12P3935X022-POWER-SUPPLY
日期：2018-10-81 引言
随着企业生产变化，方大特钢4500nm3/h制氧由最初定位的过渡机组变成了主力机组，为提高该制氧机组运行的性能，2010年1月对该机组控制系统实施了全面改造，由常规仪表结合小型plc控制改为dcs系统控制，所采用的dcs系统为hollias-macs系统，所有控制信号点均进入dcs系统，经过1个余月时间安装、调试，完成了改造工程。实现了：空压机、膨胀机、氧压机、氮压机启停自动控制及联锁，分子筛系统自动控制、空分装置调节阀自动控制、空压机、膨胀机双油泵互备控制等功能。
2010年4月初，4500nm3/h制氧开机，从运行情况看，所设计的主控制方案满足了系统需要，但由于4500制氧机组本身的特性，加上组态时局部的漏项，部分报警参数、画面的设置仍存有一定的不合理性，为此在设备运行期间多次进行了在线修改、下装，
hollias-macs系统良好的无扰动下装、增量下装功能，在线下载一直没有影响设备的正常运行。但2010年6月20日的一次程序下载，不仅引起了空分装置停机，同时造成了空压机烧瓦重大事故发生。dcs程序下载引起装置停机可以想象（行业内有事例）；造成空压机烧瓦却难以理解，表明空压机的自动联锁都没有发生作用。为此专门组织力量对本次事故进行剖析。
2 事故描述
2010年6月20日10:30左右，由于v1212阀门阀开信号未在规定的时间闭合，造成分子筛切换系统控制程序自动转为暂停。
分子筛系统控制程序是制氧机组的主控制程序，是通过dcs系统控制14个阀及电加热器的周期动作。执行1#分子筛吸附器“卸压→加热→冷吹→充压→切换”——2#分子筛吸附器“卸压→加热→冷吹→充压→切换”动作，除系统初始化步，控制系统共分10步动作，不断循环，两个分子筛吸附器轮流工作、再生。一旦不能正常运行或故障较长时间不能发现，将影响生产正常运行，甚至较长时间停产。v1212阀位开关不到位造成分子筛程序暂停已出现数次，虽经处理，但经过一段时间运行后，总是不理想（并且经常处于报警临界状态），给生产造成了一定影响。
v1212阀门实际动作是正常的，只是阀位反馈不正常。程序设计是：阀位反馈与阀门动作不同步超30S报警，且联锁程序转为手动。为此对程序进行修改，同时进行了下装（考虑到和利时系统可以增量下装），但在本次下装后，却最终造成了制氧机组的停机，空压机烧瓦事故。
3 事故分析
程序下装因素造成设备停机是可预测的，但程序下装造成空压机烧瓦事故难以理解。在本案例中，程序下装后，各联锁都没有发生作用，油泵没有联锁启动，压缩机没有联锁停机，这是很不正常的现象。
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LUCENT AYA MERLIN MESSAGING 12-PORT CARD
Orinoco Lucent IBM WePOINT-ll we point 2 aya
aya Lucent Merlin Magix 100 DCD 617T15
AT&T/Lucent/aya 408 GS/LS-MLX
Lucent Off-Premises Range Extender 122C-215 At&t aya
AT&T/Lucent/aya 408 GS/LS-MLX
aya 32MB ATA Memory Card PG-5E386 Lucent Definity
aya Lucent AT&T HIC-1 Coiled Cord
Lucent aya Definity TN2182B Tone Clock Card V1 R2
Lucent aya Definity TN2224 2W DIGITAL LINE V5 24PORT
Lucent/aya TransTalk-556 RadioModule 4 cordless phone
Lucent aya ACS Phone System Small Business Vmail Pkg
Lucent aya Definity TN2224B 2W DIGITAL LINE V3 24PORT
PHONE AYA LUCENT 6408D 2 LINE SPEAKER 10
AT&T Lucent aya Phone system + 8 voice terminals plus
aya Lucent AT&T Partner 5 slot carrier cabinet system
aya Lucent Partner Mail VS R5 Voicemail Module 2-Port
Lucent aya 8403 Phone Black
AT&T Lucent aya Partner 206E Module R3.1 Working
Lucent aya Definity TN754 Digital Line Card Module
aya Lucent 8434DX Black 8434D04A 107707986 Guaranteed
aya Lucent Definity TN464HP DS1 PRI Card
AT&T Lucent aya Partner 206 Module R4.1 Working
aya Lucent AT&T Definity TN752 V19 Analog Line Card
Lucent aya Merlin Magix 4424D+ Phone w/ Warranty
9 AT&T Lucent aya 408 GS/LS-MLX
AYA LUCENT BU3200A BATTERY BACKUP UNIT AT&T DEFINITY
aya Lucent Definity 100A Analog Adjunct Interface
AYA LUCENT PARTNER REMOTE ACCESS CARD from 2002
10 AT&T Lucent aya Modules
008 MLX , 012 RING GEN , R3 PROCESSOR , 400 GS/LS/TTR
LUCENT AYA MLX20 BUSINESS PHONE**BRAND
Lucent aya AT&T Partner 206E Module R3.1
25 Cat 5e Orange Jacks for aya / Lucent
Lucent aya AT&T Partner 206E Module R4.1
Partner ACS R6.0.B Multi-Use Upgrade Card Lucent aya
aya/Lucent Partner MLS 12D (Black)
Grey Lucent aya 6408D+ Telephone - Open Box
Partner 18D Handset Euro aya Lucent Magix Black
Lucent / aya Partner Phone System 3.0
5 AYA PARTNER LUCENT 18D 18-D REFURBISHED
aya Lucent AT&T 8434DX Cleaned - Black
AT&T 103D2 200E Module Partner Lucent aya att Guarant
AYA LUCENT DEFINITY 120A6 CSU MODULE
aya Lucent AT&T 8410D Cleaned - Black
aya Lucent Partner Advanced Communication System
aya Lucent Partner 308EC module Release 3.0 Caller ID
AYA LUCENT PARTNER ACS - 103G9 308EC R3.0 MODULE
aya Legend Processor 517D33 R3 LUCENT / AT&T
aya Lucent 8410D Black 8410D03A 107702870 Guaranteed
aya Lucent AT&T (6) 3 ACS 509 R7 and 3 206E
Lucent Partner Advanced Communication System
aya Lucent AT&T Partner II Processor Expansion Cable
LUCENT / AYA PARTNER TELEPHONE SYSTEM & 29 PHONES
aya Lucent Partner 103G8 (28) PBX Complete System
aya Lucent ATT Partner 400EC 4 lines Caller ID Module
aya Model 103G4 plus 2 Lucent phones
AYA LUCENT PARTNER ACS 308 PROCESSOR R3.0 w/ PC Card
Merlin Magix 412 TDL 617B52 aya lucent 412TDL waratny
Lucent aya TN168B V4 System Access Card Refurbished
aya Lucent Merlin Magix 412 TDL LS-ID.
Lucent aya AT&T 8410D Phones 5
Lucent aya AT&T 8410D Phones 5
aya Lucent AT&T Merlin Legend Magix MLX 10DP Phones
Lucent aya AT&T 8410D Phones 5
Lucent aya AT&T 8410D Phones 5
aya TN2182C Lucent Definity Tone Clock Card V4
AYA LUCENT PARTNER - 103G9 308EC 200E R3.0 MODULES
Lucent aya Partner Business Office Phone System
25 Cat 5e White Jacks for aya / Lucent
AYA LUCENT MERLIN MAGIX PHONE SYSTEM W/ 10 PHONES
aya Definity 120A3 CSU Module 106606536 lucent warnty
19 Lucent aya telephones with 17 bases, NR
aya Lucent Partner ACS - 103r
25 Cat 5e Ivory Jacks for aya / Lucent
AT&T/Lucent/aya Legend 391A Power Unit Power Supply
Lucent aya Definity TN1650B 32MB Memory Card v6
AT&T LUCENT AYA DEFINITY 8102M PHONE WITH WARRANTY
Lucent Partner 539C5 Phone System Card
Lucent Partner ACS 103G7 Phone System Card
Partner 308 ACS Processor R 6.0 Lucent aya R6.0.B
7 AYA LUCENT DEFINITY 7434D 7434D01A-003 PHONE
LUCENT /AYA MEMORY CARD 2 MEGABYTE 3
aya Lucent AT&T Merlin Legend Magix MLX 28D Phones
LUCENT/AYA PARTNER 206E 4.1 MODULE
10 AT&T LUCENT AYA 6220 PHONES WITH WARRANTY
AT&T 5 Handsets Partner Euro Difinity Lucent aya att
AT&T MLX-5 BU3156-OBB Merlin Ledgend Lucent aya att G
aya Lucent TN2224 2W Digital Line V7 Definity Card
Lucent Partner aya 18D Button Display Telephone gray
Lucent Partner aya 18D Button Display Telephone BLACK
LUCENT PARTNER PROCESSOR R3.1 MODULE R 3.1 AYA
lot 2x Lucent/aya Partner 18D phone; 7311H14E-003 A+
Lucent aya MAX R3000 Remote Office Communicator
aya Lucent AT&T Partner Phone System with Voice Mail
Lucent aya Partner Mail VS Expansion 4 Port 20 M. Box
AT&T LUCENT AYA 6220 PHONE WITH WARRANTY
aya Lucent Definity 1152A1 Power Distribution Unit
LUCENT AYA TN2501AP HV2 IP VOICE ANNOUNCEMENT CARD
aya Lucent ACS 308 308EC Rel 2.0-7.0 Power Supply
12 Lucent aya Definity 6416D+ Grey Telephones
aya Lucent Partner 18D Office Telephone- GREAT SHAPE!
aya Lucent ACS 509 Rel 2.0-7.0 308A4 Power Supply
3 Lucent aya MLX-10DP/20L Phone + Expansion Module
aya Lucent Partner 18D Black
aya Definity TN772 Lucent Definity Duplication Interf
Partner Phone System Power Cord Lucent aya Guaranteed
Partner Phone System Power Cord Lucent aya Guaranteed
3 AT&T LUCENT AYA 6220 PHONES WITH WARRANTY
Partner Phone System Power Cord Lucent aya Guaranteed
Lucent aya AHF110 V2 TDM LAN Bus Term Module
Partner Phone System Power Cord Lucent aya Guaranteed
Partner Phone System Power Cord Lucent aya Guaranteed
AT&T LUCENT AYA DEFINITY 6408 6408D+ PHONE W/WARRANTY
Partner Phone System Power Cord Lucent aya Guaranteed
AYA LUCENT RPSD/LOCK-V4 Remote Port Security Device!!
aya Lucent ATT 6219 6221 Telephones Quick Reference
AT&T aya Lucent MDW 9010 Transtalk Wireless Phone 556
AT&T 5 Handsets AD1C2 930 960 962 1845 Lucent aya att
aya Lucent AT&T 2554 MMGN Analog Phone - Black
AYA LUCENT 4412D+ 12 LINE BUSINESS TELEPHONE LCD
aya Lucent AT&T 2554 YMGM Analog Phone - Black
LUCENT AYA PARTNER 18D BUSINESS TELEPHONE
LUCENT AYA PARTNER 18D BUSINESS TELEPHONE
aya Lucent AT&T 8434DX Cleaned - White
LUCENT AYA PARTNER 18D SERIES 2 BUSINESS TELEPHONE
LUCENT AYA PARTNER 18D SERIES 2 BUSINESS TELEPHONE
aya Lucent Merlin 10A4 2MB Translation Card
2 aya Lucent Partner Euro 34D White Telephones
aya Lucent Partner Euro 18D White Telephone
Lucent aya Definity TN799B C-LAN V1 Card
Lucent / aya Partner ACS Office Phone System
3 Lucent./aya 6408D+ Multi-Line Telephone
aya Lucent AT&T 2500 YMGK Analog Phone - Black
aya Lucent Definity 1152A1 Power Distribution Unit
Lucent aya Definity TN747B CO Trunk V26 Card
3 Lucent aya PARTNER 18 Telephones EUROSTYLE
aya Lucent AT&T DS1 Interface TN767E V18
Lucent aya Definity TN2224B 2W Digital Line V10
AYA Lucent Definity TN2182C TONE CLOCK V4 Module
aya Lucent Definity Telecom Processor UN331B V10
aya Lucent AT&T 2554 MMGJ Analog Phone - White
Lucent aya Definity Server Parts TN2224B Server Board
Lucent aya Definite Server TN2224B Server Board
aya Lucent AT&T 2500 YMGP Analog Phone - Black
Lucent aya Definity Systems Bus Terminator AHF104 V2
aya Lucent AT&T Amplified Handset - Black
Lucent aya Definity System TN2224B V3 2W Digital Line
Lucent aya Definity System TN2224B V3 2W Digital Line
aya Lucent AT&T 2500 YMGM Analog Phone - Black
Lucent aya Definity Systems Bus Terminator AHF104 V2
Lucent aya Definity System TN2224B V3 2W Digital Line
aya Lucent AT&T 2500 YMGL Analog Phone - Black
Lucent aya Definity Systems Bus Terminator AHF104 V2
Lucent aya Definity Systems Bus Terminator AHF104 V2
aya Lucent Merlin Legend Power Unit (391A3)
Lucent aya Definity Systems Current Limiter CFY1B V3
aya Lucent ATT Merlin Legend 391A1 Power Unit Supply
Lucent aya Definity Systems TN747B V9 Announcement
Lucent aya Definity Systems TN758 V4 Pooled Modem
aya Lucent ATT Merlin Legend 391C1 Power Unit Supply
Lucent aya Definity TDM Lan Bus Terminator ZAHF4 V2
Lucent aya Definity TDM Lan Bus Terminator ZAHF4 V2
LUCENT/AYA PARTNER MLS-12 BLACK (3151-05B) REFURB
Lucent aya Definity TDM Lan Bus Terminator ZAHF4 V2
Lucent aya Definity TDM Lan Bus Terminator ZAHF4 V2
aya Lucent ATT Merlin Legend 391A2 Power Unit Supply
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Lucent aya Definity TDM Lan Bus Terminator ZAHF4 V2
aya Lucent AT&T 2500 Series BMW Analog Phone - Ivory
aya Lucent Definity 1152A1 Power Distribution Unit
AT&T LUCENT AYA DEFINITY 8102M PHONE WITH WARRANTY
AYA LUCENT BIS 10 BIS-10 MERLIN BUSINESS PHONE 10 KEY
aya Lucent Definity 1152A1 Power Distribution Unit
aya Lucent ATT Merlin Legend 391A3 Power Unit Supply
2 AYA LUCENT BIS BIS-10 MERLIN BUSINESS PHONE 10KEY
3 AYA LUCENT BIS BIS-10 MERLIN BUSINESS PHONE 10KEY
3 Pack of aya Lucent Trays MLX 5 10 10 Partner Phones
4 AYA LUCENT BIS BIS-10 MERLIN BUSINESS PHONE 10KEY
6 AYA LUCENT BIS BIS-10 MERLIN BUSINESS PHONE 10KEY
aya Lucent Partner ACS 6.0 Processor Standard
AYA LUCENT BIS BIS-10 MERLIN BUSINESS PHONE 10KEY
aya Lucent Definity TN754B 8 Port Digital 63114 (4)
AYA LUCENT BIS BIS-10 MERLIN BUSINESS PHONE 10KEY
AYA LUCENT MERLIN BUSINESS PHONE MLX-16DP DISPLAY
Lucent aya Definity TN793B 24 Port Analog V2 Card
AYA LUCENT MERLIN II BUSINESS PHONE 7318H01A
LUCENT MERLIN DSS EXPANSION CONSOLE 604D1-003 60 BUTTON
aya Lucent Definity TN747B 8 Port CO Card 63115 (4)
LUCENT AYA MERLIN 6.0 UPGRADE TO MAGIC CARDS 4
AYA LUCENT MERLIN BUSINESS PHONE MLX-20L DISPLAY
aya Lucent AT&T Definity TN777B V23 Network Control
AYA LUCENT MERLIN BUSINESS PHONE MLX-20L DISPLAY
AYA LUCENT MERLIN BUSINESS PHONE MLX-16DP DISPLAY
aya Lucent AT&T Definity TN754B V2 Digital Line Card
AYA LUCENT BIS-34D MERLIN BUSINESS PHONE 34 BUTTON
aya Lucent AT&T Definity TN776 V24 Expansion Inteface
Lucent AYA Telephone System Main Console
AT&T aya Lucent Definity TN746B v7 ANALOG LINE CARD
aya Lucent AT&T Definity TN776 V19 Expansion Inteface
Lot 3 aya/Lucent Loopback Jacks 700A-107988867
AYA LUCENT BUSINESS PHONE ACCESORIES CORDS/BOXES
aya Partner ACS Business Office Phone System Lucent
LARGE AYA LUCENT PHONE HAND SETS AND CORDS
Partner Phone Stand Euro 18 or 18D Lucent aya
aya Lucent AT&T Definity TN775B V2 Maintenance Pack
Partner Phone Stand Euro 18 or 18D Lucent aya
aya Lucent AT&T Definity TN756 V13 Tone Detector
Partner Phone Stand Euro 18 or 18D Lucent aya
AT&T/Lucent 8434DX Phone
aya Lucent AT&T Definity TN767E V18 T1 DS1 Interface
Lucent aya TN8412AP card S8400 Server IP Interface 7
Definity TN2182B V1 Lucent aya Tone Clock
Definity TN2182B V1 Lucent aya Tone Clock
aya Lucent AT&T Definity TN767D V5 T1 DS1 Interface
Partner MLS 12 Telephone Phone Lucent aya Guaranteed
Lucent (aya) - MLX-10DP
aya Lucent AT&T Definity TN765 V17 Processor Inteface
Lucent (aya) - MLX-16DP
Lucent aya Partner Messaging R1.0 Hard Drive Warranty
aya Lucent Partner ACS 6 Processor PBX Phone System
The $250.00 Price will come with a 12 month Warranty
Lucent aya Partner Euro 34D Black 1 YR Warranty Mint
aya Lucent AT&T Definity TN754 V15 Digital Line Card
aya Lucent Definity 1152A1 Power Distribution Unit
AT&T Lucent aya Merlin Legend Analog PBX Phone System
aya Lucent AT&T Definity TN754B V16 Digital Line Card
aya Lucent Difinity cards 12
LUCENT AT&T AYA DEFINITY TN570B EXPANSION INTERFACE
aya Lucent AT&T Definity TN767E V21 T1 DS1 Interface
LUCENT AT&T AYA DEFINITY TN765 PROCESSOR INTERFACE
LUCENT AT&T AYA DEFINITY TN2182B TONE CLOCK CARD V1
aya Lucent AT&T Definity TN754 V12 Digital Line Card
AT&T Handsets K Style Partner Difinity Lucent aya att
aya Lucent AT&T Definity TN748D V7 Tone Detector Card
AT&T 517A21 008 MLX Merlin Legend Lucent aya att Guar
AT&T LC94 8 Port Aux LC 94 NIB Lucent aya att Gua
aya Lucent AT&T Definity TN464F V4 DS1 INTFC 24/32
AT&T 6100 Feature Package 1 Merlin Lucent aya att Gua
Partner MLS 12 Telephone AT&T Lucent aya Guaranteed
aya Lucent AT&T Definity TN744D V1 Call Class DET
Partner MLS 12 Telephone AT&T Lucent aya Guaranteed
(6) AT&T Lucent aya MLX Telephones 20L, 10DP & 10D
aya Lucent AT&T Definity TN748D V1 Tone Detector Card
16 LUCENT AYA 8410B Black Phones
8 LUCENT AYA 8410D Black Phones
aya Lucent AT&T Definity TN754B V3 Digital Line Card
Lucent aya Definity Systems Current Limiter CFY1B V3
aya Lucent AT&T Definity TN767E V10 T1 DS1 Interface
5- AT&T Lucent aya Legend Phone Telephone MLX-28D
aya MLX10DP LEGEND LUCENT BRANDED (1) phone
aya Lucent AT&T Definity TN754C V2 Digital Line Card
aya MLX20L Operator station LUCENT BRANDED (1) phone
5 Lucent aya 6416D+ 6416D+M Business Phones
aya Lucent AT&T Definity TN754B V4 Digital Line Card
AYA BOGEN LUCENT call stacker for paging system $3800
LUCENT aya Definity ZE801A 24-Button Expansion Module
aya Lucent AT&T Definity TN768 V8 Tone Clock Card
Lucent/aya ML2LC SC-8FT
aya Lucent AT&T Definity TN2224B V12 2W Digital Line
Lucent aya PacketStar 6401 IP Switch
Lucent Definity TN2464, V20, DS1 INTFC 24/32 card
aya Lucent AT&T Definity TN2224B V3 2W Digital Line
AYA Lucent Definity UN330B V5 Duplication INTF Module
AYA Lucent Definity TN2211 V6 Optical Drive Module
aya Lucent AT&T Definity TN746B V7 Analog Line Card
aya Lucent Definity Telecom Processor UN331B V10
AYA Lucent Definity TN767E V18 DS1 Interface
aya Lucent Partner Phone System w Voice Mail 8 Phones
aya Lucent UN332C V8 MSS/Network Controller Card
AT&T aya Lucent Definity TN750C v9 ANNOUNCEMENT CARD
aya Lucent AT&T Definity TN746B V6 Analog Line Card
AYA Lucent Definity TN727 V15 Module
aya Lucent AT&T Definity TN747B V24 CO Trunk Card
aya Lucent Definity TN744D V3 Call Class-Det Card
AYA Lucent Definity TN731B V4 Module
aya Lucent AT&T Definity TN747B V12 CO Trunk Card
AT&T aya Lucent Definity TN750C v9 ANNOUNCEMENT CARD
aya Lucent AT&T Definity TN748D Tone Detector Card V7
aya Lucent AT&T Definity TN429D V2 DIOD/CO Trunk Card
AYA Lucent Definity TN767E V39 DS1 Interface
3 ZAHF4 V2 TDM LAN Bus Terminator aya Lucent Definity
aya Lucent AT&T Definity TN746B V4 Analog Line Card
4 ct AHF 105 Bus Terminator V2 aya Lucent Definity
aya Lucent Partner Phone System w Voice Mail 5 Phones
4 AHF111 V1 PX Terminator aya Lucent Definity
3 Lucent aya Definity Current Limiter CFY1B V3
aya Lucent AT&T Definity TN747B V11 CO Trunk Card
AT&T 31730A S101A Hands-Free Lucent aya att Guarantee
AT&T 511A Control Unit Merlin Legend Lucent aya att
aya Lucent AT&T Definity TN747B V8 CO Trunk Card
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5 ATT LUCENT AYA PARTNER 18D OFFICE BUSINESS PHONES
aya Lucent AT&T Definity TN790 V14 Processor Card PBX
AYA TN793 V6 ANALOG Line Lucent 99DR11136160
6 ct Lucent aya Definity TN1650B 32 MB Memory Card V4
Lucent aya ACS Phone System Small Business Start-up
LOT 2 aya Lucent Definity TN746B v10 ANALOG LINE CARD
Lucent aya Merlin Legend 408 GS/LS-ID-MLX Module
5 aya Lucent AT&T Announcement TN750C V9
Lucent aya Definity TN726B 8 Port Data Line V3
Lucent aya Definity TN744D CALL CLASS-DET V1
Lucent aya Definity TN799B C-LAN V1 Card
9 AYA and Lucent 6408D+ TELEPHONE!!!
SEALED AYA LUCENT TN793B 24 PORT ANALOG PACK
AT&T Lucent aya 962 Speaker Phone 2-Line Caller ID
aya / Lucent 302C Console and 26C DSS Button
Exact phone and button panel as shown in the pictures
aya Lucent AT&T Partner II 400E R2.0 Module 103D
LUCENT AYA DEFINITY 6424D+M PHONE
Lucent aya Definity 6408D+ Phone -Warranty!
: 3 Lucent Partner 6 Black Display Phones
3 Lucent Partner 18D Black Display Telephones
AT&T/LUCENT/AYA MERLIN LEGEND 016 W GENERATOR CARD
LOT 5x aya Lucent Definity TN2224 v4 2W Digital Cards
LOT 5x aya Lucent Definity TN2224 v5 2W Digital Cards
aya Lucent Tn763D Auxiliary Trunk Card definity tn763
5- AT&T Lucent aya Legend Phone Telephone MLX-28D
5- AT&T Lucent aya Legend Phone Telephone MLX-28D
AT&T LUCENT AYA MERLIN LEGEND 008 MLX MODULE
AT&T U3179-10W Lucent aya ATT Callmaster III Guarante
AT&T 103C3 107089302 Partner Lucent aya att Guarantee
LUCENT AYA MAGIX 4412D+ BLACK PHONE 4412 A01 WARRANTY
AT&T 951 Lucent Speaker Phone Set ATT aya Guaranteed!
Lucent aya ACS Phone System Small Business Startup
AT&T MLX-10 Merlin Ledgend Lucent aya att MLX10 MLX 1
AT&T 2 Wall Mount MLS Bases Partner Lucent aya att Ne
Lucent L13 Memory Card 2MB J58890TG-1 L-13 aya
AT&T 529A Merlin Plus Module 105202113 Lucent aya ATT
3 LUCENT AYA PARTNER 18 BUSINESS TELEPHONES
Lucent aya Definity TN747B CO TRUNK 8 PORT ANALOG
Lucent Definity Systems TN744C V3 Call Class Board
Lucent aya Definity Systems TN763D V5 Aux Trunk Board
AYA LUCENT TN2224B 24 PORT DIGITAL CIRCUIT 108276148
Lucent Definity Systems TN777B V20 Network Control
Lucent aya Definity TN775C V1 R2 MAINTENANCE CARD
Lucent Definity Systems TN765 V19 Processor Interface
Lucent Definity Systems TN786B V10 Processor Board
Lucent aya Definity TN790B PROCESSOR CARD V5
3 AT&T Merlin Desk & Wall Set Bases Lucent aya at
AYA Lucent Definity TN767E V14 DS1 Interface
aya Trans Talk Lucent 556 Radio Module TransTalk
aya Lucent AT&T DS1 Interface TN767E V18
aya Lucent UN332C V8 MSS/Network Controller Card
aya Lucent ACS 6.0 Partner Office Phone System AT&T
AYA Lucent Definity TN2182C TONE CLOCK V4 Module
AYA Lucent Definity TN767E V39 DS1 Interface
2 Lucent aya Definity TN776 EXPANSION INTFC CARDS V28
Lot 2 Lucent/aya 9031 Transtalk Phones 40B+Batteries
Lucent aya Definity TN765 PROCESSOR INTFC CARD V22
Lucent Partner aya 18 Telephone 7311H13D-003 Black
AYA LUCENT PARTNER ACS PHONE SYSTEM WITH 20 PHONES
Lucent aya Definity TN777B NETWORK CONTROL 2MB MEMORY
Lucent Partner aya 18D Telephone 7311H14A-003 Black
Lucent Partner aya 18D Telephone 7311H13D-003 Black
008 MLX aya Lucent Merlin Legend Line Module
LUCENT AYA MERLIN MESSAGING 12-PORT CARD
Orinoco Lucent IBM WePOINT-ll we point 2 aya
aya Lucent Merlin Magix 100 DCD 617T15
AT&T/Lucent/aya 408 GS/LS-MLX
Lucent Off-Premises Range Extender 122C-215 At&t aya
AT&T/Lucent/aya 408 GS/LS-MLX
aya 32MB ATA Memory Card PG-5E386 Lucent Definity
aya Lucent AT&T HIC-1 Coiled Cord
Lucent aya Definity TN2182B Tone Clock Card V1 R2
Lucent aya Definity TN2224 2W DIGITAL LINE V5 24PORT
Lucent/aya TransTalk-556 RadioModule 4 cordless phone
Lucent aya ACS Phone System Small Business Vmail Pkg
Lucent aya Definity TN2224B 2W DIGITAL LINE V3 24PORT
PHONE AYA LUCENT 6408D 2 LINE SPEAKER 10
AT&T Lucent aya Phone system + 8 voice terminals plus
aya Lucent AT&T Partner 5 slot carrier cabinet system
aya Lucent Partner Mail VS R5 Voicemail Module 2-Port
Lucent aya 8403 Phone Black
AT&T Lucent aya Partner 206E Module R3.1 Working
Lucent aya Definity TN754 Digital Line Card Module
aya Lucent 8434DX Black 8434D04A 107707986 Guaranteed
aya Lucent Definity TN464HP DS1 PRI Card
AT&T Lucent aya Partner 206 Module R4.1 Working
aya Lucent AT&T Definity TN752 V19 Analog Line Card
Lucent aya Merlin Magix 4424D+ Phone w/ Warranty
9 AT&T Lucent aya 408 GS/LS-MLX
AYA LUCENT BU3200A BATTERY BACKUP UNIT AT&T DEFINITY
aya Lucent Definity 100A Analog Adjunct Interface
AYA LUCENT PARTNER REMOTE ACCESS CARD from 2002
10 AT&T Lucent aya Modules
008 MLX , 012 RING GEN , R3 PROCESSOR , 400 GS/LS/TTR
LUCENT AYA MLX20 BUSINESS PHONE**BRAND
