Mitel Sx 200 El/ml Technicians Handbook
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Troubleshooting and Repair 91 Troubleshooting Disk Drive Maintenance SX-200 LIGHT/DIGITAL Floppy Disk Subsystem Troubleshooting Procedures Table 13 outlines the most likely causes of Floppy Disk Subsystem failure. Table 13: Floppy Disk Troubleshooting Summary Step Possible Malfunction Source 1.Drive units require resets - power down the control bay (Bay 2 or Bay 0), and power up again. Check for error codes on the Main Control Card numeric display - see Table 14. 2. Faulty backplane connections. 3. Faulty or improperly installed floppy disk. 4. Faulty / corrupt / obsolete software - reload with correct software. 5. Faulty power supply unit(s) - refer to Power System Troubleshooting. 6. Faulty Disk Drive unit. 7. Faulty Main Control. 8. Faulty cable connections.
Technician’s Handbook 92 NOTE: 1.Be aware of the difference between the code “E” and the code “E.”. “E” indi- cates MCC error and “E.” indicates disk drive errors. 2.If system is restarted at this point, the pending logs will be lost. Table 14: Floppy Disk Drive Error Code Summary Error CodeLikely Cause(s) E. 1Original system diskette has been replaced, and logs are pending. Either re-insert original diskette, or restart system. See Note 2. E. 2Original system diskette has been replaced. Either re-insert original diskette, or restart system. See Note 2. E. 3Disk drive is empty, and disk updates are pending. Either re-insert original diskette, or restart system. Disks may be locked (try backups). See Note 2. E. 4Disk drive is empty. Either re-insert original diskette, or restart system. See Note 2. E. 5 There is an obstruction over the diskette “write notch” (a write-protect sticker) - remove it, or on a 31/2” disk, slide protector over the hole. E. 6 Diskettes A and B don’t match (are not of the same load) - insert proper diskettes and restart system. E. 7 Restart system. If this persists, assume faulty Main Control - refer to the Main Control procedures. E. 8 Decryption Module is missing - install correct module, and restart system. If this persists, assume faulty Main Control - refer to the Main Control procedures. E. FInformation cannot be accessed on disks. Either re-insert diskette, or restart system.
Troubleshooting and Repair 93 Troubleshooting Disk Drive Strapping When replacing a floppy disk drive on an SX-200 LIGHT PBX, verify that the switch settings for the drives are set as follows: Drive A: AT DC MO D0 Drive B: AT DC MO D1 When replacing a floppy disk drive on an SX-200 DIGITAL PBX, verify that the switch settings for the drives that are mounted on a floppy disk mounting card are set as follows: Drive A: AT DC MO D0 Drive B: AT DC MO D0 On an ISDN Node, verify that the switch settings for the drive are: Drive A: AT DC MO D1 Troubleshooting the SX-200 IP Node To observe error messages from the SX-200 IP Node 1. Using a serial cable, connect a PC to the Maintenance Port on the IP Node. 2. Launch a data communication application, such as Hyperterminal on the PC. 3. Set the parameters: 9600, 8, N, 1, None. 4. Look for error messages in the SX-200 IP Node Troubleshooting Table on page 94.
Technician’s Handbook 94 Error Messages Table 15: SX-200 IP Node Troubleshooting Table Indication Possible Causes Action WARNING: SX200 Main control not connected or IP Node not supportedDefective Ethernet cablesReplace the Ethernet Crossover cable and CIM cable. The Control Triple CIM card is programmed as a Dual CIM card.Reprogram the Triple CIM Card. The CIM cable is connected to the wrong port on the SX-200 IP NodeCheck the hardware connections. The IP Bay is not programmed in CDE Form 01Program the IP Bay in CDE Form 01. Programming in CDE Form 04 and CDE Form 47 is not correctCheck the programming in CDE Form 04 and CDE Form 47. (Sheet 1 of 2)
Troubleshooting and Repair 95 Troubleshooting WARNING: Startup incomplete after 1800The DHCP server is not functioning properly.1. If youre not using a Mitel DHCP server, disconnect all DHCP servers OR Disconnect the IP Node from the subnet. 2. In the serial port window on the PC, type RetrieveDhcpDefaults. 3. Type Reboot. 4. Connect the BCC III Card to the Ethernet Switch with an Ethernet crossover cable. 5. Connect the IP Node to the Ethernet Switch. 6. Allow the IP Node to reboot. If the IP Node is still not working: 1. Reboot the IP Node. 2. Stop at Autoboot. 3. At the [VxWorks Boot] prompt, type c. 4. Check all settings. Table 15: SX-200 IP Node Troubleshooting Table (Continued) Indication Possible Causes Action (Sheet 2 of 2)
Technician’s Handbook 96 Test Line The test line is on the ONS line card at Bay 1, Slot 1, Circuit 1 for the SX-200 EL/ML or Bay 2, Slot 1, Circuit 1 for the SX-200 LIGHT/ DIGITAL. An access code for Feature 18, Maintenance Function - Test Line, must first be programmed in CDE Form 02 (Feature Access Codes). Specifying Equipment From Test Line Circuits are specified using their physical location numbers (bay, slot, circuit, subcircuit) or by Link and Channel number. A receiver circuit at location Bay 1, Slot 3, Circuit 3, Subcircuit 4 is specified as “01 03 03 04”. A line circuit at location Bay 1, Slot 1, Circuit 6 is specified as “01 01 06 00”. Circuits with no subcircuit number (such as lines and trunks) must be specified with “00” as the subcircuit. Channels are specified by using the required Link number and Channel number. The link number is a two-digit number (Links 0, 1, 14, or 15 cannot be tested). The Channel number is a two-digit number from 00 to 31. Channel 30 on Link 9 is specified as “09 30”. Commands are entered on the test line by dialing command codes listed in Table 16 using the DTMF keypad or the rotary dial of the set being used. Refer to Table 22, “Feature Access Codes,” on page 136. The test line cannot be accessed while CDE or maintenance is active.
Troubleshooting and Repair 97 Troubleshooting Table 16: Test Line Command Codes NumericAlphaCommand Codes Description 22 BCBusy Out Channel (Remove Channel) 26 BOBusy Out device 35 DLDump Logs 38 DTDirect Trunk select 72 RCReturn Channel 73 SDStop Dump Logs 77 RSReturn Device to Service 78 STStop Test Printers 82 TCTest Channel 83 TDTest Device 872 TPBTest Printer Bay_Slot_Circuit 873 TPETest Printer Extension_Number 877 TPPTest Printer Port
Technician’s Handbook 98 Test Line Indicator LEDs After the maintenance person enters a command sequence, the MCC LEDs display the results as explained in the following table. NOTE:Failure of any test line command sequence necessitates using more sophisti- cated maintenance tools. Table 17: Test Line Status Indicator Codes Code Meaning PA The attempted operation was successful (pass). FA The attempted operation was unsuccessful (fail). (blank) System is waiting for command input. II Test was inconclusive. E5 Invalid command or device location entered; only those commands in Table 16 are acceptable. bb Device was busy. Try again later. 7E An invalid physical location number was entered. Enter bay number (01), slot number (04), and circuit number (06). FF Unknown error. Attempt operation again - ensure correct use of command codes (see Table 16). 1E Error in acquiring the software ID of the test line. Attempt operation again - ensure correct use of command codes (see Table 16). If necessary, use maintenance terminal or console. 2E Possible software error. Attempt operation again - ensure correct use of command codes (see Table 16). Use maintenance terminal or console if necessary.
Troubleshooting and Repair 99 Troubleshooting Test Line Tones Approximately ten seconds after the maintenance person enters the test line access code on the test line set, a short ring burst, followed by dial tone is heard, indicating that the system is waiting for the command input. After the maintenance person enters a command sequence, the returned tone, described in Table 18, indicates the result of the action performed. Table 18: Test Line Status Tones Tone Type Meaning Dial tone System is waiting for command input. Camp-on tone (single beep) The attempted operation was successful (Pass). Reorder tone The attempted operation was unsuccessful (Fail). See Note after Table 10. Trunk camp-on tone (double beep) Test was inconclusive. Ringback tone (single beep or ring) Initial maintenance access. Busy Tone Device was busy. Try again later.