NEC Neax 2000 Ivs2 Isdn System Manual
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NEAX2000 IVS2 ISDN System ManualPage 30 ND-70919 (E), Issue 1.0 CHAPTER 1 GENERAL INFORMATION DTI Specifications * The S-bit is the first bit in each frame. * Frames are repeated in the order shown above. * Frames 6 and 12 become signal frames. Table 1-6 12-Multi Frame Bit Assignment FRAME No.S BIT TERMINAL SYNCHRONIZATION (FT)SIGNAL SYNCHRONIZATION (FS) 11 20 30 40 51 61 70 81 91 10 1 11 0 12 0
CHAPTER 1 GENERAL INFORMATION DTI Specifications NEAX2000 IVS2 ISDN System Manual ND-70919 (E), Issue 1.0 Page 31 (2) 24-Multi Frame This configuration has 24-Multi Frames and each Multi frame has a 24-Channel PCM signal (8 bits/channel) and an S bit (Superframe Bit). Figure 1-14 shows the frame configuration, and Ta b l e 1 - 7 shows frame bit assignment. Figure 1-14 DTI Frame Configuration (24-Multi Frame) SCH1 112345678 12345678CH2 12 3 45 6 78CH3 12345678CH24 FRAME 1 FRAME 2 FRAME 3 FRAME 24 125 ms S: Superframe Bit
NEAX2000 IVS2 ISDN System ManualPage 32 ND-70919 (E), Issue 1.0 CHAPTER 1 GENERAL INFORMATION DTI Specifications * The S-bit is the first bit in each frame. * Frames are repeated in the order shown above. * Frames 6, 12, and 24 become signal frames. * “m” in the “4 Kbps Data Link” column means that the frame is usually assigned to 1. Table 1-7 24-Multi Frame Bit Assignment FRAME No.S BIT FRAME SYNCHRONIZATION4 Kbps DATA LINK CRC 1m 2CB1 3m 40 5m 6CB2 7m 80 9m 10 CB3 11 m 12 1 13 m 14 CB4 15 m 16 0 17 m 18 CB5 19 m 20 1 21 m 22 CB6 23 m 24 1
CHAPTER 1 GENERAL INFORMATION DTI Specifications NEAX2000 IVS2 ISDN System Manual ND-70919 (E), Issue 1.0 Page 33 Frame Configuration of 30DTI Based on 30-channel transmission method of ITU-T Specification, the frame configuration consists of 16-multi frame, each frame having 32 time slots. Figure 1-15 shows the frame configuration, and Table 1-8 shows the details of time slot assignment. Figure 1-15 Frame Configuration of 30DTI TS0 TS1 TS2 FRAME 0 FRAME 1 FRAME 2 FRAME 3 125 µsecTS15 TS16 TS17 FRAME 14TS30 FRAME 15TS31
NEAX2000 IVS2 ISDN System ManualPage 34 ND-70919 (E), Issue 1.0 CHAPTER 1 GENERAL INFORMATION DTI Specifications Table 1-8 Time Slot Assignment of 30DTI TIME SLOT No.EVEN No. FRAME ODD No. FRAME TS0 Frame Alignment Signal (FAS) TS1 TS15Voice Channel (B channel) CH1 CH15 TS16 D Channel Signaling TS17 TS31Voice Channel (B channel) CH17 CH31 X0 011 0 1101 2 3 4 5 6 7 bb FAS CRC BITX1 X11 1 1101 2 3 4 5 6 7 bb REMOTE ALARM CRC BIT 0: NORMAL 1: FRAME LOSS ~~ ~~
NEAX2000 IVS2 ISDN System Manual ND-70919 (E), Issue 1.0 Page 35 CHAPTER 2 INSTALLATION This chapter explains the hardware installation procedure to provide ISDN interface to the PBX.
NEAX2000 IVS2 ISDN System ManualPage 36 ND-70919 (E), Issue 1.0 CHAPTER 2 INSTALLATION Precautions PRECAUTIONS Static Electricity Guard You must wear a grounded wrist strap to protect circuit cards from static electricity. Figure 2-1 Static Electricity Guard (1 of 2) WHEN PLUGGING/UNPLUGGING A CIRCUIT CARD WHEN HOLDING A CIRCUIT CARD PBX WRIST STRAP FRAME GROUND SCREW CARD FRONT NEVER TOUCH THE COMPONENTS OR SOLDERED SURFACE WITH BARE HANDS.
CHAPTER 2 INSTALLATION Precautions NEAX2000 IVS2 ISDN System Manual ND-70919 (E), Issue 1.0 Page 37 Figure 2-1 Static Electricity Guard (2 of 2) WHEN MAKING A SWITCH SETTING ON A CIRCUIT CARD WHEN CARRYING A CIRCUIT CARD The mark shown below is attached to the sheet for the work in which circuit cards are handled. When engaging in such work, the installer must be careful not to cause damage by static electricity. WEAR A WRIST STRAP AND PERFORM THE WORK ON A GROUNDED CONDUCTIVE WORK SURFACE. CIRCUIT CARD WHEN CARRYING A CIRCUIT CARD AROUND, KEEP THE CARD IN A CONDUCTIVE POLYETHYLENE BAG. CIRCUIT CARDCONDUCTIVE POLYETHYLENE BAG AT T E N T I O N Contents Static Sensitive Handling Precautions Required
NEAX2000 IVS2 ISDN System ManualPage 38 ND-70919 (E), Issue 1.0 CHAPTER 2 INSTALLATION Precautions CAU TIO N You must hold the edge of a circuit card when plugging or unplugging the circuit card. If you touch another area, you may be exposed to hazardous voltages. CARD FRONT NEVER TOUCH THE COMPONENTS OR SOLDERED SURFACE WITH BARE HANDS. PBX
CHAPTER 2 INSTALLATION Required Equipment NEAX2000 IVS2 ISDN System Manual ND-70919 (E), Issue 1.0 Page 39 REQUIRED EQUIPMENT ISDN-PRI Required Equipment Ta b l e 2 - 1 shows the equipment required to provide ISDN with Primary Rate Interface to the system. ISDN-BRI Required Equipment Ta b l e 2 - 2 shows the equipment required to provide ISDN with Basic Rate Interface to the system. Table 2-1 ISDN-PRI Required Equipment EQUIPMENT DESCRIPTION QUANTITY REMARKS PN-24DTA-C (24-DTI)24-channel DTI Card 1-8 PN-24PRTA (PRT)24-channel PRT Card 1-8 PN-30DTC-A (30-DTI)30-channel DTI Card 1-4 PN-SC01 (DCH)D Channel Handler Card 1-8 1 DTI/card PZ-M542/M557 (CONN)Connection Card for Coaxial CableAs required 1 DTI/card Max. 3 per PIM Table 2-2 ISDN-BRI Required Equipment EQUIPMENT DESCRIPTION QUANTITY REMARKS PN-BRTA (BRT)1-line BRT Card 1-12 PN-2BRTC (BRT)2-line BRT Card 1-24