Inter-Tel GMX-48 INSTALLATION & MAINTENANCE Manual
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INTER-TEL PRACTICES TROUBLESHOOTING GMX-48 INSTALLATION & MAINTENANCE Issue 2, May 1990 FIGURE 6-5. KEYSET TROUBLESHOOTING CHART (CONT’D) SYMPTOM FCTIVE ACTION Cannot place off-hook voice announce calls Programming error Ensure that the system option for off-hook voice announce is enabled (PROGRAM- MING, page 5-24), that the called keyset is programmed to receive OHVA calls, and that the calling keyset is programmed to transmit OHVA calls (PROGRAMMING, page 5-49). User error The called station is a 1Zline keyset or a single-line set (they cannot receive OHVA calls) or it is a 24-line keyset that is programmed not to receive OHVA calls. Or, the called keyset user may have blocked the OHVA call. Refer to page 4-51 in FEATURES for more information. Defective keyset Perform the keyset self-test as described in INSTALLATION, page 3-40, and replace the keyset if faulty. Defective station circuit Replace defective KCB or EXF! Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Page 6-33
TROUBLESHOOTING Issue 2, May 1990 INTER-TEL PRACTICES GMX-48 INSTALLATION & MAINTENANCE FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART __ x :’ SYMPTOM Single-line set completely inoperative. PROBABLE CAUSE APM and/or proper software not installed CORRF,CTlVE ACTION An APM and Intermediate or Advanced software are required for single-line set capability. Defective set Replace the single-line set. Defective cabling Check amphenol connector and station cabling. Refer to INSTALLATION, page 3-9. Defective APM Replace the associated APM. Single-line set inoperative. Talk battery present. Programming error Defective set Defective system channel or switching matrix Ensure the circuit has been equipped. Refer to PROGRAMMING, page 5-49. Replace the single-line set. I Perform network self test. Refer to PROGRAMMING, page 5-128. Defective APM Replace the associated APM. Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Single-line set inoperative. Calls ring in. Talk battery is present. Defective set Defective APM Replace the single-line set. Replace the associated APM. A group of six single-line sets inoperative. All are on the same APM. Loose amphenol connector Defective APM Defective KCB Ensure connector is securely attached to the APM. Replace the associated APM. Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Page 6-34
INTER-TEL PRACTICES GMX-48 INSTALLATION & MAINTENANCE TROUBLESHOOTING Issue 2, May 1990 FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART (CONT’D) SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION : _: : Single-line set will not ring for CO. or intercom calls. Talk battery is present. Calls can be placed. APM or single-line set ring straps not set for correct ringing If set for DC ringing, APM fuse may be defective Set the associated strap for the correct ringer (AC or DC). Refer to INSTAL- LATION, pages 3-34 and 3-46. Replace APM fuse. Refer to page 2-9 in SPECIFICATIONS. Defective ring generator and/or improper cabling If using an AC ringer, you must install a ring generator on the APM that has proper REN for the stations it supports. Check the ring generator cabling. Refer to page 2-14 in SPECIFICATIONS. Defective set Defective APM Defective KCB Replace the set. Replace the associated APM. Refer to page 6-2 to test the system - voltages. Replace the control board if faulty. Ring trip is not provided to a group of six single-line sets. Outgoing calls are not affected. -48VDC absent from APM Defective connection or incorrect installa- tion of -48VDC on the APM. Using a voltmeter, measure the -48VDC (V/BR pair) at the APM block. Refer to INSTALLA- TION, pages 3-8 to 3-12. Defective cabling Using a voltmeter, measure the -4SVDC input at the amphenol connector (pins 49 and 24). Refer to Figure 3-5 on page 3-12 in INSTALLATION. Defective APM Replace the associated APM. Page 6-35
TROUBLESHOOTING INTER-TEL PRACTICES Issue 2, May 1990 GMX-48 INSTALLATION & MAINTENANCE FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART (CONT’D) SYMPTOM PROBABLE CAUSE CORRFCTIVE ACTION A group of AC ringer- equipped single-line sets will not ring for C.O. or intercom calls. T&lk battery is present. Calls can be placed. All stations are on the same APM. Ringer generator not attached to APM Defective cabling or miswired amphenol connector on the APM Defective connection or incorrect installa- tion of ring generator to APM. Using a voltmeter, measure the ring generator input (V/S pair) at the APM block. Refer to INSTALLATZON, pages 3-8 to 3-12. Using a voltmeter, measure the ring gen- erator input on the associated amphenol connector (pins 50 and 25). Refer to Fig- ure 3-5 on page 3-12 in INSTALLATION. Defective APM Replace the associated APM. Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. No AC ringer-equipped single-line set will ring for C.O. or intercom calls. Talk battery present. Calls can be placed. Defective ring generator Defective cabling or miswired amphenol connector on all APMs Ring generator connected to a APM must be llOVAC, 30Hz. Use a voltmeter to measure the output. It must have the proper REN to ring the stations it supports. See SPECIFICATIONS, page 2-14. Using a voltmeter, measure the ring gen- erator input on all amphenol connectors @ins 50 and 25). Refer to Figure 3-5 on page 3-12 in INSTALLATION. Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Cannot obtain intercom dial tone. No sound is heard. Either a DTMF decoder, voice channel, or tone generator is not available Defective set Defective APM Defective KCB Single-line station user will hear silence when any of the necessary resources are not available. User may camp on. Replace the single-line set. Replace the associated APM. Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Page 6-36
INTER-TEL PRACTICES TROUBLESHOOTING GMX-48 INSTALLATION & MAINTENANCE Issue 2, May 1990 / FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART (CONT’D) SYMPTOM CORWCTIVE ACTION Cannot place intercom call. Dial tone present, but reorder tone heard. User error Defective set Defective KCB Tly the call again. User may have dialed an invalid number. Replace the single-line set. Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Cannot break C.O. dial tone Defective set Defective APM Replace the single-line set. Replace the associated APM. Cannot place off-hook voice announce calls Programming error Ensure that the system option for off-hook voice announce is enabled (PROGRAMS MING, page 5-24) and that the station is programmed to transmit (page 5-49). User error Called station is a 12-line keyset or a single- line set. Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Single-line sets not receiving message waiting indications Programming error Message waiting indication option must be enabled in the database. Refer to page 5-24 in PROGRAMMING. Page 6-37
TROUBLESHOOTING Issue 2, May 1990 INTER-TEL PRACTICES GMX-48 INSTALLATION & MAINTENANCE FIGURE 6-7. DSS/BLF UNIT TROUBLESHOOTING CHART SYMPTOM DSWBLF inoperative. No LED indication present while key is pressed. PROBABLE CAUSE Defective cabling CORRFCTIVE ACTION Ensure 30VDC present at the DSS/BLF modular jack and polarity is correct. Check for loose or open connections. Refer to Figure 3-l on page 3-7 in INSTALLATION. Defective DSS/BLF Unit Replace the DSS/BLF Unit. Defective station fuse Replace the fuse if faulty. Defective station circuit Replace defective KCB or EXP. DSS/BLF inoperative. LED indication present while key is pressed. Programming error Circuit is identified for keyset use. Refer to page 5-49 in PROGRAMMING. Circuit must be equipped for DSS/BLF Unit use. Defective DSS/BLF Unit Replace the DSS/BLF Unit. Defective station circuit Replace defective KCB or EXI? Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. DSWBLF LED indications incorrect Cable exposed to interference Refer to INSTALLATION, page 3-6, for correct cabling procedures. Programming error Check DSS key assignment in PROGRAM- MING, page 5-72. Defective DSS/BLF Unit Replace the DSS/BLF Unit. Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. Calls are transferred to the wrong station User error Refer to FEATURES, pages 4-61 and 4-92, for procedures. Programming error Check DSS/BLF key assignments. Refer to PROGRAMMING, page 5-72. Page 6-38
‘. INTER-TEL PRACTICES GMX-48 INSTALLATION 8z MAINTENANCE TROUBLESHOOTING Issue 2, May 1990 FIGURE 6-7. DSS/BLF UNIT TROUBLESHOOTING CHART (CONT’D) SYMPTOM PROBABLF CAUSF Cannot place immediate off-hook voice announce calls (using the DSS/BLF Programming error User error Defective keyset Defective DSS/BLF Unit Defective station circuit Replace defective KCB or EXI? Defective KCB Refer to page 6-2 to test the system voltages. Replace the control board if faulty. CORRECTIVE ACTION Ensure that the system option for off-hook voice announce is enabled, that the immediate off-hook voice announce option is enabled, that the DSYBLF station is programmed to transmit, and that the called keyset is programmed to receive. Refer to pages 5-24 and 5-49 in PROGRAMMING. The called station is a 1Zline keyset or a single-line set (they cannot receive OHVA calls) or is a 24-line keyset that is programmed not to receive OHVA calls. Or, the called keyset user may have blocked the OHVA call. Refer to page 4-51 in FEA’IZRES for more information. Perform the keyset self-test as described in INSTALLATION, page 3-40, and replace the keyset if faulty. Perform the DSS self-test (see INSTAL- LATION, page 3-45) and replace the DSS/ BLF Unit if faulty. Page 6-39
INTER-TEL PRACTICES TROUBLESHOOTING GMX-48 INSTALLATION & MAINTENANCE Issue 2, May 1990 i .: 7. DEFECTIVE UNIT RETURN POLICY IMPORTANT For complete information on returning equip- ment, refer to the current Inter-Tel Incorporated Material Return Policy (document part number 835.1065). This document includes specific in- formation on the following subjects: warranty, procedures to follow when returning equip- ment, equipment damaged in shipment, insur- ance, repair policy, and advance replacement policy. 7.1 TORETURNADEFECTIVEUNITFORREPAIR: (1) (2) (3) Obtain an MRA number from Inter-Tel’s Or- der Processing Department. Write the MRA number and Am: MRA on the outside of each carton being returned. INTER-TEL DOES NOT ACCEPT EQUIPMENT IF THE MRA NUMBER IS NOT ON THE CARTON. On the repair tag, identify the unit by the equipment name, part number, and serial number. (Repair tags are available from Inter- Tel.) Describe the defect in detail and, if applicable, the circuit number related to the defect. In- (4) elude applicable alarm messages and/or field service diagnostics, if possible. Document the estimated length of time the part had been in service prior to the failure. ALL EQUIP- MENTRETURNED FOR REPAIR MUSTBE TAGGED WITH COMPLETE, DETMLED INFORMATION REGARDING THE DE- FECT OR IDENTIFICATION OF THE PROBLEM. Attach the upper portion of the repair tag to the defective equipment. Retain the bottom portion for your files. (5) Properly package the equipment for shipping (i.e., return in original package or equivalent). WARRANTY MAY BE VOIDED IF EQUIP- MENT IS IMPROPERLY PACKAGED. CAUTION To prevent damage, the KCB, EXPs, and APMs must always be transported or shipped as indi- vidually packaged units. Do not transport or ship an assembled KSU; such action will void the war- ranty. Also, while the KCB is out of service, make sure that the database back-up battery strap (JMP 1) is in the B position (upper two pins) to preserve the battery charge. Page 6-41
INTER-TEL PRACTICES GMX-48 INSTALLATION & MAINTENANCE REPLACEMENT PARTS Issue 2, May 1990 REPLACEMENT PARTS CONTENTS PAGE 1. 2. .- :: 3. :; 4. 1. 1.1 Introduction ............................................................ 7-l Ordering Procedure ..................................................... 7-l Replacement Parts List .................................................. 7-l Recommended Spare Parts ............................................... 7-l INTRODUCTION 3. REPLACEMENT PARTS LIST This section provides the information necessary 3.1 Figure 7-l on the next page lists authorized parts available for replacement on the GMX-48 Sys- tem. to order replacement parts for the GMX-48 System. 2. ORDERING PROCEDURE 2.1 When ordering equipment for the GMX-48 Sys- tem it is necessary to provide the following informa- tion to your order processing clerk: Company name Purchase order number Required date of shipment Part number(s) of equipment ordered Quantity required 4. RECOMMENDED SPARE PART_S 4.1 It is mandatory that spare parts be kept on hand to ensure the best possible customer service. 4.2 Figure 7-2 on page 7-3 lists the quantities of spare parts recommended to adequately maintain and service ten GMX-48 Systems. Page 7-l