NEC Neax 2400 Ipx System Operations And Maintenance Manual
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NDA-24307 CHAPTER 7 Page 583 Issue 1 ROUTINE MAINTENANCE PROCEDURE 4. ROUTINE MAINTENANCE CHECK LISTS This section provides check lists (Maintenance Procedure Reports) to be used when performing routine maintenance. The Routine Maintenance Check Lists consists of the following items: Maintenance Procedure Report C.O. Trunk/Tie Line Register/Sender Trunk (RST) Digital Conference Function (8 CFT) Speech Path for each PIM, and Ringing Generator Unit Attendant/Desk Console
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CHAPTER 7 NDA-24307 Page 584 Issue 1 ROUTINE MAINTENANCE PROCEDURE USER NAMESIGNATURE OF SUPERVISORWORK TIME (FROM - ) Name of User (Company) Date: Maintenance ClassificationRoutine/ Non-routine Control No. Maintenance Company Name of Equipment Room Temperature - °C °F & humidity %Name of Worker Reference SectionItem Detail Check Reference SectionItem Detail Check 3.1Check of Ambient Conditions in the Switch RoomAmbient Temperature3.9Trunk RGU Check SND Trunk Relative humidity DCF Function 3.2Alarm Check TOPU Tone 3.3MAT/Printer Check MAT MAT Printer3.10ATTCON Check Ringing Signal 3.4Collection of System MessagesRelated to Fault3.11System Check Result of Routine DiagnosisCPU 3.5Display of Locked- out StationLocked out StationsTSW 3.6Fan Unit Check PM 3.7Alarm Tests TOPU 3.8Main Power System CheckRectifier Battery 3.9Trunk RGU Check C.O. Trunk Tie Trunk ORT IRT Condition And Cause Procedure and Parts Used
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NDA-24307 CHAPTER 7 Page 585 Issue 1 ROUTINE MAINTENANCE PROCEDURE C.O. Trunk Tie Line TEST TYPE TEST ITEM CONNECTION DIAGRAM C.O. Trunk/Tie Line Speech Path TestSet up a speech path test by seizing a trunk using the Station or ATTCON/DESKCON connection test diagrammed to the right.Connection Test-Station Connection Test-ATTCON/DESKCON C.O. Trunk/Tie Line NAME OF TRUNK ROUTEACCESS NUMBERROUTE NUMBERTRUNK NUMBERCHECK REMARKS LCTRK C.O./Tie Line ATITRK C.O./Tie Line ATTCON/ DESKCON
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CHAPTER 7 NDA-24307 Page 586 Issue 1 ROUTINE MAINTENANCE PROCEDURE Register/Sender Trunk (RST) TEST TYPE TEST ITEM CONNECTION DIAGRAM ORT Function Perform the test by specifying an ORT using the Connection Test-Station. Confirm that [6-I] system message displays as a result of the test.DP/PB SENDER Function Perform the test by specifying an ORT using the Connection Test-Station. Confirm that [6-I] system message displays as a result of the test. LC ORT LC~ SND ORT
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NDA-24307 CHAPTER 7 Page 587 Issue 1 ROUTINE MAINTENANCE PROCEDURE RST (/) FUNCTION TRUNK NO.ORT SENDERREMARKSPB RECEIVING DP RECEIVING RST No.ORT0 SND0 11 22 33 44 55 66 77 RST No.00 11 22 33 44 55 66 77 RST No.00 11 22 33 44 55 66 77 RST No.00 11 22 33 44 55 66 77
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CHAPTER 7 NDA-24307 Page 588 Issue 1 ROUTINE MAINTENANCE PROCEDURE Digital Conference Function TEST TYPE TEST ITEM CONNECTION DIAGRAM Three-way Conversation Perform the test by specifying an 8CFT using the Connection Test-Station. Confirm that [6-I] system message displays as a result of the test. FUNCTION TRUNK NO.SPEECH RELEASE REMARKS CFT0 1 2 3 4 5 6 7 LC ~ TSTT MUX 8CFT ~
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NDA-24307 CHAPTER 7 Page 589 Issue 1 ROUTINE MAINTENANCE PROCEDURE Speech Path for Each PIM, and Ringing Generator Unit NO. TEST TYPE TEST ITEM CONNECTION DIAGRAM 1 The ATTCON/ DESKCON is called from one station in each PIM.Normal speech path is confirmed by calling the attendant from a station located in each PIM. 2 The operator calls the station back.After normal speech path has been confirmed, the attendant calls the station back. Confirm that the station rings. ATI ATTCON/ LC DESKCON ATI ATTCON/ LC ~ PWR0, 1 RG (RINGING) DESKCON
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CHAPTER 7 NDA-24307 Page 590 Issue 1 ROUTINE MAINTENANCE PROCEDURE MOUNTING LOCATION CHECK REMARKS MODULE NAME UNIT NAME PIM00 1 2 3 PIM10 1 2 3 PIM20 1 2 3 PIM30 1 2 3
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NDA-24307 CHAPTER 7 Page 591 Issue 1 ROUTINE MAINTENANCE PROCEDURE Attendant/Desk Console (ATTCON/DESKCON) TEST TYPE TEST ITEM CONNECTION DIAGRAM Call Termination Test A station dials the operator access code and confirm that the call termination is indicated at all the ATTCON/ DESKCON. A station dials the operator access code. An attendant answers and speaks with the caller. This process is repeated at all the ATTCON/ DESKCON. Call Origination Test The attendant originates a call to the station by pressing LOOP keys one after another. ATI ATTCON/ LC DESKCON ATTCON/ LC ~RG (RINGING) ATI DESKCON
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CHAPTER 7 NDA-24307 Page 592 Issue 1 ROUTINE MAINTENANCE PROCEDURE FUNCTION ATTCON/ DESKCON NO.CALL TERMINATION CALL ORIGINATION REMARKS INCOMING CALL INDICATIONSPEECH RELEASE SPEECH RELEASE 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15