NEC Neax 2400 Imx Circuit Card Manual
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CHAPTER 2 ND-70182 (E) Page 46 Revision 4.0 PA - P W 5 4 - A Dual Power PA - P W 5 4 - A Dual Power 1. General Function The PA-PW54-A (DPWR) circuit card supplies operating power to circuit cards located in the PIM. The -48 V input power source, which is converted to +5 V, -5 V, and +12 V, is distributed to each circuit card in the PIM. This card also has a Ringing Generator Unit (RGU), whose output frequency and voltage can be selected from 20 Hz, 25 Hz, 75 Vrms, 90 Vrms by switch setting on this card. In addition, a Howler Tone circuit resides on this card. Figure 2-16 Location of PA-PW54-A (DPWR) Card in the System Note:The +80V input is required for activating Message Waiting Lamps (MWLs) . HOW (For LC)CR (For LC) +5V, +12V, -5V DC-DC RGU HOW SUB PWR REL NFB PA-PW55-A (PWR)PA-PW54-A (DPWR) -48 V (For LC, TRK) DC-DC RGU HOW SUB PWRREL NFB -48 V +80V (Option) Note +80 V (For MWL)
ND-70182 (E) CHAPTER 2 Page 47 Revision 4.0 PA - P W 5 4 - A Dual Power 2. Mounting Location/Conditions This circuit card is mounted in the following slot. 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 PIM Mounting ModulePIM (PA-PW54-A)DPWR
CHAPTER 2 ND-70182 (E) Page 48 Revision 4.0 PA - P W 5 4 - A Dual Power 3. Face Layout of Lamps, Switches, and Connectors The face layout of lamps, switches, and connectors on this circuit card is shown in Figure 2-17. Figure 2-17 Face Layout of PA-PW54-A (DPWR) Card -48V SW FUSE FUSE SIDE VIEWSW4 FRONT VIEW PA- PW54 -A 5.0 A 0.5 A RGUOUT 0.5A 125V AC/DC +80VOUT 5A 125V AC/DC -48VOUT 25A AC250V DC125V RST MB -48V DC INPUT-48V SW-48V IN CONN 25A +80V ON -48V ON RGU ON DC ON OPE DC ALM CPU ALM RGU ALM HOW ALM U P( )
ND-70182 (E) CHAPTER 2 Page 49 Revision 4.0 PA - P W 5 4 - A Dual Power 4. Lamp Indications Lamp indications for this circuit card are shown in the table below. 5. Switch Settings This circuit card has the following switches. 6. External Interface No cable connections are required. LAMP NAME COLOR STATE +80V ON Green Remains lit while +80 V input power is being supplied. –48 V ON Green Remains lit while –48 V input power is being supplied. RGU ON Green Remains lit while RGU output is in progress. DC ON Green Remains lit while +5 V, +12 V, and –5 V are being output normally. OPE Green Lights when information exchange with the CPU is possible. CPUALM Red Lights when reset of the microprocessor has been activated. DCALM Red Lights when +5 V, +12 V, or –5 V outputs alarm. RGUALM Red Lights when RGU voltage alarm. HOWALM Red Lights when howler alarm. SWITCH NAMESWITCH No.SETTINGSTANDARD SETTINGDESCRIPTION –48V SW—ON×–48 V input power is supplied. OFF–48 V input power is not supplied. RESET—PUSH Hardware reset of the circuit card. —×Normal setting. MB—ON Make-busy of the circuit card. OFF×Normal setting. SW41ON Frequency of Ringing Signal: 25 [Hz] OFF×Frequency of Ringing Signal: 20 [Hz] 2ON×Voltage of Ringing Signal: 90 [Vrms] OFF Voltage of Ringing Signal: 75 [Vrms]
CHAPTER 2 ND-70182 (E) Page 50 Revision 4.0 PA - P W 5 4 - A Dual Power 7. Switch Setting Sheet SWITCH NAMESWITCH SHAPE REMARKS –48 V RESET MB DOWN Circuit card Make-busy cancel SW420 [Hz] 90 [Vrms] ON1 2
ND-70182 (E) CHAPTER 2 Page 51 Revision 4.0 PA - P W 5 4 - B Dual Power PA - P W 5 4 - B Dual Power 1. General Function The PA-PW54-B (DPWR) circuit card supplies operating power to circuit cards accommodated in the PIM. The -48V input power source, which is converted to +5V, -5V, and +12V, is distributed to each circuit card in the PIM. This card is also equipped with a Ringing Generator Unit (RGU), whose output frequency and voltage can be selected among 20Hz, 25Hz, 75Vrms, 90Vrms by switch setting on this card. In addition, a Howler Tone circuit resides on this card. Figure 2-18 Location of PA-PW54-B (DPWR) Card within the System Note:The +80V input is required for activating Message Waiting Lamps (MWLs). HOW (For LC)CR (For LC) +5V, +12V, -5V DC-DC RGU HOW SUB PWR REL NFB PA-PW55-B (PWR)PA-PW54-B (DPWR) -48 V (For LC, TRK) DC-DC RGU HOW SUB PWRREL NFB -48 V +80V (Option) Note +80 V (For MWL)
CHAPTER 2 ND-70182 (E) Page 52 Revision 4.0 PA - P W 5 4 - B Dual Power 2. Mounting Location/Conditions This circuit card is mounted in the following slot. Mounting ModulePIM 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 DPWR (PA-PW54-B) PIM
ND-70182 (E) CHAPTER 2 Page 53 Revision 4.0 PA - P W 5 4 - B Dual Power 3. Face Layout of Lamps, Switches, and Connectors The face layout of lamps, switches, and connectors on this circuit card is shown in Figure 2-19. Figure 2-19 Face Layout of PA-PW54-B (DPWR) Card -48V SW FUSE FUSE SIDE VIEWSW4 FRONT VIEW PA- PW54 - B 5.0 A 0.5 A RGUOUT 0.5A 125V AC/DC +80VOUT 5A 125V AC/DC -48VOUT 25A AC250V DC125V RST MB -48V DC INPUT-48V SW-48V IN CONN 20A +80V ON -48V ON RGU ON DC ON OPE DC ALM CPU ALM RGU ALM HOW ALM U P( )
CHAPTER 2 ND-70182 (E) Page 54 Revision 4.0 PA - P W 5 4 - B Dual Power 4. Lamp Indications The contents of lamp indications on this circuit card are shown in the table below. 5. Switch Settings This circuit card has the following switches. 6. External Interface No cable connections are required. LAMP NAME COLOR STATE +80V ON Green Remains lit while +80 V input power is being supplied. –48 V ON Green Remains lit while –48 V input power is being supplied. RGU ON Green Remains lit while RGU output is in progress. DC ON Green Remains lit while +5 V, +12 V, and –5 V are being output normally. OPE Green Lights when information exchange with the CPU is possible. CPUALM Red Lights when reset of the microprocessor has been activated. DCALM Red Lights in the case of +5 V, +12 V, or –5 V outputs alarm. RGUALM Red Lights in the case of RGU voltage alarm. HOWALM Red Lights in the case of howler alarm. SWITCH NAMESWITCH No.SETTINGSTANDARD SETTINGDESCRIPTION –48V SW—ON×–48V input power is supplied. OFF–48V input power is not supplied. RESET—PUSH Hardware reset of the circuit card. —×Normal setting MB—ON Make busy of the circuit card. OFF×Normal setting SW41ON Frequency of Ringing Signal: 25 [Hz] OFF×Frequency of Ringing Signal: 20 [Hz] 2ON×Voltage of Ringing Signal: 90 [Vrms] OFF Voltage of Ringing Signal: 75 [Vrms]
ND-70182 (E) CHAPTER 2 Page 55 Revision 4.0 PA - P W 5 4 - B Dual Power 7. Switch Setting Sheet SWITCH NAMESWITCH SHAPE REMARKS –48 V RESET MB DOWN Circuit card make busy cancel SW420 [Hz] 90 [Vrms] ON1 2