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Mitel Sx 50 Dpabx Instructions Guide

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    Page
    of 727
    							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  
    						
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