No test is running 1: PROM checksums 2: Volatile RAM test 3: Non-volatile RAM checksums 4: Scheduling diagnostics 5: DX diagnostics 6: Tone detector diagnostics 7: Ton??generator diagnostics 8: DTMF receiver diagnostics 9: Tone detector diagnostics 10: Conference diagnostics 11: Tone detector diagnostics 12: Console diagnostics 13: Tone detector diagnostics 14: Line/trunk diagnostics 15: Inter-DX Lockup Diagnostics 9104-091-350-NA Issue 5 Revision 0 350 5-5