Mitel Sx 50 Dpabx Instructions Guide
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Code State 01 Idle 02 Waiting for a Receiver 03 Signaling 04 Busy 05 Reorder 06 Camped on 07 Held 08 Waiting for Answer 09 Talk OA Message Waiting OB t Calling Back Substates 14 Wait for line Select (SUPERSET Telephone) see Signaling SUBSTATES below 15 Busy Override 16 Swap/call Forward 2E Auto-answer 2B Wait for trunk Release 2c Wait for connection 2D Connected Troubleshooting Procedures and General Maintenance Information 350 5-16 Signaling Substates 19 System Administration IA Console Functions IB Direct Trunk Select 1c Hold W Voice Indication ID Call Hold Pickup IE Super Functions IF Waiting for DISA Access Code 20 Behind PBX Special Substate 21 Speed Call Set Up 22 Manual Digits Into Speed Call Num 23 Select Trunk Substate 24 Add Held Trunk Signaling 25 Wait for Dial Tone Detector 26 Wait For%ial Tone 27 Wait For Manual Dial Tone Indication 28 Get Receiver 29 Trunk Dialing 2A Delay Dialing Revision 0 9104-091-350-NA Issue 5
A.1 There are two methods for measuring loop current: 1. In-line measurement 2. Voltage conversion measurement. The in-line method is the most accurate. The voltage conversion method can be used where it is undesirable or not possible to break the loop. . Proceed as follows: 1. Open either the Tip or Ring lead by removing one of the bridge clips at the MDF. 2. Connect the ammeter leads where the bridge clip was removed, restoring the loop circuit. 3. Read the current when dial tone is present and on a completed call. . This method is not as accurate as an in-line measurement. Proceed as follows: 1. Connect a voltmeter across Tip and Ring. 2. Read the voltage when dial tone is present and on a completed call. 9 3. Divide the voltage reading by 250 ( typical resistance seen between Tip and Ring under these conditions). 9104-091-350-NA Issue 5 Revision 0 350 A-l
Troubleshooting Procedures and General Maintenance Information 350 A-2 Revision 0 9104-091-350-NA Issue 5
LOOP-START/GRO ND-START CHECK B.1 This test allows maintenance personnel to determine whether a trunk is a loop-start or ground-start circuit using only a Butt Set and a grounding lead. Proceed as follows: 1. Locate the trunk circuit at the MDF 2. Remove the bridge clips to disconnect the trunk from PABX. 3. Connect the Butt Set across CO Tip and Ring. 4. Go off-hook at the Butt Set. If dial tone is returned, CO trunk is loop-start. 5. If no dial tone is returned, momentarily ground the Ring lead while remaining off- hook at the Butt Set. If dial tone is returned, CO trunk is ground-start. 6. If there is still no dial tone, repeat the above step, but ground the Tip lead instead. If dial tone is returned, CO trunk is ground-start, but Tip and Ring are reversed. 9104-091-350~NA Issue5 Revision 0 350 B-l
Troubleshooting Procedures and General Maintenance Information 350 B-2 Revision 0 9104-091-350-NA Issue 5
C.-l Any card or any other device found faulty must be returned with a Mite1 Repair Tag (see Figure C-l). The following information must be included on the repair tag: 1. The date on which the device was returned. 2. The location of the installation. 3. The company name. 4. The product name (e.g., SX-50). 5. The system serial number. 6. The software generic (e.g., -00-EO 1.4) 7. The software revision (e.g., MS55-MRO-OO- 8. The assembly part number of the item being returned. 9. The assembly serial number of the item being returned. IO. Any pertinent alarm/error displays. Il. A brief description of the symptoms of the problem. I 12. Indicate whether the fault occurred ring installation, or while the system was in service. 13. Include on the back of the repair tag any further information that could be useful (e.g., location of system relative to other office equipment, recent power outages or storms). 9104-091-350-NA Issue 5 Revision 0 350 C-l
Troubleshooting Procedures and General Maintenance Information 1. Date: 2. Location: 3. Company: 5. System Serial No.: Revision: 9. Alarm/Error Displsys: -- 10. Trouble Symptom - - 11. Failure Occurred A) During In5tsllalion S) In Service :: Further Details UTIORI: PLEASE ENSURE PCB ASSEMBLY IS RETURNED IN ANTISTATIC BAG. cc002 mv. 350 c-2 Revision 0 9104-091-350-NA Issue 5