AA4VG40HWDM1液壓泵
AA4VG40HWDM1液壓泵
AA4VG40HWDM1液壓泵
問：西門子plc如 s7200 s7300 s7400 還有新出的s71200。請問各位高手在實際應用中選擇這些plc的主要標準是什麼？
答： 在PLC係統設計時，首先應確定控制方案，下一步工作就是PLC工程設計選型。工藝流程的特點和應用要求是設計選型的主要依據。PLC及有關設備應是集成的、標準的，按照易於與工業控制係統形成一個整體，易於擴充其功能的原則選型所選用PLC應是在相關工業領域有投運業績、成熟可靠的係統，PLC的係統硬件、軟件配置及功能應與裝置規模和控制要求相適應。熟悉可編程序控制器、功能表圖及有關的編程語言有利於縮短編程時間，因此，工程設計選型和估算時，應詳細分析工藝過程的特點、控制要求，明確控制任務和範圍確定所需的操作和動作，然後根據控制要求，估算輸入輸出點數、所需存儲器容量、確定PLC的功能、外部設備特性等，後選擇有較價格比的PLC和設計相應的控制係統。
一、輸入輸出（I/O）點數的估算
I/O點數估算時應考慮適當的餘量，通常根據統計的輸入輸出點數，再增加10%∼20%的可擴展餘量後，作為輸入輸出點數估算數據。實際訂貨時，還需根據制造廠商PLC的產品特點，對輸入輸出點數進行圓整。
二、存儲器容量的估算
存儲器容量是可編程序控制器本身能提供的硬件存儲單元大小，程序容量是存儲器中用戶應用項目使用的存儲單元的大小，因此程序容量小於存儲器容量。設計階段，由於用戶應用程序還未編制，因此，程序容量在設計階段是未知的，需在程序調試之後才知道。為了設計選型時能對程序容量有估算，通常採用存儲器容量的估算來替代。
存儲器內存容量的估算沒有固定的公式，許多文獻資料中給出了不同公式，大體上都是按數字量I/O點數的10∼15倍，加上模擬I/O點數的100倍，以此數為內存的總字數（16位為一個字），另外再按此數的25%考慮餘量。
三、控制功能的選擇
該選擇包括運算功能、控制功能、通信功能、編程功能、診斷功能和處理速度等特性的選擇。
(一)運算功能
簡單PLC的運算功能包括邏輯運算、計時和計數功能；普通PLC的運算功能還包括數據移位、比較等運算功能；較復雜運算功能有代數運算、數據傳送等；大型PLC中還有模擬量的PID運算和其他運算功能。隨著開放係統的出現，目前在PLC中都已具有通信功能，有些產品具有與下位機的通信，有些產品具有與同位機或上位機的通信，有些產品還具有與工廠或企業網進行數據通信的功能。設計選型時應從實際應用的要求出發，合理選用所需的運算功能。大多數應用場合，只需要邏輯運算和計時計數功能，有些應用需要數據傳送和比較，當用於模擬量檢測和控制時，才使用代數運算，數值轉換和PID運算等。要顯示數據時需要譯碼和編碼等運算。
(二)控制功能
控制功能包括PID控制運算、前饋補償控制運算、比值控制運算等，應根據控制要求確定。PLC主要用於順序邏輯控制，因此，大多數場合常採用單回路或多回路控制器解決模擬量的控制，有時也採用的智能輸入輸出單元完成所需的控制功能，提高PLC的處理速度和節省存儲器容量。例如採用PID控制單元、高速計數器、帶速度補償的模擬單元、ASC碼轉換單元等。
(三)通信功能
大中型PLC係統應支持多種現場總線和標準通信協議（如TCP/IP），需要時應能與工廠管理網（TCP/IP）相連接。通信協議應符合ISO/IEEE通信標準，應是開放的通信網絡。
PLC係統的通信接口應包括串行和並行通信接口（RS2232C/422A/423/485）、RIO通信口、工業以太網、常用DCS接口等；大中型PLC通信總線（含接口設備和電纜）應1：1冗餘配置，通信總線應符合國際標準，通信距離應滿足裝置實際要求。
PLC係統的通信網絡中，上級的網絡通信速率應大於1Mbps，通信負荷不大於60%。PLC係統的通信網絡主要形式有下列幾種形式：1）PC為主站，多臺同型號PLC為從站，組成簡易PLC網絡；2）1臺PLC為主站，其他同型號PLC為從站，構成主從式PLC網絡；3）PLC網絡通過特定網絡接口連接到大型DCS中作為DCS的子網；4）PLC網絡（各廠商的PLC通信網絡）。
為減輕CPU通信任務，根據網絡組成的實際需要，應選擇具有不同通信功能的（如點對點、現場總線、工業以太網）通信處理器。
(四)編程功能
離線編程方式：PLC和編程器公用一個CPU，編程器在編程模式時，CPU只為編程器提供服務，不對現場設備進行控制。完成編程後，編程器切換到運行模式，CPU對現場設備進行控制，不能進行編程。離線編程方式可降低係統成本，但使用和調試不方便。在線編程方式：CPU和編程器有各自的CPU，主機CPU負責現場控制，並在一個掃描周期內與編程器進行數據交換，編程器把在線編制的程序或數據發送到主機，下一掃描周期，主機就根據新收到的程序運行。這種方式成本較高，但係統調試和操作方便，在大中型PLC中常採用。
五種標準化編程語言：順序功能圖（SFC）、梯形圖（LD）、功能模塊圖（FBD）三種圖形化語言和語句表（IL）、結構文本（ST）兩種文本語言。選用的編程語言應遵守其標準（IEC6113123），同時，還應支持多種語言編程形式，如C，Basic等，以滿足特殊控制場合的控制要求。
(五)診斷功能
PLC的診斷功能包括硬件和軟件的診斷。硬件診斷通過硬件的邏輯判斷確定硬件的故障位置，軟件診斷分內診斷和外診斷。通過軟件對PLC內部的性能和功能進行診斷是內診斷，通過軟件對PLC的CPU與外部輸入輸出等部件信息交換功能進行診斷是外診斷。
PLC的診斷功能的強弱，直接影響對操作和維護人員技術能力的要求，並影響平均維修時間。
(六)處理速度
PLC採用掃描方式工作。從實時性要求來看，處理速度應越快越好，如果信號持續時間小於掃描時間，則PLC將掃描不到該信號，造成信號數據的丟失。
處理速度與用戶程序的長度、CPU處理速度、軟件質量等有關。目前，PLC接點的響應快、速度高，每條二進制指令執行時間約0.2∼0.4Ls，因此能適應控制要求高、相應要求快的應用需要。掃描周期（處理器掃描周期）應滿足：小型PLC的掃描時間不大於0.5ms/K；大中型PLC的掃描時間不大於0.2ms/K。 四、機型的選擇
(一)PLC的類型
PLC按結構分為整體型和模塊型兩類，按應用環境分為現場安裝和控制室安裝兩類；按CPU字長分為1位、4位、8位、16位、32位、64位等。從應用角度出發，通常可按控制功能或輸入輸出點數選型。
整體型PLC的I/O點數固定，因此用戶選擇的餘地較小，用於小型控制係統；模塊型PLC提供多種I/O卡件或插卡，因此用戶可較合理地選擇和配置控制係統的I/O點數，功能擴展方便靈活，一般用於大中型控制係統。
(二)輸入輸出模塊的選擇
輸入輸出模塊的選擇應考慮與應用要求的統一。例如對輸入模塊，應考慮信號電平、信號傳輸距離、信號隔離、信號供電方式等應用要求。對輸出模塊，應考慮選用的輸出模塊類型，通常繼電器輸出模塊具有價格低、使用電壓範圍廣、壽命短、響應時間較長等特點；可控硅輸出模塊適用於開關頻繁，電感性低功率因數負荷場合，但價格較貴，過載能力較差。輸出模塊還有直流輸出、交流輸出和模擬量輸出等，與應用要求應一致。
可根據應用要求，合理選用智能型輸入輸出模塊，以便提高控制水平和降低應用成本。
考慮是否需要擴展機架或遠程I/O機架等。
(三)電源的選擇
PLC的供電電源，除了引進設備時同時引進PLC應根據產品說明書要求設計和選用外，一般PLC的供電電源應設計選用220VAC電源，與國內電網電壓一致。重要的應用場合，應採用不間斷電源或穩壓電源供電。
如果PLC本身帶有可使用電源時，應核對提供的電流是否滿足應用要求，否則應設計外接供電電源。為防止外部高壓電源因誤操作而引入PLC，對輸入和輸出信號的隔離是必要的，有時也可採用簡單的二極管或熔絲管隔離。
(四)存儲器的選擇
由於計算機集成芯片技術的發展，存儲器的價格已下降，因此，為保證應用項目的正常投運，一般要求PLC的存儲器容量，按256個I/O點至少選8K存儲器選擇。需要復雜控制功能時，應選擇容量更大，檔次更高的存儲器。
(五)冗餘功能的選擇
1．控制單元的冗餘
(1)重要的過程單元：CPU（包括存儲器）及電源均應1B1冗餘。
(2)在需要時也可選用PLC硬件與熱備軟件構成的熱備冗餘係統、2重化或3重化冗餘容錯係統等。
2．I/O接口單元的冗餘
(1)控制回路的多點I/O卡應冗餘配置。
(2)重要檢測點的多點I/O卡可冗餘配置。3）根據需要對重要的I/O信號，可選用2重化或3重化的I/O接口單元。
(六)經濟性的考慮
選擇PLC時，應考慮性能價格比。考慮經濟性時，應同時考慮應用的可擴展性、可操作性、投入產出比等因素，進行比較和兼顧，終選出較滿意的產品。
輸入輸出點數對價格有直接影響。每增加一塊輸入輸出卡件就需增加的費用。當點數增加到某一數值後，相應的存儲器容量、機架、母板等也要相應增加，因此，點數的增加對CPU選用、存儲器容量、控制功能範圍等選擇都有影響。在估算和選用時應充分考慮，使整個控制係統有較合理的性能價格比。
然後再根據西門子PLC的技術規格選型就可以了。
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Cisco Catalyst WS-C3750G-24WS-S50 Wireless Controller
New Cisco Catalyst 3750 WS-C3750X-48P-S PoE Managed Ethernet Switch
NEW Cisco Catalyst WS-C3750E-24TD-E Managed Switch 24 Ports
Cisco ASA5555 Adaptive Security Appliance Firewall K8 IOS 5555-X 1-YR Warranty
NEW OPEN BOXCisco VS-S720-10G-3CXL 6500 Series Supervisor Engine SHIP FAST
Cisco WS-C4506-E WS-X45-SUP6L-E WS-X4648-RJ45V+E WS-X4448-GB-SFP CUSTOMIZEABLE
Cisco UCSB-B200-M3 72GB, 2x Intel E5-2667/130W, 600GB 6Gb SAS
NEW Sealed Cisco C1-C4500X-16SFP+ One Catalyst 4500-X 16 Port 10G IP Base Switch
NEW GENUINE Cisco PVDM2-36DM Digital Modem Packet Voice Data Module
The Five New - *NEW* Cisco VoIP 5 Phone System IP PBX for Small Business
Cisco 15454-OPT-AMP-C ONS ENHANCED OPTICAL AMPLIFIER C Band WOGUADXEAA +WARRANTY
NEW IN BOX CISCO WS-C3650-48FS-E 48 Port Full PoE 4x1G Uplink IP *SHIP FAST*
CISCO ASA5525-IPS-K9 ASA5525-X IPS Processor 8GE Data Security Appli Firewall zk
Cisco ASA5580-40-BUN-K9 Advanced Firewall - 1 Year Warranty - £3500 ex VAT
Cisco WS-X6716-10G-3C 10Gig Line Card - 1 Year Warranty - £3,500 ex VAT
Cisco WS-C3750G-48PS-S New Sealed - 1 Year Warranty - £3500 ex VAT
Cisco ASA5515 FirePOWER IPS AMP & URL 3YR Subscription - £3500 + VAT
Cisco Catalyst 4500E Series Unified Access Supervisor, 928 Gbps WS-X45-SUP8-E=
Cisco Systems L-ASA-SSL-750-1K
Cisco Systems ASA5515-IPS-K8
Cisco Systems ASA5525-K8
Cisco Systems N7K-C7010-FAB-2
NEW Sealed Cisco PWR-C45-4200ACV Cisco Catalyst 4500 Series 4200 WACV Power
Cisco WS-X6716-10G-3CXL Cisco Catalyst 6500 16-Port 10 Gigabit Ethernet Module
Cisco UCSB-B200-M3 224GB, 2x Intel 2.60GHz E5-2630v2/80W, MLOM-40G-01
Cisco Systems WS-X6848-SFP-2T
CISCO 4-Degree Mesh Patch Panel 15454-PP-MESH-4 2RU 3YR WNTY
3rd Party CON-SNTP-7613SRS1 / 24X7X4 for Cisco 7613S Chassis,, 1 year
3rd Party CON-SNTP-7613SSUL / 24X7X4 for Cisco 7613S Chassis,, 1 year
Cisco Systems WS-C3850-48P-L incl 19% VAT // 2 years IT4Trade warranty
NEW Cisco WS-C3650-48FQ-S 48 10/100/1000 Ethernet PoE+ and 4x10G Uplink ports
New CISCO L-ASA-SSL-750-1K | incl 19% VAT | 2 years Cybertrading warranty
New CISCO ASA-SSL-750-1000 | incl 19% VAT | 2 years Cybertrading warranty
CISCO - N3K-C3524P-10GX - Nexus 3524x, 24 10G Ports
Brand NEW Cisco C1-C4500X-16SFP+ ONE Catalyst 4500-X 16 Port 10G IP Base Switch
NEW CISCO WS-X45-SUP7-E Cisco Catalyst 4500E Series Supervisor
Cisco Systems WS-C4510R+E
NEW SEALED Cisco C1-C4500X-16SFP+ ONE Catalyst 4500-X Switch - 16 x 10 Gigabit
!BRAND NEW IN BOX ! CISCO N7K-M132XP-12 32 Port 10Gb Ethernet Module !SHIP FAST!
Cisco WS-C6509-E 2x VS-S720-10G-3C 7x WS-X6748-GE-TX
Cisco ACE30-MOD-K9 Application Control Engine 1YearWarranty 2+Available
Cisco ASA5520-DC-K8 Security appliance 10Mb LAN 100Mb 1YearWarranty 2+Available
Cisco AS535XM-4E1-120-D Gateway1YearWarranty 2+Available
Cisco UCSB-B200-M3 w/ 8x 8GB DDR3 Memory, 2.70 GHz E5 CPU and 40G Mezzanine
NEW SEALED Cisco WS-C3750E-24TD-SD Catalyst Switch 1YrWrnty 2+Available
*NEW* WS-X45-SUP7-E Catalyst 4500 E-Series Supervisor, 848Gbps
WS-C4948-S Cisco Catalyst 4948 48 Port Switch
*Brand NEW* CISCO WS-C3750X-48P-S 48 10/100/1000 Ethernet PoE+ Switch
NEW Cisco N3K-C3524P-10GX Nexus 3524x Layer 3 Switch 24 10G Ports N3KC3524P10GX
New Cisco Systems L-ASA-UC-100 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO SPA-8XCHT1/E1-V2 | incl 19% VAT | 2 years Cybertrading warranty
NEW Sealed Cisco WS-X4712-SFP+E Catalyst 4500E Series 12Port 10 Gigabit Ethernet
New Cisco Systems RSP720-3C-GE | incl 19% VAT | 2 years Cybertrading warranty
Cisco WS-C3750X-24P-E 24 Port PoE+ GB + 2x C3KX-PWR-715WAC C3KX-NM-1G Modul
3rd Party CON-SNTP-760S10BR / 24X7X4 for Cisco 7609S Chassis,, 1 year
NEW IN BOX Cisco WS-C3850-24XU-L 24 Port UPOE MGIG, 1100W, LAN BASE ! SHIP FAST
*New Sealed* Cisco WS-C3650-48PD-E 48 10/100/1000 Ethernet PoE+ w/ 640WAC power
Cisco Catalyst 3750V2-48PS - Switch - L3
Cisco Systems WS-C4510R+E
CISCO3925E/K9 Cisco 3925 Router with 4 onboard GE w/ VWIC2-1MFT-G703 Module
NEW Cisco WS-C3650-48PD-E 48 10/100/1000 Ethernet PoE+ Switch w/ 640WAC power
Cisco Systems N7K-M132XP-12L | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems SPA-2CHT3-CE-ATM
#NEW# Cisco WS-C3650-48PD-E 48 Port PoE+ Switch #FAST SHIPMENT#
Cisco Systems ISR4351/K9
Cisco Systems SPA-8XCHT1/E1-V2
New Cisco Systems NAC3315-SVR | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems AS53-96DMM-RPS-CH
NEW Cisco ASA5525-K9 ASA 5525-X Firewall Edition Network Security/Firewall
Cisco Systems SPA-5X1GE-V2
Cisco Systems WS-C3560X-48PF-E incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems WS-C4507RES6L-96V+ incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems WS-C4506E-S7L+96 incl 19% VAT // 2 years IT4Trade warranty
Cisco AS5350XM AS535XM-2E1-60-V AS535-DFC-2CE1, AS535-DFC-60NP
Cisco CMTS UBR7246VXR Cable Router NPE-G2 2 ea MC28U dual AC 2gb RAM
Cisco CMTS UBR7246VXR Cable Router NPE-G2 2 ea MC28U dual DC 2gb RAM
FLSA1-2X-5-10G= Cisco Upgrade from 5 Gbps to 10Gbps License - license
Cisco UCSB-B200-M3 64GB, 2x Intel E5-2620/95W, 2x 500GB 6Gb SATA
NEW SEALED CISCO CTS-SX20PHD2.5X-K9 Video conferencing kit 1YearWrnty 2+Avalable
Cisco ASA5525-K7 Security appliance 1YearWarranty 2+Available
Cisco UCSB-B200-M3 128GB, Intel 2.60 GHz E5-2630 v2/80W, 600GB 6Gb SAS 10K RPM
NEW IN BOX CISCO WS-C3850-24XU-L CATALYST SWITCH 24PORT UPOE MGIG **SHIP FAST**
Cisco UCSB-B200-M3 96GB, 2x Intel E5-2643, MLOM-40G-01
Cisco WS-X6904-40G-2T Catalyst 6900 Series 4-Port 40 Gigabit Ethernet Fi
*** NEW Cisco WS-C3850-48T-E 48 10/100/1000 Ethernet ports, with 350WAC NEW
CISCO 15454-ML-MR-10 ML2 10-pt Multi-rate L2/RPR Card
CISCO 1 Port OC-192 XFP Module 15454-10G-S1 3YR WNTY
CISCO UCS-FI-6296UP UCS 96 Port Fabric Interconnect Switch w/ Rails,Pwr Cable z5
Cisco MGX-AXSM-8-622-XG AXSM-8-OC12/XG 8 PORT OC12C STM4 ATM SWITCH SERVICE MOD
NEW Sealed Cisco PA-MC-STM-1SMI 1 port multichannel STM-1 single mode port adapt
Cisco Systems AS53-T1-216DMM
NEW Cisco SG200-50FP 50-port Gigabit Full-PoE Smart Switch
NEW IN BOX Cisco Catalyst WS-C3650-48FWD-S 3650 48 FPoE Port 2x10G Uplink Switch
SMARTnet Eligible Cisco Nexus 5596UP 48 Fixed 10GE Ports 1RU N5K-C5596UP-FA
New Sealed Cisco3945/K9
Cisco NEW N2K-C2232TF-10GE Nexus 2232TP 10GBASE-T Fabric Extender + 16 FET-10G
*New In Box* Cisco WS-C3650-48PQ-S Switch - L3 - managed - 48 Port * Fast Ship *
#NEW# Cisco WS-C3850-24XU-L 24 Port Catalyst Switch #FAST SHIPMENT#
~NEW SEALED~ CISCO N2K-C2248PQ Fabric Extender ~FAST DELIVERY~
New Cisco Systems WS-C2960XR-48FPS-I incl 19% VAT // 2 years IT4Trade warranty
New Cisco Systems WAVE-574-DMS | incl 19% VAT | 2 years Cybertrading warranty
New CISCO MCS-7825-H2-CCX1 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO MCS-7825-H2-ECS1 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO MCS-7825-H2-IPC1 | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems MCS-7825-H2-RC1 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO MCS-7825-H3-CCE1 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO MCS-7825-H3-ECS1 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO MCS-7825-H2-CCE1 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO MCS-7825-H2-IPC2 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Nexus 5500 Unified Module 16 Port 10GE N55-M16UP
3rd Party CON-SNT-7613RSCR 8X5XNBD for Cisco 7613 Chassis,1, 1 year
3rd Party CON-SNT-7613RSCR / 8X5XNBD for Cisco 7613 Chassis,1, 1 year
New CISCO MCS7825H3-K9-CMB1 | incl 19% VAT | 2 years Cybertrading warranty
~NEW SEALED~ CISCO VS-S720-10G-3CXL Supervisor Engine ~FAST DELIVERY~
New Cisco Systems N2K-C2248TF-E incl 19% VAT // 2 years IT4Trade warranty
CISCO WS-C6509-E w/ Fan, Dual PWR-4000-DC 1x WS-X6708-10G-3CXL,2x WS-SUP720-3BXL
*New In Box* 2x Cisco WS-C3850-24P-S Switch * Ship Fast *
NEW IN BOX CISCO RSP720-3CXL-GE 1 YEAR WARRANTY ROUTE SWITCH PROCESSOR 720GBPS
NEW Cisco WS-C3650-48FD-L Catalyst 3650-48F Ethernet Switch 48 Port Full PoE
Cisco Systems ISR4351/K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems 4-10GBE-WL-XFP
CISCO N3K-C3524P-10GX | incl 19% VAT | 2 years Cybertrading warranty
~NEW SEALED~ Cisco WS-C3650-48PQ-S 48 Port PoE+ Switch ~FAST DELIVERY~
CISCO CATALYST 3650 24 PORT DATA 4X1G UPLINK IP SERVICES IN
!NEW IN BOX! Cisco WS-C3650-48FS-E 48 port PoE+ 4x1G 1025W ! FAST SHIPMENT !
BRAND NEW IN BOX Cisco ASA5525-IPS-K9 Firewall Security Appliance ! FAST SHIP !
Cisco Systems NAC3315-SVR
Cisco Systems WS-C4507R+E
Cisco Systems WS-C4507R-E
#NEW# Cisco WS-C3650-48FS-E 48 Port PoE+ Switch #FAST SHIPMENT#
*New In Box* Cisco N3K-C3524P-10GX Switch * Fast Shipment *
Cisco Systems ISR4351/K9 | incl 19% VAT | 2 years Cybertrading warranty
New CISCO SPA-8XCHT1/E1-V2 | incl 19% VAT | 2 years Cybertrading warranty
CISCO - WS-X4448-GB-SFP= - Catalyst 4500 48-Port 1000Base-X (SFPs Optional)
New Cisco Systems WAVE-574-DMS | incl 19% VAT | 2 years Cybertrading warranty
Cisco AS54HPX-16E1-480AC 16E1, 492 ports AC RPS 512MB DRAM
CISCO 7600-ES+2TG3CXL 7600 ES+ Line Card 1YearWarranty 2+Available
NEW Cisco WS-C3850-48P-S 48 10/100/1000 Ethernet PoE+ ports 715W AC Power
New open* Cisco N2K-C2232TF-10GE NEXUS 2000 10GBASE-T Extender w/ dual AC PS
Cisco ASR1002 chassis,4 built-in GE, Dual P/ S,4GB DRAM 1 YEAR WARRANTY
**NEW SEALED** Cisco WS-X4640-CSFP-E 40 SFP/80 C-SFP ports **Ship FAST**
NEW IN BOX Cisco Nexus N3K-C3524P-10GX L3 Managed 3524x Switch, 24 SFP+ Ports
New Sealed Cisco ISR4431/K9 ISR 4431 Router with 4 onboard GE
*New SEALED* Nexus Cisco N3K-C3524P-10GX Nexus 3524x Switch, 24 SFP+
Cisco UBR7225VXR Broadband CMTS Router w/ Dual AC Power
NEW IN BOX CISCO ASA5525-IPS-K9 ASA5525-X IPS Edition Firewall **SHIP FAST**
**NEW SEALED** Cisco WS-X4712-SFP+E Line Card 4500-E 12 Ports 10G (SFP+) CARD
3rd Party CON-SNT-7604RCXR 8X5XNBD for Cisco 7604 Chassis,4, 1 year
Cisco Systems WS-C3850-48U-L
Cisco Systems ASA5525-SSD120-K8
Cisco Systems ASA5525-SSD120-K9
Cisco Systems 4-10GBE-WL-XFP
Cisco Systems ASA-UC-100
CISCO N3K-C3524P-10GX | incl 19% VAT | 2 years Cybertrading warranty
*Brand NEW* CISCO PA-MC-STM-1SMI 1 port multichannel STM-1 single mode adapter
New Cisco Systems WS-C3650-48PS-S incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems WS-C3850-48T-L incl 19% VAT // 2 years IT4Trade warranty
!BRAND NEW IN BOX! WS-X4712-SFP+E Cisco Catalyst 4500 E-Series 10GBE SFP+ MODULE
Cisco UCS-B200-M3 V10 B200 M3 Blade Server 2 x E5-2650 V2 256Gb RAM 10Gb VIC
CISCO U7246VXR-ONE28UG1 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems UBR7200-NPE-G1
Cisco Systems WS-C4507R-E
New CISCO WS-C3560X-48PF-E | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems MCS-7825-H2-S31
Cisco Systems MCS-7825-H2-UC1
New Cisco Systems N2K-C2224TF-1GE | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems N2K-C2248TF | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems ASA5510-AIP10SP-K8
Cisco Systems MCS-7825-H1-ECS1
Cisco Systems MCS-7825-H1-UC1
Cisco Systems MCS7825H2-K9-CMA2
Cisco Systems MCS-7825-H3-CCX1
Cisco Systems MCS-7825-H3-IPC1
Cisco Systems MCS7825H3-K9-CMA2
Cisco Systems MCS7825H3-K9-CMB2
Cisco Systems MCS7825H3-K9-CMC1
Cisco Systems MCS-7825H3-K9-UCA1
Cisco Systems MCS-7825-H3-S31
Cisco Systems MCS-7825-H3-UC1
New CISCO ASA5510-AIP10SP-K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems CRS-16-FANTRAY | incl 19% VAT | 2 years Cybertrading warranty
NEW Sealed Genuine Cisco WS-X45-SUP8-E 4500E Supervisor Engine 8-E w/Convergence
NEW Sealed Cisco PA-MC-STM-1SMI One Port Multichannel STM-1 PA Adapter
NEW SEALED Cisco N7K-M148GT-11L Nexus 7000 M1-Series 48-Port Gigabit Ethernet
**New FACTORY Sealed** Cisco ASA5525-IPS-K9 Cisco ASA 5525-X IPS Edition
*NEW Sealed* CISCO WS-C3650-48PQ-S 48 10/100/1000 Ethernet PoE+ and 4x10G Uplink
3rd Party CON-SNT-6S7C10GR 8X5XNBD for Cisco 7606S Chassis, 1 year
Cisco Systems 4-10GBE-WL-XFP | incl 19% VAT | 2 years Cybertrading warranty
CISCO N3K-C3524P-10GX | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems L-ASA-UC-100 | incl 19% VAT | 2 years Cybertrading warranty
CISCO WS-X6148-FE-SFP Catalyst 6500 48-port 100BASE-X Classic Interface Module
CTI-8321-GWISDNK9 Cisco TelePresence ISDN GW MSE 8321
CISCO 12404 GSR4/80-AC 4-Slot Chassis router 2xAC Power CSF Card Route Processor
Cisco Systems ACE30-MOD-K9
NEW IN BOX CISCO VS-S720-10G-3CXL S720 SUPERVISOR ENGINE **SHIP FAST**
Cisco Systems WS-X6708-10G-3CXL incl 19% VAT // 2 years IT4Trade warranty
CISCO MWR-1941-DC-8T1/E1 | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems CHAS-UBR7225VXR | incl 19% VAT | 2 years Cybertrading warranty
Cisco UCS 5108 Chassis with 4x B200 M2 with 2xXeon X5650/16 gb/1 x146 gb sas 10K
NEW IN BOX CISCO WS-X4712-SFP+E X4712 4500E CATALYST SWITCH MODULE **SHIP FAST**
Cisco WS-C3750X-48P-L 3750X 48x 10/100/1000 PoE ETH PTS w/ 715W AC PSU
HP C7000 W/ 16x BL460C G6 BLADE 2x CISCO 3020 2x L5520 96GB 2x 73GB 10K RAILS
HP C7000 W/ 16x BL460C G6 BLADE 2x CISCO 3020 2x E5540 96GB 2x 73GB 10K RAILS
New Cisco Systems WS-X6824-SFP-2T | incl 19% VAT | 2 years Cybertrading warranty
Cisco AS5350XM AS535XM-2E1-V-HC with AS535-DFC-2CE1, AS5X-FC, 3x AS5X-PVDM2-64
*New In Box* Cisco WS-X6748-SFP 48-port GigE Mod: fabric-enable *Fast Shipment*
New Cisco A9K-SIP-700 I-Flex SPA Interface Processor ASR9000 Router 68-3197 AK
NEW Sealed Cisco WS-C3850-48PW-S Cisco Catalyst 3850 48-port PoE IP Base Switch
*NEW SEALED FAST SHIP* WS-X45-SUP8-E ( with 2 Years Wnty)
Cisco MEM-CC-WAN-512M - Two 512 MB Memory modules Enhanced FlexWAN Bays
Cisco 14X10GBE-WL-XFP CRS-3 14-port 10GbE LAN/WAN-PHY Interface Module KAJ
NEW CISCO WS-C3750X-12S-E Catalyst 3750X 12 Port GE SFP SFP IP Services
NEW WS-X45-SUP6-E CISCO CATALYST 4500 E-SERIES SUP 6-E
CISCO CISCO3845-AA/K9 INCLUDED AIM-COMPR4 Mem/Flash Upgrade Avail.
Cisco Systems A903-RSP1A-55 | incl 19% VAT | 2 years Cybertrading warranty
NEW Cisco ASA5525-IPS-K9 ASA 5525-X with IPS, SW, 8GE Data, 1GE Mgmt, AC Power
*Brand NEW* CISCO WS-C3850-24T-E 24 ports w/ 350WAC Power, C3850-NM-2-10G Module
*NEW SEALED* WS-C3850-48P-S 48 10/100/1000 ports Switch + C3850-NM-2-10G Module
NEW Sealed Cisco N7K-M108X2-12L Nexus 7000 M1-Series 8-Port 10 Gigabit Module
Cisco Nexus N5K-C5548P-FA 5548P 1RU Chassis 32 Fixed 10GE Ports
NEW SEALED CISCO WS-X4712-SFP+E Catalyst 4500 E-Series 10GBE SFP+ MODULE
Cisco ASR1006 w/ Dual AC Power
CISCO Nexus 3064 Switch N3K-C3064PQ-10GX 3YR WNTY
#NEW# Cisco ASA5525-IPS-K9 ASA 5525-X Router #FAST SHIPMENT#
NEW Sealed DS-X9232-256K9 MDS 9000 32 Port Fibre Channel Switching Module NIB
*New Sealed*Cisco WS-X4640-CSFP-E Catalyst 4500 40 SFP/80 C-SFP ports 1000BaseX
New Cisco Systems CHAS-UBR7225VXR | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems AS53-96-RPS-CH
3rd Party CON-SNT-7606SSUP 8X5XNBD for Cisco 7606S Chassis, 1 year
CISCO ME 3600X 24CX Switch ME-3600X-24CX-M
Cisco 76-ES+T-2TG 7600 ES Plus Transport, LAN/WAN PHY, OTN/G.709, 2x10GE Card
Cisco WS-C6504-E Bundle w/ 2x VS-S720-10G-3C,2x PWR-2700-AC/4, Fan Tray included
*Brand NEW* CISCO WS-C3850-48F-L 48 Port Switch + C3850-NM-2-10G Module
Cisco A9K-8T-L 8-Port 10GE Low Queue Line Card
New Cisco Systems WS-C3750E-48PD-E incl 19% VAT // 2 years IT4Trade warranty
New Cisco Systems N2K-C2232PF-10GE incl 19% VAT // 2 years IT4Trade warranty
New Cisco Systems N2K-C2248TF-1GE incl 19% VAT // 2 years IT4Trade warranty
*New sealed& Neu OVP* CISCO ASR1000-ESP10 2Years Wnty/VATfree ?4000
Cisco Systems WS-C3560E-12D-S incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems WS-C3750X-12S-E incl 19% VAT // 2 years IT4Trade warranty
New Cisco Systems ASA5540-BUN-K9 incl 19% VAT // 2 years IT4Trade warranty
Cisco Systems ASA5580-20-BUN-K8 incl 19% VAT // 2 years IT4Trade warranty
CISCO - ASA5525-FPWR-K9 - ASA 5525-X with FirePOWER Services, 8GE, AC, 3DES/AES
*NEW SEALED* CISCO WS-C3850-12XS-S 2 Years Warranty/VATfree 4000? 3850
Cisco Systems WS-C3850-12S-S incl 19% VAT // 2 years IT4Trade warranty
CISCO VS-C6506E-S720-10G | incl 19% VAT | 2 years Cybertrading warranty
New Cisco Systems WS-X4448-GB-SFP | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems SPA-8X1GE
Cisco Systems FL-CUBEE-100
Cisco Systems L-FL-CUBEE-100
Cisco N2K-C2232TF-10GE Cisco Nexus 2232TP Series 10GBASE-T Fabric Extender
New CISCO WS-C3750X-48PF-S | incl 19% VAT | 2 years Cybertrading warranty
NEW Sealed Cisco WS-C3650-48PQ-S 48 10/100/1000 Ethernet PoE+ Switch
Cisco ASR1000-RP2 second-generation ASR 1000 1 YEAR WARRANTY
NEW CISCO N55-48P-SSK9 Nexus 5500 Storage License **E-DELIVERY**
CISCO C3925-CME-SRST/K9 - Voice Bundle w/ PVDM3-64 1GB/256F CISCO3925 - 3 YR War
NEW Cisco DS-X9232-256K9 1 YEAR Warranty NEW MDS 32-Port 8-Gbps Advanced Fibre C
*New* Cisco WS-C3750X-48PF-E 48-Port Gigabit POE
Guaranteed SMARTnet Eligible Cisco Catalyst WS-C4500X-16SFP+ 10G IP Base Switch
NEW Cisco WS-C3850-24P-E 24 10/100/1000 Ethernet PoE+ ports, with 715WAC power
Cisco 15454-10G-S1 Fiber Module 1YearWarranty 2+Available
NEW SEALED Cisco Nexus N2K-C2248PQ Expansion Module 1YearWarranty 2+Available
Cisco Nexus N3K-C3548P-10G Managed Switch
NEW CISCO L-ASA5585-SEC-PL ASA 5585-X Security Plus License **E-DELIVERY**
NEW CISCO FLSA1-2X-5-10G Upgrade 5 Gbps to 10Gbps E-Delivery PAK for ASR1002-X
Cisco 14X10GBE-WL-XFP CRS-3 14-port 10GbE LAN/WAN-PHY Interface Module
CISCO ISR 4451-X ISR4451-X/K9 DUAL PWR-4450-AC IOS XE 15.4 IP BASE MINT
Cisco ESR10008 Slot Router W/ 2x ESR-PRE3 2x ESR-PWR-AC 1x ESR-BLOWER JWA
Cisco UCSB-B200-M3 6x 16GB DDR3, 2x E5-2620, 2x 500GB 6Gb SATA
Cisco 6504-E Chassis 4-Slot WS-C6504-E w/ Dual AC & VS-S720-10G-3CXL *Bundle*
Cisco 15454-40-MUX-C
#NEW# Cisco WS-C3650-48PQ-S 48 Port PoE+ Switch #FAST SHIPMENT#
Cisco Systems Cisco7201 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems WS-C3750X-24U-S
Cisco Systems A9K-8T-L
*New In Box* Cisco N2K-C2348UPQ 10GE Fabric Extender **Fast Shipment **
Cisco UCSC-C240-M3S dual P/S 4x 500GB 6Gb SATA, 2x Xeon E5-2609, 160GB (16GB)
*New* Cisco WS-C3650-48FWD-S Catalyst 3650 48 Port Fpoe 2X10G Uplink
*Good Condition* Juniper DPCE-R-20GE-2XGE 1 GE DPC PRNCD MX9 * Fast Shipment *
CISCO 7609S-S32-8G-B-P | incl 19% VAT | 2 years Cybertrading warranty
CISCO 7609S-SUP720B-P | incl 19% VAT | 2 years Cybertrading warranty
CISCO C2951-S-SRE-WAE/K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems C2951-UCSE/K9 | incl 19% VAT | 2 years Cybertrading warranty
CISCO C2951-WAASX-SEC/K9 | incl 19% VAT | 2 years Cybertrading warranty
Cisco Systems C3925-AX/K9 | incl 19% VAT | 2 years Cybertrading warranty
CISCO C3925-VSEC-PSRE/K9 | incl 19% VAT | 2 years Cybertrading warranty
CISCO WS-C4506E-S6L-96V+ | incl 19% VAT | 2 years Cybertrading warranty
CISCO 15454-192L-1-55.7 | incl 19% VAT | 2 years Cybertrading warranty
CISCO 4OC3X/POS-LR-LC-B | incl 19% VAT | 2 years Cybertrading warranty
Cisco AIR-CT5508-100-K9 WLAN Wireless Lan Controller + 25 AP Lic up to 125 AP
*New Sealed* Cisco WS-C3650-48TS-E 48 10/100/1000 Ethernet and 4x1G Uplink ports
*NEW Factory Sealed* CISCO WS-C3850-48U-L 48 Port Catalyst Switch C3850-NM-2-10G
NEW Sealed Cisco N2K-C2348UPQ Cisco Nexus 2348UPQ 10GE Fabric Extender
#NEW# Cisco WS-C3650-48TS-E 48 Port Catalyst Switch #FAST SHIPMENT#
CISCO 15454-192L-1-55.7 | incl 19% VAT | 2 years Cybertrading warranty
CISCO 4OC3X/POS-LR-LC-B | incl 19% VAT | 2 years Cybertrading warranty
NEW Cisco WS-C3850-24U-S Catalyst WS-C3850-24U Layer 3 Switch 3850 24 Port UPOE
New CISCO SPA-1XOC12-POS-V2 | incl 19% VAT | 2 years Cybertrading warranty
*NEW SEALED* CISCO WS-C3650-48PWD-S Catalyst 3650 48 Port PoE 2x10G Uplink
CISCO 4-10GE Cisco CRS-1 Series 4x10GE Interface Card
*NEW Factory Sealed* CISCO WS-C3850-48PW-S Catalyst Switch 3850
Cisco AIR-CT5508-50-K9 5500 Series Wireless Controller for up to 50 Cisco access
New Sealed Cisco WS-C3850-24U-E 24 10/100/1000 Ethernet UPOE ports Switch
NEW Cisco WS-C3850-48F-S 48 10/100/1000 Ethernet PoE+ port Switch 1100W AC power
Cisco Supervisor MSE 8050 CTI-8050-SUP-K9 w/ 256Mb CompactFlash
Cisco CISCO3925-E-V/K9 Integrated Services Router
CISCO ASA 5580-40 APPLIANCE - ASA5580-40-10GE-K9
CATALYST 2960S STACK 48GIGE PO Cisco WS-C2960S-48LPS-L
*** NEW Cisco WS-C3650-48FQ-S 48 POE+ GE, 4x10G, 1025W, IP base
New Sealed Cisco N3K-C3524P-10GX Nexus 3524x, 24 10G Ports Fast Shipping
NEW Cisco WS-C3650-48TD-S Catalyst WS-C3650-48TD Layer 3 Switch 3650 48 Port
New CISCO ASA-CSC20-250-1K | incl 19% VAT | 2 years Cybertrading warranty
Cisco WS-X45-SUP6-E= Supervisor card with CenterFlex technology
Cisco Systems SM-X-6X1G
New CISCO SPA-1XOC12-POS-V2 | incl 19% VAT | 2 years Cybertrading warranty
3rd Party CON-SNTP-A9KSP700 / 24X7X4 for Cisco ASR 9000 Series, 1 year
CISCO - WS-C3650-48PD-S - Catalyst 3650 48 Port, PoE 2x10G Uplink IP Base
CISCO - N2K-C2232TM-E-10GE - (32x1/10GT+8x10GE), airflow/power opt
CISCO - N2K-C2232TM-E - N2K-C2232TM-E-10GE (32x1/10GT+8x10GE), airflow/power opt
Cisco Systems WS-C3850-24P-E incl 19% VAT // 2 years IT4Trade warranty
New Cisco Systems WS-X4448-GB-SFP incl 19% VAT // 2 years IT4Trade warranty
*Neuware New Sealed* CISCO WS-C3750X-48P-E 2YearsWnty WnVATfree ?3950
New Cisco Systems ASA5525-IPS-SSP | incl 19% VAT | 2 years Cybertrading warranty
L-ASA5585-SEC-PL= Cisco ASA 5585-X Security Plus - license
New Sealed CISCO Original SFP-10G-LR LOT of 16 Units
Cisco DCM-GBE-MK1 D9900/D9901 DCM GE Input/Output Board MKI
cisco WS-C4500X-16SFP+ factory sealed
10 Pcs. C2801-VSEC-SRST/K9 Cisco2801 VSEC Bundle Router w/PVDM2-8
Cisco AS535XM-2E1-60-D Universal Gateway AS5350XM 1YearWarranty 2+Available
NEW SEALED Cisco Meraki MX100-HW Firewall 250 VPN Users 1YearWaranty 2+Available
Cisco AS58-24CE1 Expansion module 1YearWarranty 2+Available
NEW SEALED Cisco WS-C4510R Switch 1YearWarranty 2+Available
CISCO WS-X6748-SFP= Catalyst 48-Port GigE Module
CISCO WS-X6716-10G-3CXL Catalyst 6500 16-Port 10 Gigabit Ethernet Module
*New In Box* Cisco WS-C3850-12XS-S Switch * Fast Shipment *
CISCO WS-C6504-E w/ Fan and Dual Power 1xWS-X6748-GE, 1x WS-X6724, 1x WS-SUP32
NEW Cisco WS-C3650-48FQ-S CAT3650 48-GE PoE+ 4-10G SFP+ 1025AC IPB
NEW Cisco Catalyst WS-C3750X-48P-L 48 Port Ethernet Switch with 370 Watt PoE
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