NEC Neax 2400 Imx System Operations And Maintenance Manual
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![Page 478
NDA-24238 CHAPTER 6
Page 451
Revision 3.0
SYSTEM OPERATIONS
10.3 Bad Call Notification
(1) General
When a station user has trouble because of hearing noise during a call, or has other difficulty having a
normal call, the line involved is recorded as a bad call notification.
The record displays on the MAT screen as system message [6-H], which indicates the recording source
(Station Number), Called Station Number or Trunk Number, etc.
(2) Operating Procedure
SFC of the station user who can perform this...](http://img.usermanuals.tech/thumb/54/84348/w64_nec-neax2400-imx-system-operations-and-maintenance-manual_d-477.png "Page 478
NDA-24238 CHAPTER 6
Page 451
Revision 3.0
SYSTEM OPERATIONS
10.3 Bad Call Notification
(1) General
When a station user has trouble because of hearing noise during a call, or has other difficulty having a
normal call, the line involved is recorded as a bad call notification.
The record displays on the MAT screen as system message [6-H], which indicates the recording source
(Station Number), Called Station Number or Trunk Number, etc.
(2) Operating Procedure
SFC of the station user who can perform this...")
CHAPTER 6 NDA-24238 Page 454 Revision 3.0 SYSTEM OPERATIONS b6 — Call Forwarding Data Clear (See Index 232) 0/1 = No/Yes INDEX90 b1 — Backup Call Forwarding, Individual Speed Data and Name Display Data to HDD (see Index 304) 0/1 = No/Yes b3 — Residual Link Detection 0/1 = No/Yes INDEX304 b0 — Individual Speed Calling Data Saving 0/1 = Out/In Service (This data is valid when SYS1, INDEX90, b1=1) b1 — Call Forwarding Data Saving 0/1 = Out/In Service (This data is valid when SYS1, INDEX90, b1=1) b3 — Name Display Data Saving 0/1 = Out/In Service (This data is valid when SYS1, INDEX90, b1=1) b4 — User Assign Soft Key Data Saving (for Release 3 or later) 0/1 = Out/In Service (This data is valid when SYS1, INDEX90, b1=1) b5 — Number Sharing Data Saving (for Release 3 or later) 0/1 = Out/In Service (This data is valid when SYS1, INDEX90, b1=1) 11.2 Routine Diagnosis Result The result of routine diagnosis displays as a system message. Normally ended: [7-O] Abnormality detected[7-P] Refer to Chapter 3 for more details. In case an abnormality is detected, initiate necessary processing explained in Chapter 5.
NDA-24238 CHAPTER 6 Page 455 Revision 3.0 SYSTEM OPERATIONS 12. SYSTEM CONTROL PROCEDURES Although the system is remarkably maintenance free, maintenance technicians occasionally may confront a situation in which they have to manually control the system. This chapter describes system control procedures focusing on the following four items. Changeover/Make-busy/Make-busy Cancel of Equipment Initialization How to Turn On/Off the Whole System System Start-up Note:Changeover of equipment is available for common control equipment, which is provided in a dual con- figuration. 12.1 Changeover/Make-Busy/Make-Busy Cancel of Equipment 12.1.1 General This section explains system operations which are necessary for Changeover/Make-Busy/Make-Busy Cancel of equipment dividing them into the following two blocks. CPU Block Switching Block (TSW, PLO) Prior to performing these operations, see Figure 6-37 through Figure 6-47 to obtain general under- standing on the system configuration. Figure 6-37 shows a general block diagram of a dual-configuration system. Referring to the diagram, confirm the routes to be affected by any of the following operations: CPU Changeover: The ACT/STBY of CPU can be changed over by using the CMOD com- mand or operating the MBR key on the CPU front panel. If the system of CPU is changed over, the ACT/STBY of GT (in TSWM), as well as of the belonging ISAGT and LANI, are also changed over. Note:The changeover of CPU can be performed by operating the CPU SEL key on the EMA (PH-PC40) card. However, this method is not normally used except in cases of unavoidable circumstances. Refer to Sec- tion 12.1.2, How to Control CPU Block. Speech Path Changeover: The ACT/STBY of Speech Path System can be changed over by using the CMOD command or operating the MBR key on the active GT circuit card. If the system of Speech Path is once changeover, all the TSW, DLKC, and MUX in the same switching block are also totally changed over.
CHAPTER 6 NDA-24238 Page 456 Revision 3.0 SYSTEM OPERATIONS PLO Changeover: Though PLO is included in the switching block together with the TDSW, MUX, and DLKC, its ACT/STBY changeover should be performed inde- pendently by operating the MB key on the card. The changeover of PLO does not affect any other systems. Figure 6-37 Switching Network General Block Diagram IMG0 TSW I/O BUS TSW I/O BUS CPR 0CPR 1 TSW 00 GT 0 GT 1 CPU 1 TSW 10 TSW 01 TSW 11 TSW 02 TSW 12 TSW 03 TSW 13 DLKC 1DLKC 0PLO 1 PLO 0 ISAGT LANILANI ISAGT LANILANI ISAGT: PZ-GT13 LANI: PZ-PC19 GT: PH-GT09 TSW: PH-SW12 MUX: PH-PC36 DLKC: PH-PC20 PLO: PH-CK16/17/16-A/17-A CPU 0 PCM HWPM BUSPCM HWPM BUSPCM HWPM BUSPCM HWPM BUS MUXMUXMUXMUX Line/Trunk PMIMG1 PCM HWPM BUSPCM HWPM BUSPCM HWPM BUSPCM HWPM BUS MUXMUXMUXMUX Line/Trunk PMIMG2 PCM HWPM BUSPCM HWPM BUSPCM HWPM BUSPCM HWPM BUS MUXMUXMUXMUX Line/Trunk PMIMG3 PCM HWPM BUSPCM HWPM BUSPCM HWPM BUSPCM HWPM BUS MUXMUXMUXMUX Line/Trunk PM EMA: PH-PC40 IOC: PH-IO24 EMAIOC/ MISC MISC BUS
NDA-24238 CHAPTER 6 Page 457 Revision 3.0 SYSTEM OPERATIONS To perform the ACT/STBY system changeover, check the lamp indicators shown in Figure 6-38, and then operate the related key. Note 1:LED indications cited in Figure 6-38 are only an example. The indicating pattern (ON/Flash/OFF) can differ, depending on each system setting. Note 2:STATUS 7-seg. LED provides information on ACT/STBY status of the belonging CPU. For details on the LED’s checking method, refer Figure 6-41. Figure 6-38 How to Check LEDs and SW Keys for System Changeover (IMG0) 13 14MUX ACTMUX(PH-PC36) MUX(PH-PC36) 13 14MUX ACTMUX(PH-PC36) MUX(PH-PC36) 13 14MUX ACTMUX(PH-PC36) MUX(PH-PC36) MUX ACTMUX(PH-PC36) MUX(PH-PC36) 13 14 TOPU PIM3 PIM2 PIM1 PIM0 LPM BASEUFANU FRONT VIEW : Lamp is ON : Lamp is OFF: Lamp is Flashing Legend CPU 0 -> ACT TSW 0 -> ACT System State IMG0 MUX FRONT MUX ACT MB 0304 IOC(PH-IO24) EMA (PH-PC49) OPE ..... ..... ..... ..... DSP 0 (PZ-DK224) DSP 1 (PZ-DK224) OPE/MB12234 55667788OFFOFF12234 OFFOFF12234 55667788OFFOFF 12234 55667788OFFOFF12234 OFFOFF12234 55667788OFFOFF 4C026AE 4C026AEIMG1 IMG2 IMG3 STATUS Note 2 CPUOPE WDT IMG0 12 34 567 8 OFF 12 34 OFF 12 34 567 8 OFF MBR 4C026AE PZ-DK224 FRONT
CHAPTER 6 NDA-24238 Page 458 Revision 3.0 SYSTEM OPERATIONS To perform ACT/STBY system changeover, check the lamp indicators shown in Figure 6-39, and then operate the related key. Note:LED indications cited in Figure 6-39 are only an example. The indicating patterns (ON/Flash/OFF) can differ, depending on each system setting. Figure 6-39 How to Check LEDs and SW Keys for System Changeover (IMG1) 13 14 MUX(PH-PC36) MUX(PH-PC36) 13 14 MUX(PH-PC36) MUX(PH-PC36) 13 14 MUX(PH-PC36) MUX(PH-PC36) MUX(PH-PC36) MUX(PH-PC36) 13 14 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 DLKC (PH-PC20) DLKC (PH-PC20) GT (PH-GT09) TSW 00 (PH-SW12) TSW 01 (PH-SW12) TSW 02 (PH-SW12) TSW 03 (PH-SW12) TSW 10 (PH-SW12) TSW 11 (PH-SW12) TSW 12 (PH-SW12) TSW 13 (PH-SW12) PLO Note 1 PLO Note 1 (RES) GT (PH-GT09) TOPU PIM3 PIM2 PIM1 PIM0 TSWM BASEU FANU FRONT VIEW : Lamp is ON : Lamp is OFF Legend IMG1 System State TSW 0 -> ACT PLO 0 -> ACT DLKC 0 -> ACT MUX FRONT MUX ACT MB DLKC FRONT OPE/MB MB PLO FRONT TSW FRONT TSW ACT MBTSW MBR GT FRONT OPE/MB MBMBR ACT MB Note:Use any of the following circuit cards: PH-CK16, PH-CK17, PH-CK16-A, PH-CK17-A
NDA-24238 CHAPTER 6 Page 459 Revision 3.0 SYSTEM OPERATIONS To perform the ACT/STBY system changeover, check the lamp indicators shown in Figure 6-40, and then operate the related key. Note:LED indications cited in Figure 6-40 are only an example. The indicating pattern (ON/Flash/OFF) can differ, depending on each system setting. Figure 6-40 How to Check LEDs and SW Keys for System Changeover (IMG2/3) 13 14 MUX(PH-PC36) MUX(PH-PC36) 13 14 MUX(PH-PC36) MUX(PH-PC36) 13 14 MUX(PH-PC36) MUX(PH-PC36) MUX(PH-PC36) MUX(PH-PC36) 13 14 TOPU PIM3 PIM2 PIM1 PIM0 DUMMY/APM BASEUFANU FRONT VIEW : Lamp is ON : Lamp is OFF Legend TSW 0 -> ACT System State IMG 2/3 MUX FRONT MUX ACTMB
CHAPTER 6 NDA-24238 Page 460 Revision 3.0 SYSTEM OPERATIONS How to check the STATUS 7-segment LEDs The ACT/STBY status of CPU can be confirmed by viewing the STATUS 7-segment LEDs. Visually check the LED indications and confirm which CPU is active in your system. When the STATUS LEDs display any of the two-digit numbers (00 - 99), the belonging CPU is active. If the LEDs display the three letters (S, B and Y) in rotation, the CPU system is in STBY mode. Note that the numbers (00 - 99), displayed on the active CPU front panel (DSP), conform to the percentage points showing CPU occupancy rate. Figure 6-41 How to Check STATUS LEDs Note: Except for the indication of the STATUS 7-segment LEDs, the ACT/STBY of the CPU also can be con- firmed via the lamps on the DSP. If the CPU OPE lamp light steady-green and IMG0-3 are flashing, the CPU is active. If CPU OPE appears OFF and IMG0 is flashing, the CPU is in STBY mode. Legend Lamp is ON :Lamp is OFF: Lamp is Flashing: Active IMG1 IMG2IMG3 CPUOPE STATUSWDTIMG0 12 34 567 8 OFF 12 34 OFF 12 34 567 8 OFF 12 34 567 8 OFF 12 34 OFF 12 34 567 8 OFF MBR STATUS 4C026AE4C026AE ST-BY IMG1 IMG2 IMG3 CPUOPE WDTIMG0 MBR DSP (Front View) DSP (Front View) If the CPU is active, the LEDs here indicate CPU occupancy rate.If the CPU is in ST-BY mode, the left-side LED here goes OFF and the right side beams S, b and y in rotation.
NDA-24238 CHAPTER 6 Page 461 Revision 3.0 SYSTEM OPERATIONS 12.1.2 How to Control CPU Block The CPU, when it is provided in a dual configuration, can be switched over by one of the operations shown in Table 6-8. If the system of CPU is changed over, the ACT/STBY of GT (in TSWM) also changes over. Note 1:While changeover of the CPU is in progress, any call attempt is rejected. Already established calls, however, will not be affected. Note 2:When the forced changeover is executed, the entire system is initialized. For this reason, do not use this operation except in unavoidable circumstances. Figure 6-42 shows a system block diagram centering upon the CPU and its controlling GT. Though the two sides have a complicated cable connection, the controlling route of CPU 0 directly goes to GT 0, and that of CPU 1 to GT 1. Therefore, if the system of CPU is changed over, the ACT/STBY of GT also changes over. Because the ACT/STBY changeover of CPU also affects the GT status, the MBR key on the GT card is not used for GT system changeover. The key is used to switch over the Speech Path System, involv- ing the TSW, DLKC, and MUX circuit cards. Refer to Section 12.1.6, Manual System Changeover of Speech Path System. Table 6-8 Changeover of CPU Block TYPE OPERATIONS REMARKS Changeover by CMOD Note 1Use the CMOD command. See Chapter 8.CPU OPE lamp lights steady green on the DSP of the CPU, which is placed into act-mode by this operation. OPE/MB lamp of GT (PH-GT09) card, which is in the controlling route, lights green. Changeover by key operation Note 1Turn ON the MBR key on the active DSP of the active CPU. After a few seconds, return the MBR key to the previous position. See Section 12.1.3, Manual System Changeover of CPU. Forced Changeover Note 2ACT/STBY mode of CPU can be controlled by CPU SEL key operation on the EMA (PH-PC40) card. UP: No. 0 system (ACT) DOWN: No. 1 system (ACT) Normally, this key must be placed in the center position when the CPU is provided in a dual configuration. See Section 12.1.4, Forced Changeover of CPU. ATTENTIONContents Static Sensitive Handling Precautions Required
CHAPTER 6 NDA-24238 Page 462 Revision 3.0 SYSTEM OPERATIONS Figure 6-42 System Block Diagram (Switching Network Between CPU and GT) IMG0 IMG1 IMG2 IMG3 TSW I/O BUS TSW I/O BUS CPR 0CPR 1 MISC BUS IOP0 Backboard Backboard Bus T External Cable TSW 00 GT 0 GT 1 CPU 1 MUXMUXMUXMUX TSW 10 TSW 01 MUXMUXMUXMUX TSW 11 TSW 02 MUXMUXMUXMUX TSW 12 TSW 03 MUXMUXMUXMUX TSW 13 DLKC 1DLKC 0PLO 1 PLO 0 ISAGT LANILANI ISAGT LANILANI IOC/ MISCEMA CPU 0 CPU ISAGT0 GT 1GT 0 Note:The connection between ISAGT and GT is somewhat unique in this system. As shown, though an external cable is physically connected between ISAGT #0 and GT#1, the actual control signal is sent/received only between ISAGT 0 and GT 0. This is because GT 0 and GT 1 have a multiple con- nection on the backboard side. Note ISAGT: PZ-GT13 LANI: PZ-PC19 GT: PH-GT09 TSW: PH-SW12 MUX: PH-PC36 DLKC: PH-PC20 PLO: PH-CK16/17 EMA: PH-PC40 IOC: PH-IO24
NDA-24238 CHAPTER 6 Page 463 Revision 3.0 SYSTEM OPERATIONS 12.1.3 Manual System Changeover of CPU To change over the CPU system, the CMOD command is normally used. However, if the command cannot be used for some reason, use the key operations listed below: Note:For system changeover via the command, see Chapter 8. STEP 1 Determine which CPU is active. (1) Check the lamp indications. Refer to Figure 6-43 and Table 6-8. Figure 6-43 CPU in ACT/STBY Mode The CPU changeover also affects the ACT/STBY of GT in the TSWM. Refer to Figure 6-44 for more information, also check the lamp indications on the GT (PH-GT09) card. Figure 6-44 GT in ACT/STBY Mode Improper key operations may result in a system down. Operate the related keys, applying extreme care.WAR NI NG Legend Lamp is ON :Lamp is OFF: Lamp is Flashing: Active IMG1 IMG2 STATUSSTATUS IMG3 CPUOPE WDT IMG0 MBR ST-BY IMG1 IMG2 IMG3 CPUOPE WDT IMG0 MBR DSP (Front View) 12 34 567 8 OFF 12 34 OFF 12 34 567 8 OFF 12 34 567 8 OFF 12 34 OFF 12 34 567 8 OFF 4C026AE4C026AE MB MBR OPE/MB GT: Active green Legend FRONT VIEW GT (PH-GT09) GT: ST-BY MB MBR OPE/MB Lamp is ON :Lamp is OFF: