NEC Neax 2400 Imx Circuit Card Manual
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CHAPTER 3 ND-70182 (E) Page 156 Revision 4.0 PH-CK16 Phase Lock Oscillator The source clock of the clock subordinate office is either the digital clock supply (DCS) or the digital interface clock (DIU0 - DIU3). When clock source failure has occurred, the PLO chooses another clock source automatically in the order of: 1. DCS 2. DIU0 3. DIU1 4. DIU2 5. DIU3 6. PLO changeover or the PLO internal oscillator drifting The PLO can output the clock signals (CLK) and the frame head signals (FH) as follows: 32.768 MHz CLK 8 KHz FH 5 msec × “n” FH
ND-70182 (E) CHAPTER 3 Page 157 Revision 4.0 PH-CK16 Phase Lock Oscillator The MUSIC ROM located on this circuit card also contains the hold tone, and is supplied to the TSW circuit card. When an external music on hold is applied to the 4 IMG system, this circuit card provides the interface for the external hold tone source. Figure 3-6 Music Source SELSEL SEL Speech Path Memory for Music/Tone Music/Tone MUSIC ROM TDSW00PLO#0 TONE ROM SELSEL SEL Speech Path Memory for Music/Tone Music/Tone MUSIC ROM TDSW1PLO#1 TONE ROM FMFM
CHAPTER 3 ND-70182 (E) Page 158 Revision 4.0 PH-CK16 Phase Lock Oscillator 2. Mounting Location/Condition This circuit card is mounted in the TSWM of the slot shown below. 3. Face Layout of Lamps, Switches, and Connectors The face layout of lamps, switches, and connectors is shown below. Figure 3-7 Face Layout of PH-CK16 (PLO) Mounting ModuleTSWM 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 1920212223PLO 0 PLO 1 1 2 3 4 1 2 SW8F SWAC SWAB MB ACT 1 2 3 4 5 6 7 8 MJ MN SYNC ICK PALM SW01 SW02 SW03
ND-70182 (E) CHAPTER 3 Page 159 Revision 4.0 PH-CK16 Phase Lock Oscillator 4. Lamp Indications Lamp indications for this circuit card are shown in the table below. 5. Switch Settings Standard settings of switches on this circuit card are shown in the table below. LAMP NAME COLOR STATE AC TGreen Remains lit while this circuit card is in active state. Off Remains off while this circuit card is in stand-by state. MJ RedLights when the following MJ fault has occurred: All of the clock supply routes have failed when the system operates as the clock subordinate office 32.768 MHz output clock failure 8 KHz output FH failure 5 msec × “n” output FH failure Input Frame Pulse (FP) failure (FP is supplied by the SYNC card) Internal OSC (±5 ppm deviation) has failed when the system operates as the clock source office MN RedLights when the following MN fault has occurred: One or more (but not all) DTI/DCS clock supply routes have failed Drifting failure Internal OSC (±5 ppm deviation) failure SYNCGreen Remains lit while the system is synchronized with the network. OFFRemains off when either of the following has occurred: DCS clock failure when receiving the clock signals from the DCS. DTI clock failure when receiving the clock signals from the DTI. Drifting failure ICK Green Lights when the internal oscillator is operating normally. PALM Red Remains lit when power is abnormal. SWITCH NAMESETTINGSTANDARD SETTINGMEANING MBUP Circuit card Make-busy. DOWN×Circuit card Make-busy cancel. SW03 1 - F 1 Fixed to “1.
CHAPTER 3 ND-70182 (E) Page 160 Revision 4.0 PH-CK16 Phase Lock Oscillator SWITCH NAMESWITCH NO.SETTINGSTANDARD SETTINGMEANING SW011ON×Clock subordinate office. OFF Clock source office. 2ON Digital Clock Supply route zero (DCS 0) is used. OFF Digital Clock Supply route zero (DCS 0) is not used. 3ON Digital Clock Supply route one (DCS 1) is used. OFF Digital Clock Supply route one (DCS 1) is not used. 4ON8 KHz of Frame Head signals are not extracted from the DCS signals (which is composed of 64 KHz + 8 KHz). OFF8 KHz of Frame Head signals are extracted from the DCS signals (which is composed of 64 KHz + 8 KHz). 5ONWhen clock source failure has occurred in all supply routes, the PLO outputs the original clock of the internal oscillator. OFFWhen clock source failure has not occurred in all supply routes, the PLO continues outputting the current phase clock. 6ONThis circuit card is associated with SYNC (PA-CK16 WCS) card. OFFThis circuit card is not associated with SYNC (PA-CK16 WCS) card. 7ON A-law CODEC is used for the hold music. OFF×µ-law CODEC is used for the hold music. 8 OFF ×Not used
ND-70182 (E) CHAPTER 3 Page 161 Revision 4.0 PH-CK16 Phase Lock Oscillator SWITCH NAMESWITCH NO.SETTINGSTANDARD SETTINGMEANING SW021ON DIU 0 is used as the DTI clock supply route zero. OFF DIU 0 is not used. 2ON DIU 1 is used as the DTI clock supply route one. OFF DIU 1 is not used. 3ON DIU 2 is used as the DTI clock supply route two. OFF DIU 2 is not used. 4ON DIU 3 is used as the DTI clock supply route three. OFF DIU 3 is not used. 5ON×1.5 M clock for DIU 0 OFF 2 M clock for DIU 0 6ON×1.5 M clock for DIU 1 OFF 2 M clock for DIU 1 7ON×1.5 M clock for DIU 2 OFF 2 M clock for DIU 2 8ON×1.5 M clock for DIU 3 OFF 2 M clock for DIU 3 SWAC1ON External hold tone source is used via FM lead. OFF×MUSIC ROM is used as the hold tone. 2OFF×Not used SW8F1 2 3 4 SW8F-1 SW8F-2Impedance of the External Music Source 0 (FM 0) OFF OFF 600 Ω ON OFF 8.2 Ω OFF ON 47K Ω SW8F-3 SW8F-4Impedance of the External Music Source 1 (FM 1) OFF OFF 600 Ω ON OFF 8.2 Ω OFF ON 47K Ω
CHAPTER 3 ND-70182 (E) Page 162 Revision 4.0 PH-CK16 Phase Lock Oscillator SWITCH NAMESWITCH NO.SETTINGSTANDARD SETTINGMEANING SWAB1 2 3 4ON Not used OFF×Not used 5 MUSIC CH1 selection. The kind of music varies depending on the melody IC located on this circuit card. 6 7 8ON Not used OFF×Not used SWA0-1 SWA0-2 SWA0-3 MUSIC OFF OFF OFF Für Elise ON OFF OFF Maiden’s prayer Not usedOFF ON Buzzer Not usedON OFF Chime
ND-70182 (E) CHAPTER 3 Page 163 Revision 4.0 PH-CK16 Phase Lock Oscillator 6. External Interface When this circuit card is located in the TSWM, connect 34PH EXCLK CA-A to the EXCLK0/EXCLK1 connectors on the backplane of the TSWM. Figure 3-8 LT Connector Lead Location of PLO (TSWM) 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23Slot No. TSWM FRONT VIEW PLO #1 PLO #0 26 1 FM 1 27 2 FM 0 28 3 SYN 1BE 29 4 SYN 0BE 30 5 DIU 3BSYN 1A 31 6 DIU 2BSYN 0A 32 7 DIU 1BDIU 3A 33 8 DIU 0BDIU 2A 34 9 DCS BDIU 1A 35 10 DIU 0A 36 11 DCS A 37 12 38 13 EXCLK0 (Slot No.21) EXCLK1 (Slot No.23)TSWMREAR VIEW 34PH EXCLK CA-A 34PH EXCLK CA-A34PH EXCLK CA-A LEAD ACCOMMODATION Installation Cable MDF To Digital Interface and/or DCS Mounting ModuleTSWM
CHAPTER 3 ND-70182 (E) Page 164 Revision 4.0 PH-CK16 Phase Lock Oscillator Figure 3-9 Connecting Route Diagram DCSB1 DIU0A1 DIU0B1 DIU1A1 DIU1B1 DIU2A1 DIU2B1 DIU3A1 DIU3B1 DCSA1 DCSB0 DIU0A0 DIU0B0 DIU1A0 DIU1B0 DIU2A0 DIU2B0 DIU3A0 DIU3B0 DCSA0 POUT B POUT A POUT B POUT A POUT B POUT A POUT B POUT A CCT /DTI /PRT CCT /DTI /PRT CCT /DTI /PRT CCT /DTI /PRT PLO #0 PLO #1 DCS Note : The following circuit cards have Clock Output Leads for a PLO card: CCT (PA-24CCTA, PA-30CCTB), DTI (PA-24DTR, PA-30DTS), and PRT (PA-24PRT, PA-30PRTC). MDF PBX
ND-70182 (E) CHAPTER 3 Page 165 Revision 4.0 PH-CK16 Phase Lock Oscillator 7. Switch Setting Sheet SWITCH NAME SWITCH SHAPE REMARKS MB SW01 SW02 SW03 SWAC SW8F SWAB ON 1234ON5678 1234ON5678 12ON 1234ON 1234ON5678