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Search Part No -  0   1   2   3   4   5   6   7   8   9    A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z    Complete Inventory List   Pages: 000  001  002  003  004  005  006  007  008  009  010  011  012  013  014  015  016  017  018  019  020  021  022  023  024  025  026  027  028  029  030  031  032  033  034  035  036  037  038  039  040  041  042  043  044  045  046  047  048  049  050  051  052  053  054  055  056  057  058  059     Part No  Description  QPC720B  NT PRIMARY RATE INTERFACE CARD  QPC720B  PRI/DTI CARD  QPC720B  PRI/DTI CARD  QPC720B  PRIMARY RATE INTERFACE CARD  QPC720B  NT PRIMARY RATE INTERFACE CARD  QPC720B-003  NORTEL PRI PRIMARY RATE INTERFACE CARD  QPC720BR  Primary Rate Interface Card  QPC720C  PRIMARY RATE INTERFACE CARD  QPC720C    QPC720C  OOS  QPC720C  card  QPC720C  PRIMARY RATE INTERFACE CARD  QPC720C  NT PRIMARY RATE INTERFACE CARD  QPC720C  PRIME RATE INTERFACE  QPC720C  NT PRIMARY RATE INTERFACE CARD  QPC720C A  PRI  QPC720C A  PRIM RATE INTERFACE  QPC720C r.A  PRI  QPC720C r.A  PRI  QPC720C-003  NORTEL PRIMARY RATE INTERFACE CARD PRI  QPC720CA  PRIM RATE INTERFACE  QPC720CR  Primary Rate Interface Card  QPC720CSA    QPC720D-U  Nortel Primary Rate Interface  QPC720E  PRIMARY RATE INTERFACE CARD  QPC720E    QPC720E  OOS  QPC720E  PRIMARY RATE INTERFACE CARD  QPC720E  network equipment  QPC720E    QPC720E  PRIME RATE INTERFACE  QPC720E  NT PRIMARY RATE INTERFACE CARD  QPC720E D  PRIM RATE ACC DUAL PACK  QPC720E D    QPC720E r.F  PRI  QPC720E r.F  PRI  QPC720E*    QPC720E-003  NORTEL PRI/DTI (PRIMARY RATE INTERFACE)  QPC720E-X  DTI/PRI Card  QPC720ED  PRI  QPC720ED  PRIM RATE ACC DUAL PACK  QPC720ED    QPC720ER  Primary Rate Interface Card  QPC720ESD    QPC720ESF    QPC720F  PRIMARY RATE INTERFACE CARD  QPC720F  card  QPC720F  PRI  QPC720F  NORTEL PBX PRI CARD QPC720F  QPC720F  NT PRIMARY RATE INTERFACE CARD  QPC720F  NT PRIMARY RATE INTERFACE CARD  QPC720F r.A  PRI  QPC720F r.A  PRI  QPC720F-003  NORTEL PRI/DTI (PRIMARY RATE INTERFACE)  QPC720F-X  DTI/PRI Card  QPC720FA    QPC720FN    QPC720FR  Primary Rate Interface Card  QPC720FSA    QPC720FSB    QPC723A  NT RILC-RS232C I/F LINE CARD  QPC723A  RILC  QPC723A  NT RILC-RS232C I/F LINE CARD  QPC723A-X  RILC - RS232C Interface  QPC723AR  RILC - RS232C Interface Line C  QPC728C  Nortel Module  QPC728C  Nortel Module  QPC729C  Contact Ron. 50% off all stock!  QPC72J  LOOP SIGNALING TRUNK  QPC72J  NORTEL  QPC72Jr  Loop Signaling Trunk  QPC72K*    QPC72L  DID TRUNK CARD  QPC72OC  N/A  QPC73-X  Dictation Trunk Applique  QPC74-X  Recorder Announcement Trunk  QPC742  Floppy Disk Interface Card  QPC742  Floppy Disk Interface Card  QPC742-E    QPC742-X  Floppy Disk Interface Card  QPC742A    QPC742A    QPC742A  NT FLOPPY DISK INTERFACE CARD  QPC742A-X  Floppy Disk Interface Card  QPC742B  NT FLOPPY DISK INTERFACE CARD  QPC742B-X  Floppy Disk Interface Card  QPC742D  FLOPPY DISK INTERFACE  QPC742D  NT FLOPPY DISK INTERFACE CARD  QPC742DR  Floppy Disk Interface card  QPC742E    QPC742E  OOS  QPC742E    QPC742E    QPC742E  NT FLOPPY DISK INTERFACE CARD  QPC742E  NORTEL  QPC742E  NT FLOPPY DISK INTERFACE CARD  QPC742E-003  NORTEL FLOPPY DISK INTERFACE CARD  QPC742E-X  Floppy Disk Interface Card  QPC742Er  Floppy Disk Interface E  QPC742F  SerK FDI /QMM42A MSI CRTG.TEL INTFC.  QPC742F    QPC742F  Ask for RON! 705-327-8691  QPC742F-003  NORTEL FDI CONTROLLER CARD  QPC742F-X  Floppy Disk Interface Card  QPC742FR  Floppy Disk Interface Card  QPC74A  RCD TRK  QPC74B    QPC74B  Recorder Announcement Trunk  QPC74B  Recorder Announcement Trunk  QPC74C  PACK CKT  QPC74C  RECORDED ANNOUNCEMENT TRUNK  QPC74C  SL-1 PE RCD ANNOUNCEMENT TRK  QPC74C  Recorder Announcement Trunk  QPC74C  NT RECORDED ANNOUNCEMENT TRUNK  QPC74C  RECORDED ANNCU TRUNK  QPC74C  NORTEL  QPC74C    QPC74C*    QPC74C-X  Recorder Announcement Trunk  QPC74CR  Recorder Announcement Trunk  QPC75-X  Rectifier Control (QSD4)  QPC755A    QPC757-X  D Channel Interface Card  QPC757B-X  D Channel Interface Card  QPC757D    QPC757D  NT D CHANNEL I/F CARD PRIME RT  QPC757D  NT D CHANNEL I/F CARD PRIME RT  QPC757E  D CHANNEL INTERFACE CARD  qpc757e    QPC757E  Channel Interface Card  QPC757E  NORTEL  QPC757E D  DCHI  QPC757Er  D-Channel Interace Card  QPC757F  D CHANNEL INTERFACE CARD  QPC757G  D CHANNEL INTERFACE CARD  qpc757g    QPC757G B  DCHI  QPC757GB  DCHI  QPC757Gr  D-Channel Interace Card  QPC757GSB    QPC757R  D Channel Interface Card  QPC75B  NT RECTIFIER CONTROL (QSD4)  QPC75B  NT RECTIFIER CONTROL (QSD4)  QPC775AE  CC  qpc775b    QPC775B  NT CLOCK CONTROLLER  QPC775C  SER.A CC ( Clock Controller )  QPC775C    QPC775C A  CC  qpc775c series a    QPC775C-X  Clock Controller  QPC775CR  Clock Controller Card (Canada)  QPC775F  CLOCK CONTROLLER  QPC775F  NT CLOCK CONTROLLER CARD (CANADIAN)  QPC775FN  Clock Controller Card  QPC775FN    QPC775FN    QPC775FR  Clock Controller Card  QPC789  16 PORT MW-VINTAGE A  QPC789  16 PORT MW-VINTAGE A  QPC789A  CARD  QPC789A    qpc789a    QPC789A  Ask for RON! 705-327-8691  qpc789a series c    QPC789A-003  NORTEL 16-PORT ANALOG MW / DND WAITING LINE CARD  QPC789A-X  Analog Line Card w/M/W 16  QPC789AR  16 Port Message Waiting Line C  QPC78G  DGT RECEIVER  QPC79-X  Digitone Receiver  QPC79F  DGT RCVR  QPC79F  Digital Receiver  QPC79F    QPC79F  Digital Receiver  QPC79G  SL1 DIGITONE RECEIVER  QPC79G    QPC79G    QPC79GR  Digitone Receiver  QPC79H  PACK CKT  QPC79H  DIGITONE RECEIVER  QPC79H    QPC79H  NT DIGITONE RECEIVER  QPC79H  NORTEL  QPC79H  NT DIGITONE RECEIVER  QPC79HR  Digitone Receiver  QPC79r  Digitone Receiver  QPC80  SL-1 10V CONVERTER  QPC80C  SL-1 10V CONVERTER  QPC80C-X  10V Converter Pack  QPC80CR  10V Converter Pack  QPC80D    QPC80D  NT 10V CONVERTER PACK  QPC80D  NORTEL  QPC80D  NORTEL  QPC80D-X  10V Converter Pack  QPC80E-X  10V Converter Pack  QPC80Er  10V CONVERTER PACK  QPC80F  10V CONVERTER PACK  QPC80F  10V Conversion Pack  QPC80F  NORTEL  QPC80F  10V Conversion Pack  QPC80F-X  10V Converter Pack  QPC80Fr  10V Converter Pack  QPC80G  10V CONVERTER PACK  QPC80G    QPC80G  10V Conversion Pack  QPC80G-X  10V Converter Pack  QPC80Gr  10V Converter Pack  QPC80H  10V CONV  QPC814  768 MEMORY CARD  QPC814  768 MEMORY CARD  QPC814A  768K MEMORY  QPC814A  768K MEMORY ERRC  QPC814A  NT 768K MEMORY PCP  QPC814AR  768K Memory  QPC82  SL-1 30V CONVERTER PACK  QPC82A    QPC82A    QPC82A-X  30V Converter Pack  QPC82B    QPC82B  NORTEL  QPC82B-X  30V Converter Pack  QPC82Br  30V Converter Pack B  QPC82C  PACK CKT  QPC82C    QPC82C  30V Conversion Pack  QPC82C  30V Conversion Pack  QPC82C-X  30 V Converter Card  QPC82Cr  30V Converter Pack C  QPC82E  30VOLT CONVERTER  QPC82E    QPC82E-X  30V Converter Pack  QPC82Er  30V Converter Pack E  QPC841-X  Four-Port SDI  QPC841A  QSD1  qpc841a    QPC841A  NT SERIAL DATA INTERFACE 4PORT  qpc841a series b    QPC841A-X  Four-Port SDI  QPC841Ar  SDI Card - 4 Port  QPC841C  NORTEL  QPC841C  NORTEL QSDI CARD  QPC841C  4 PORT SDI (SERIAL DATA INTERFACE) CARD  QPC841C  Contact Ron. 50% off all stock!  QPC841C  Ask for RON! 705-327-8691  qpc841c series a    QPC841CA  QSD  QPC841CN  30V Converter Pack  QPC841CR  30V Converter Pack  QPC84M    QPC84M  NORTEL  QPC84M  NORTEL  QPC84M*    QPC84M-X  Pwr Monitor Pack  QPC84Mr  Power Monitor Pack  QPC84P  NT POWER MONITOR PACK  QPC84P  POWER MON ENB  QPC84Pr  Power Monitor Pack  QPC84Q  PACK CKT  QPC84Q  SL-1 POWER MON  QPC84Q  NORTEL  QPC84Q  NORTEL  QPC84Q-X  Pwr Monitor Pack  QPC84R  PWR MON  QPC84R  Power Monitor Rack  QPC84R  Power Monitor Rack  QPC84S    QPC84S-REV-B  NORTEL / POWER MINITOR CARD / PWR MON / QPC84S-REV-B  QPC84Sr  Power Monitor Pack  QPC85B    QPC85B    QPC85C-X  5/12V Converter  QPC85D  DMS-1 5/12V CONVERTER  QPC85D  CONVERTER 5/12 CARD  QPC85D  CONVERTER 5/12 CARD  QPC85E    QPC85E    QPC85E  SL-1 5/12V CONVR  QPC90A    QPC90A    QPC936A  Contact Ron. 50% off all stock!  QPC936A  Ask for RON! 705-327-8691  QPC936A    QPC939  ROM CARD (RT NT XT)  QPC939-X  ROM Card  QPC939A  ROM CARD (RT NT XT)  QPC939AR  ROM Card  QPC939C  NT 8K ROM PCP  QPC940  ROM CARD (21)  QPC940A  ROM CARD (21)  QPC940A  NT 8K ROM PCP  QPC940A  NT 8K ROM PCP  QPC940Ar  ROM Card  QPC97338VJG-N  IC PC97338VJG  QPC97338VJG-N  IC PC97338VJG  QPC99-X  Carrier Interface (RPE)  QPC99F  CARRIER INTERFACE  QPC99F  SL-1 PE CARR INTERFACE  QPC99F  NT 1.5MB/S CARRIER INTERFACE  QPC99F  NORTEL  QPC99F  NT 1.5MB/S CARRIER INTERFACE  QPC99F F  QPC99F F  QPC99F-X  Carrier Interface (RPE)  QPC99FF  QPC99F F  QPC99FR  Carrier Interface  QPCCSFPCI  QPS QPCCSFPCI 3-Port FireWire PCI Adapter  QPCCSFPCI  PCI 3PT FWIRE ADPT  QPCCSFPCI  Q-see QPCCSFPCI 3-Port FireWire PCI Adapter  QPCCSFPCI  PCI 3PT FWIRE ADPT  QPCCSFPCI  PCI 3PT FWIRE ADPT  QPCCSFPCI  QPS Q-Stor 3 port FireWire PCI Card (PC/Mac)  QPCCSFPCI(1071)  PCI 3PT FWIRE ADPT  QPCCSFPCI-1  Q-STOR 3PORT FIREWIRE PCI CTLR ADAPTER  QPCCSFPCI-A1  Q-STOR 3PORT FIREWIRE PCI CTLR ADAPTER  QPCDRW241040I  QPS Que! Internal EIDE 24x10x40x CDRW Drive  QPCDRW241040I    QPCDRW401240I    QPCI1250AGFNN  IC PCI1250AGFN  QPCI1250AGFNN  IC PCI1250AGFN  QPCI4450GJG-N  IC PCI4450GJG  QPCI4450GJG-N  IC PCI4450GJG  QPCRD-BP1500P  CD-RW DESKTOP DRIVE  QPCRD-BP1500P  CD-RW DESKTOP DRIVE  QPCRD-BP1500P  CD-RW DESKTOP DRIVE  QPCRH1204220M  COIL  QPCRH1205220M  COIL  QPD 3A2  POWER PLANT  QPD308  INDOOR DOME CCD COLOR CAM 30FT NIGHT VISION  QPD308  Q-SEE INDOOR DOME COLOR CCD KITPERP W/ 23 IR LEDS - 30FT NIGHT V  QPD308  Dome CCD Color Camera  QPD308  INDOOR DOME CCD COL CAM 30FT NIGHT VISION  QPD308  Q-SEE INDOOR DOME DAY & NIGHT+1D  QPD308-1  INDOOR DOME CCD COL CAM 30FT NIGHT VISION  QPD308-A1  INDOOR DOME CCD COL CAM 30FT NIGHT VISION  QPD308-A1  Dome CCD Color Camera  QPD308-B2  Dome CCD Color Camera  QPD40S  40mb 19ms SCSI 3.5 HH  QPD425S  425Mb 10ms SCSI 3.50HH  QPDVRW44244FNB  4*4*24*4 PCMCIA DVD-CDRW/New  QPE 1A    QPE 4A    QPETX330005    QPF22A  CONN PCB BOX 2X5 ARRAY 0.150 PITCH AU MALE  QPF23A  TERMINATING PLUG  QPHFZ-24-B-3Y    QPI-1L    QPI-ABD-201-H    QPIP1205-207-1    QPIP1205-207-1    QPJ 20A  LINE ADDRESS MEMORY  QPJ 21B  CLOCK & RINGING CONTROL  QPJ 22B  IMPULSE ANALYZER  QPJ 26B  ATTENDANT CONTROL #1  QPJ 28A  COS SELECT 40 LINE  QPJ 31B  TRUNK BUFFER #1  QPJ 32A  TRUNK BUFFER #2  QPJ 34A  LINE BUFFER  QPJ 36A  LINE CIRCUIT  QPJ 37A  UNIT DECOUPLING  QPJ 40A    QPJ 42A  TRUNK BUFFER  QPJ 43A  +5 VOLT REGULATOR  QPJ 44A  20Hz RINGING GENERATOR  QPJ 48A  ATTENDANT INTERFACE #1  QPJ 49A  ATTENDANT INTERFACE #2  QPJ 61A  TAFAS CONTROL (W/OUT CAMP-ON)  QPJ 63A  ATTENDANT OPTION CONTROL  QPJ 69A  E&M/DX SIGNALING TRUNK  QPJ 81C  CO/FX/WATS TRUNK (GAIN)  QPJ 81G  CO/FX/WATS TRUNK (NON GAIN)  QPJ2D100L2P  WILL BEAT LOWEST PRICE BY 20%  QPJ81B  SER. B  QPL11276  RP SLEEVE  QPL20CR05CCR05CG222J  CAPA CERA COG 2,2nF 50V 2P  QPL302    QPL312QB    QPL334QB    QPL39014KR05M3901401  CAPA CERA X7R 4,7nF 100V 2P  QPL39014KR06M3901402  CAPA CERA X7R 470nF 50V 2P  QPL54S475QB    QPLGZ0609REZZ  OEM EXCESS  QPLGZ1826CEZZ  OEM EXCESS  QPLS240USB  QPS LS240 EXTERNAL USB SUPERDISK  QPLS240USB  QPS LS240 EXTERNAL USB SUPERDISK  QPM 990B    QPM 991A  CKT PACK (TOPS) SP  QPM-11.0592MHZ  CRYSTAL  QPM-12.000MHZ  CRYSTAL  QPM-14.31818MHZ  CRYSTAL  QPM-14.7456MHZ  CRYSTAL  QPM-16.000MHZ  CRYSTAL  QPM-18.432MHZ  CRYSTAL  QPM-20.000MHZ    QPM-20.000MHZ  CRYSTAL  QPM-22.1184MHZ  CRYSTAL  QPM-24.000MHZ  CRYSTAL  QPM-24.576MHZ-F  CRYSTAL  QPM-25.000MHZ  CRYSTAL  QPM-3.579545MHZ  CRYSTAL  QPM-3.6864MHZ  CRYSTAL  QPM-8.000MHZ  CRYSTAL  QPM25A-32.768KHZ  STOCK, $100 MIN, ERAI MEMBER  QPM25A-32.768KHZ  Factory New 1- 2 days Delivery  QPM25B-32.768KHZ  CRYSTAL  QPM35A-32.768KHZ  CRYSTAL  QPM35B32768KH    QPM995A  TOPS TUTOR TNG ADPTR  QPMA-0371  SEMICONDUCTORS  QPMA-0373  SEMICONDUCTORS  QPMD0301-TR1    QPND-4023    QPND-4023    QPND-4023  7-10 Days  QPND-4026  SEMICONDUCTORS  QPND-4101  SEMICONDUCTORS  QPND-4149    QPND-4149    QPND-4149    QPND-4149    QPND-4365  SEMICONDUCTORS  QPND-4376  SEMICONDUCTORS  QPND-4465    QPND-4465    QPND-4465  7-10 Days  QPND-4613    QPND-4613    QPND-4613  7-10 Days  QPND-4746    QPND-4746    QPND-4746  7-10 Days  QPND-4956    QPND-4956    QPND-4956  7-10 Days  QPND-4956    QPND-4956    QPND4139  STRONG OEM EXCESS! SAME DAY CONFIRMATION! $1000 min!  QPND4140  STRONG OEM EXCESS! SAME DAY CONFIRMATION! $1000 min!  QPND4140/DIE  STRONG OEM EXCESS! SAME DAY CONFIRMATION! $1000 min!  QPND4257-DIE  STRONG OEM EXCESS! SAME DAY CONFIRMATION! $1000 min!  QPO-14.31818MHZ  CRYSTAL  QPO-20.0000MHZ  CRYSTAL  QPO-23.040MHZ  CRYSTAL  QPO-3.6864MHZ  CRYSTAL  QPO-32.0000MHZ  CRYSTAL  QPO-32.000MHZ  CRYSTAL  QPO-32.7680MHZ  CRYSTAL  QPO-37.500MHZ  CRYSTAL  QPO-40.000MHZ  CRYSTAL  QPO-49.920MHZ  CRYSTAL  QPO-50.0000MHZ  CRYSTAL  QPO-56.448MHZ  CRYSTAL  QPO-62.000MHZ  CRYSTAL  QPO-66.667MHZ  CRYSTAL  QPO24.000MHZ  CRYSTAL  QPO3V-32.110MHZ-CJ    QPO3V-32.110MHZ-CJ    QPO3V-32.110MHZ-CJ  STOCK  QPO3V-8.1920MHZ-C    QPO3V50.000MHZ  SMT  QPP 351C  RECEIVE CARD  QPP 351D  RECEIVE CARD  QPP 352A  ALARM UNIT  QPP 352A    QPP 352B  SLAVE ALARM UNIT  QPP 352C    QPP 352C B  ALARM UNIT  QPP 352C C  ALARM UNIT  QPP 352E  ALARM UNIT  QPP 353A    QPP 353A  POWER UNIT  QPP 353A E  POWER UNIT  QPP 353B    QPP 353B  POWER UNIT  QPP 354D1  DPO  QPP 354E  DPO  QPP 354E C  DPO  QPP 354E1  DPO  QPP 354E1 A  DPO  QPP 354E2  DPO  QPP 355B  SDPO  QPP 355B1  SDPO  QPP 355D1  SDPO  QPP 355F  SDPO  QPP 355G  SDPO  QPP 356B1  DPT  QPP 356B1    QPP 356D1  DPT  QPP 356F  DPT W/INTEGRITY CHECK  QPP 356G1  DPT/OGT  QPP 356G2  DPT/OGT  QPP 356G2*  NORTEL  QPP 356G2*    QPP 356SB  NORTEL  QPP 356SB    QPP 357A  4W E&M  QPP 357B  4W E&M  QPP 359D  2W E&M 900 OHMS  QPP 359D1  2W E&M 900 OHMS  QPP 359S  2W E&M 900 OHMS  QPP 365B  4 W E&M  QPP 365B  NORTEL  QPP 365C  NORTEL  QPP 365C    QPP 365S  4 W E&M  QPP 365SC  NORTEL  QPP 365SC    QPP 366A  2W E&M 600 OHM  QPP 366B  2W E&M 600 OHM  QPP 366B    QPP 367B    QPP 367S  2W E&M 900 OHM  QPP 370A  2W FXS  QPP 370M  2W FXS  QPP 371A1  2W FXO  QPP 371M  2W FXO  QPP 373A    QPP 373A  FUSE & ALARM 1  QPP 373A B  FUSE & ALARM 1  QPP 374A  FUSE AND ALARM  QPP 374A    QPP 374A NO PEG  NO PEG COUNT METERS  QPP 374B  FUSE AND ALARM 2  QPP 374B B  FUSE AND ALARM 2  QPP 374B C  FUSE AND ALARM 2  QPP 374C    QPP 374C  NORTEL  QPP 407A  NORTEL  QPP 408B SER.P  UNIV. LINE CARD E/W REORDER TONE CT  QPP 409D    QPP 411A  NORTEL  QPP 411A    QPP 413A  DRIVER UNIT  QPP 413A SER.B  DRIVER UNIT  QPP 413A SER.C  DRIVER UNIT  QPP 413A SER.K  DRIVER UNIT  QPP 414A SER.B  LOCAL SWITCH  QPP 415A  LOCAL LINK  QPP 415A SER.B  LOCAL LINK  QPP 416A  LOCAL LINK DETECTOR  QPP 416A SER.C  LOCAL LINK DETECTOR  QPP 417A  ADDRESS CONTROLLER  QPP 417A SER.A  ADDRESS CONTROLLER  QPP 418A  ADDRESS CONTROLLER  QPP 418A  NORTEL  QPP 418A    QPP 418A SER.A  ADDRESS CONTROLLER  QPP 418A SER.B  ADDRESS CONTROLLER  QPP 418A SER.C  ADDRESS CONTROLLER  QPP 419A  NORTEL  QPP 419A    QPP 419A SER.A  DIGROUP UNIT  QPP 419A SER.D  DIGROUP UNIT  QPP 419A SER.E  DIGROUP UNIT  QPP 419A SER.K  DIGROUP UNIT  QPP 419A SER.L  DIGROUP UNIT  QPP 419A SER.M  DIGROUP UNIT  QPP 420A  ALARM UNIT  QPP 420A SER.B  ALARM UNIT  QPP 420A SER.C  ALARM UNIT  QPP 420A SER.D  ALARM UNIT  QPP 420A SER.E  ALARM UNIT  QPP 420A SER.F  ALARM UNIT  QPP 421A  ALARM UNIT  QPP 421A  NORTEL  QPP 421A    QPP 421A SER.A  ALARM UNIT  QPP 421A SER.C  ALARM UNIT  QPP 421B  NORTEL  QPP 421B    QPP 421B SER.A  ALARM UNIT  QPP 422A SER.B  RING DISTRIBUTION UNIT  QPP 422B SER.A  RING DISTRIBUTION UNIT  QPP 423A    QPP 423A SER.B  RING DISTRIBUTION UNIT  QPP 423A SER.E    QPP 423A SER.G    QPP 423A SER.H    QPP 424B SER.A    QPP 424B SER.B    QPP 424B SER.D    QPP 424B SER.F    QPP 425A    QPP 426A SER.A  RING GENERATOR 20HZ  QPP 426A SER.C  RING GENERATOR 20HZ  QPP 426A SER.E  RING GENERATOR 20HZ  QPP 426A SER.F  RING GENERATOR 20HZ  QPP 426A SER.H  RING GENERATOR 20HZ  QPP 426B SER C  RINGING GENERTER 25 HZ  QPP 426C  RING GENERATOR 30 HZ  QPP 427A  REORDER TONE GENERATOR  QPP 427A SER.A  REORDER TONE GENERATOR  QPP 429A SER.H    QPP 430A SER.K  300V CONVERTER  QPP 430B SER.B  SYSTEM CONTROLLER  QPP 430B SER.D