36 cm) 1 Typical power consumption is with a 24 VDC input voltage at a 40°C (104°F) ambient temperature. Each HWIC slot offers high-data-throughput capability: Up to 1. View All Images. Product codes. Cisco 3945. Cisco 3945 - router - desktop. CISCO3945-V/K9 includes Voice bundle. The new Cisco Integrated Services Routers Generation 2 (ISR G2) platforms are architected to enable the next phase of branch-office evolution, providing rich-media collaboration and virtualization to the branch office while maximizing. 9. Preparing for Network Connections Cisco 3945 Integrated Services Router build on 25 years of Cisco innovation and product leadership. Dimensions & Weight Width 18. DDTS. 256 MB. 01-Feb-2010. Cisco 1905 Series Integrated Services Routers. Free PDF of Cisco CISCO3945E/K9. Product Type: Router. Computers & electronics; Networking; Hardware firewalls; User manual. 2 Ordering the Cisco 2900 Series Integrated Services Routers. Download. Ques 2) but in my scenerion 60 calls will be travel in a time so once 25 calls are initiated then 25 SIP session will be occupied unless until RTP is generated. 4 cm) For a one and a half RU (rack unit) switch, 2. 1(1)T . Manufacturer WarrantyChoose Connection for Cisco . 1X security with a RADIUS authentication mechanism and can also be controlled using MAC. Like. exe. The Cisco ® 4-Port Clear Channel T1/E1 High-Speed WAN Interface Card provides n x T1/E1 connectivity in a compact form factor and reduces deployment and management costs for the Cisco 2800, 3800, 2900 and 3900 Series Integrated Services Routers. government export restrictions on the encrypted tunnel count and encrypted throughput. 7 and later see section, Steps to. Cisco 4000 Series Integrated Services Routers: Architecture for Branch-Office Agility (PDF - 971 KB) Miercom Performance Analysis: Cisco 4000 Series ISRs (PDF - 878 KB) 4431 Integrated Services Router: Access product specifications, documents, downloads, Visio stencils, product images, and community content. 50%-98% off Cisco3945/K9 price, buy brand new cisco 3900 router (In Stock): 3945 router - SPE150, 3GE, 4EHWIC, 4DSP, 4SM, 256MBCF, 1GBDRAM, IP Base online! Overview of the Routers. CISCO3945/K9 Cisco 3945 w/SPE150(3GE,4EHWIC,4 DSP,4SM,256MBCF,1GBD RAM,IPB) Substitute internal power supply to PWR-3900-POE CISCO3845-AVG-64 3845 Video Encoding Bundle with 4 EVM-IPVS-16a for 64 ports CISCO3945/K9 Cisco 3945 w/SPE150(3GE,4EHWIC,4 DSP,4SM,256MBCF,1GBDCisco Unified IP Phone Expansion Module 7916. Also, in the previous article we talked about the benefits you get from migrating to Cisco 4000 Series ISR… Cisco 4451-X vs. The Cisco ® 819 Integrated Services Router Family, designed in compact hardened and non-hardened form factors, is the smallest Cisco IOS ® Software router with support for integrated fourth-generation (4G LTE) wireless WAN (mobile broadband backhaul) and WLAN capabilities. 18-port and 20-port models—5. Specifications. SAN JOSE, CA, 95134 REV A. This router is designed for enterprise branch offices, service providers and web hosting environments. Cisco 3945 Integrated Services Router 256 MB 1 GB Ordering Information This product is orderable in three simple steps:Summary of Contents of data sheet for Cisco 3845 CISCO3845-SEC/K9. "show inventory" shows the part ID of the SFP installed which can be used to find out the transceiver type. We would like to show you a description here but the site won’t allow us. Table 2 shows platform memory specifications to support the Cisco IOS H323 Gatekeeper. 3(8)T for 1841. The Cisco 3900 Series builds on the best-in-class offering of the existing Cisco 3800 Series Integrated Services. bin and it is not supporting some IP SLA commands . Cisco 3945. Cisco 3945 Application Experience - router - desktop, rack-mountable. Newegg shopping upgraded ™. NOTE: Images may not be exact; please check specifications. We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Cisco GPON SFP Data Sheet 23/Oct/2020. 82 MB) PDF - This Chapter (1. Product Dimensions : 17. Back. Cisco ASA 5500 Series Content Security and Control Module. Cisco 3925E. Buy a Cisco 3945 Router w 3xGbE, 4xEHWIC, 4xDSP, 4xSM, IP Base and get great service and fast delivery. CISCO3945E-V/K9 -Cisco 3945 Voice Bundle, PVDM3-64, UC License PAK Product Specification: Place of Origin : USA Brand Name : CISCO Certification : FCC Model Number : CISCO3945E-V/K9 Minimum Order Quantity : 1/unit Delivery Time : 3 daysThe Cisco 3945 router, modular Services Performance Engine (SPE) 150, which can be upgraded for even higher performance as next-generation WAN environments evolve. 4 . 4-pair EFM/ATM over G. New Cisco NIM cards for Cisco ISR 4000 Family. Up to 900 Gbps. Statement. 3945 Grandis Pl is a 5,349 square foot house on a 10,023 square foot lot with 4 bedrooms and 4. 950-Cisco 3925E ISR. Quick Specs Table 1 shows the Quick Specs ofBuy Cisco 3900 Series Integrated Service Router CISCO3945/K9:. 83 MB) PDF - This Chapter (233. VLP RDIMM expansion slots—2; both must be the same density. These features include Cisco IOS Secure Sockets Layer (SSL) VPN, Cisco IOS Intrusion Prevention System (IPS), and Cisco IOS Content Filtering. Panoramica delle specifiche. Repeat the “show version command. Cisco. Specifications. The LEC has been to the site and verified connectivity through the SmartJack. CISCO3945-SEC/K9 Cisco 3945 Integrated Services Router 2 x SFP (mini-GBIC), 4 x PVDM, 5 x Services Module, 4 x HWIC, 2 x CompactFlash (CF) Card 3 x 10/100/1000Base-T WAN (Refurbished). 78 Mbps (HALF duplex, no encryption) of traffic (CEF enabled). Dimensions & Weight Width 17. 5 to 24 Ports. 3925E vs. ”. I am trying to turn up a Multilink, 2 T1 bundle, but I am having difficulties, thus I am here. The C3945-CME-SRST/K9 Cisco Integrated Services Router 3945 UC Bundle is a high-performance router that is designed for small to medium-sized businesses, enterprise branch offices, and service provider-managed customer premises equipment (CPE) applications. and application services. 11-16-2011 01:20 PM. Other Cisco IOS software releases may inherit Cisco Unified CME 8. CISCO3945-HSEC+/K9 -Cisco 3945 VPN ISM module HSEC bundles for 3945 ISR platform Product Specification: Place of Origin : USA Brand Name : CISCO Certification : FCC Model Number : CISCO3945-HSEC+/K9 Minimum Order Quantity : 1/unit Delivery Time : 3 daysCisco 3945 4 4 Cisco 3925E 3 3 Cisco 3945E 3 3 Cisco 1841 1 1 Cisco 2801 2 1 Cisco 2811 2 1 Cisco 2821 2 1 Cisco 2851 2 1 Cisco 3825 4 2 Cisco 3845 4 4 Table 1A provides relevant software information Router Chassis Software Release Minimum Software Package Cisco 1921. Page of 13 Go. 150-1. 4 kbps. The Cisco IOS H323 Gatekeeper is integrated Cisco IOS Software application that runs on the Cisco 2900 and 3900 Series Integrated Services Routers. 36 cm) 1 Typical power consumption is with a 24 VDC input voltage at a 40°C (104°F) ambient temperature. 752. The HSEC-K9 license removes the curtailment enforced by the U. Maximum SIP Trunk Sessions **. Item #858417. 2100. 25 x 18. Table 2-1 shows the comparison between Cisco SM-D-72FXS and SM-D-48FXS-E. 7. Annual costs for this model is $71. This site operates with -48 VDC power, so I reviewed the switch specifications, and they mention that the PSUs are rated for "DC 24-60V/10A", the only other available PSU option is rated for "AC 100-240V/2. 800. 2 in Weight 39. Recommended DRAM . This home is currently off market - it last sold on May 14, 1987 for. $15,00000. Cisco 3845 HVSEC Bundle with IOS Advanced IP Services, PVDM2-64, AIM-VPN/SSL-3, 100 User SRST License, 25 User SSL VPN License, 512 MB Flash/1GB DRAM. Table 1. 6-Gbps aggregate toward the router processor. hstuan. Description. 28cm)Cisco SRST is not dependent on Cisco CallManager versions, but phone loads. 8 x 7. The SFP-1G-SX module will only operate in 10G capable ports and will not operate in 1G only ports. (A DB-9-to-DB-25 adapter is also included with the Cisco 2901 router. Value . Cisco 3945. 1 results for Cisco 3945 Integrated Services Router. Power Specifications. Detailed specifications are available at the locations listed in Table 9. You need to provide a RJ-45-to-DB-25 female DTE adapter if you want to connect the switch console port to a terminal. ) For detailed information about connecting devices to the auxiliary port, see the “Connecting to a Console Terminal or Modem” section. 75 inches (4. Cisco 3925/3945 Integrated Services Routers . This bundle provides PVDM3-64 and UC License PAK. The response should now read “will be 0x2142 at next reload. 5 Data Sheet Cisco Unified Communications Manager Express 11. 4 x RJ-45 + 2 x SFP embedded ports, up to 1G WAN. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. 50 in. Cisco Unified Communications Manager Express IP phones-Up to 250 IP phones Small to large branch connectivity-Up to 24 T1/E1 trunks Analog phones, fax machines, key systems, and conference stations-Up to 88 FXS ports Local or long-distance calling with the EVM module-Up to 48 foreign exchange office (FXO)CISCO3945-VSEC-CUBE/K9 -Cisco C3945 VSEC CUBE Bundle, PVDM3-64, UC SEC Lic, FL-CUBEE-25 Product Specification: Place of Origin : USA Brand Name : CISCO Certification : FCC Model Number : CISCO3945-VSEC-CUBE/K9 Minimum Order Quantity : 1/unit Delivery Time : 3 daysBuy Cisco 3945 Integrated Services Router with fast shipping and top-rated customer service. Product Dimensions 19 x 17 x 6 inches : Item model number CISCO3945/K9 : Manufacturer Part Number CISCO3945/K9 : Additional Information. 3925 Router. † Cisco 2900 Series and 3900 Series Integrated Services Routers Hardware Installation Guide † Cisco 1900 Series Integrated Services Routers Hardware Installation Guide. Page of 13 Go. How I can do upgrade ? It seems on 3900, it needs IOS software activation to activate new services and im. C3845-H-VSEC/K9. 6-Gbps aggregate toward the router processor Up to 2-Gbps aggregate to other module slots. 15 lbs) 17. White Papers. Zoro UK. on the Cisco 3945 and Cisco 3925 allow for flexible configurations. CISCO3945-HSEC+/K9 -Cisco 3945 VPN ISM module HSEC bundles for 3945 ISR platform Product Specification: Place of Origin : USA Brand Name : CISCO Certification : FCC Model Number : CISCO3945-HSEC+/K9 Minimum Order Quantity : 1/unit Delivery Time : 3 daysTable 8 gives you a performance sample at 75% CPU. Cisco 3945-E. Main Specs; Extended Specs; Capacity: Cisco Unified Communications Manager Express sessions: 350 : Compliant Standards: IEEE 802. 8. 2 were tested with cmterm-7940-7960-sccp. Price. Product Overview. † Specifications for the Cisco Nexus 5548 Power Supply, page B-4 † Specifications for the Cisco Nexus 5020 Power Supplies, page B-5 † Specifications for the Cisco Nexus 5010 Power Supply, page B-6 Specifications for the Cisco Nexus 5596 Power Supply Table B-8 lists the specifications for the Cisco Nexus NXA-PAC-1100W and N55-PAC-1100W AC Slot and Port Numbers. By adding virtualization to the servers, you can deploy new services incrementally on a schedule that best meets your timing and budget. Depth. The Cisco 3900 Series builds on the best-in-class offering of the existing Cisco 3800 Series Integrated Services Routers by now offering four platforms: the Cisco 3945E, Cisco 3925E, Cisco 3945, and Cisco. 3 cm (5. 2 in. Free PDF of Cisco CISCO3925/K9 Router. 3(14)T . Supported Platforms and Memory Specifications: SIP IP Phones* Cisco Platform. Cisco 3825/3925, and Cisco 3845/3945 routers; PoE option not available with DC system power input Software SupportUse these kits when you want to center-rack mount the Catalyst 4500-X series switch chassis in either a 19-inch or a 23-inch rack. Overview, appearance, specifications of Cisco ISR 3900 Series Router. Feature Information. Cisco 3945-SEC Integrated Services Router - Technical Overview. 5 GB. Item#:. 3 cm (5. Up to 2-Gbps aggregate to other module slots over the MGF. The supplied RJ-45-to-DB-9 adapter cable is used to connect the console port of the switch to a console PC. Cisco 3945 Voice Sec. Cisco IOS SP Services feature sets are required to support ATM. 8 x CPRI Option 3-8; 4 x 1 /. Shop best price Cisco3945-V/K9, Cisco 3945 routers in stock for fast shipping Cisco 3945 Voice Bundle, PVDM3-64, UC License PAK, 3945 UC Bundle to the worldwide. 0 GB in each slot. Cisco 3900 Series Integrated Services Routers - Learn product details such as features and benefits, as well as hardware and software specifications. – 2-port SKU: VWIC3-2MFT-T1/E1. Cisco 3925E. In this platform, you can achieve power redundancy by installing an optional integrated redundant power supply (RPS), which helps decrease network downtime and protects the network from power-supply failures. network hubs. 5. View and Download Cisco 2900 series installation manual online. 25-May-2022. 42 mm) Depth—22. Cisco 1905 Integrated Services Router Data Sheet (PDF - 558 KB) 11/May/2010. 5 GB. Dimensions. Up to 2 Cisco 3945 Configuration Manual (409 pages) Cisco 3900 Series, Cisco 2900 Series, Cisco 1900 Series. The integrated services routers generation 2 are future-enabled with support for the. To get a list of Cisco IOS software releases that support Cisco Unified CME 8. Table 2. 50 GHz each (17. Power Specifications. The modules support balanced and unbalanced E1 connectivity and conform to the G. 0A 50-60Hz. The rich QoS features and distributed processing attributes of the Cisco 7600 SIP-400 make it a cornerstone of a highly scalable WAN aggregation solution. Ships from. Please refer to ASR 9000 Series Compact Chassis Data Sheets for the ASR 9903, ASR 9902, ASR 9901 and ASR 9001 data sheets. 75 inches : Item Weight : 11. HTH. Sort by: SKU (A to Z) SKU (A to Z) SKU (Z to A) Inventory quantities are subject to availability and are not guaranteed until the order is placed. The Cisco Secure Network Server 3715 is designed for small deployments. Amazon. Cisco C3945-AX/K9 for $15,647. As modular solutions the Cisco 3660, the Cisco 3640, and. End-of-Sale and End-of-Life Announcement for the Cisco Meeting Server 1000 M5v2. Cisco SBA incorporates LAN, WAN, wireless, security, data center, appli - cation optimization, and unified communication technologies—tested together as a complete system. Modularity Features and Benefits The Cisco 3900 Series provides significantly enhanced modular capabilities (refer to Table 3) while maintaining investment protection for customers. 02-07-2011 05:02 AM. Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide, Cisco IOS XE 17 22-Aug-2023. com FREE DELIVERY possible on eligible purchases Amazon. The integrated services routers generation 2 are future-enabled with support for the. Compare. Maximum power consumption is the extreme level at any operational DC input voltage over the entire operating temperature range. 24 x 18. Figure 1. Operating the router outside of the limits specified is not supported. The Cisco 2900 Series Integrated Service Routers comprise four platforms: the Cisco 2901, 2911, 2921, and 2951 ISRs with part numbers shown in Table 6. The Cisco ® 4-Port Clear Channel T1/E1 High-Speed WAN Interface Card provides n x T1/E1 connectivity in a compact form factor and reduces deployment and management costs for the Cisco 2800, 3800, 2900 and 3900 Series Integrated Services Routers. The Cisco ASR 1001-X Router has the route processor, embedded services processor, and SIP integrated in the chassis. This bundle provides PVDM3-64 and UC License PAK. 22 x 17. PDF - Complete Book (9. Cisco Catalyst 4500 Series Switch Data Sheet 24/Mar/2017. Specifications: -Product Type: Router -Form Factor: Desktop - modular - 3U -Connectivity Technology: Wired -Data Link Protocol: Ethernet, Fast. cisco. 43 mm) Width—17. 10. 00 $ 5,995. Cisco Systems, Inc CISCO3945-CHASSIS Features. 256 MB. Product Dimensions 17. • Cisco 3945 with 3 onboard GE, C3900-SPE150/K9, 4 EHWIC slots, 4 DSP slots, 1 ISM slot, 4 SM slots, 256MB CF. All, I have a customer who initially specified Juniper M7i and M10i routers in dual redundant configurations across an 8,000 mile WAN point-to-point link. (Rate if it helps) JB. Jon Marshall. 15,. Yes. (133. The Cisco SRE Service Module is supported on Cisco 2911, 2921, 2951, 3925, 3925E, 3945, and 3945E Integrated Services Routers, part of the Cisco ISR G2 portfolio. 26 in. Applies only to Cisco 3945 and Cisco 3945E routers. Hardware Specifications : HWIC-4SHDSL-E. 9. Model: Cisco 3945 - Remove Filter; Model. We are however seeing the option under Cisco 2901 routers. 01-Feb-2010. 25 x 18. Cisco 3800 and 3900 Series ATM OC-3 Network Module. Cisco routers support Cisco IOS software entitlement and enforcement on various platforms. Cisco 3945 ES24 UCSE Bundle, SRE 900 or SRE 910,SRE-V License, 24 port Layer 3 PoE EtherSwitch SM, PoE Power Supply, 4 GB ISR DRAM, ISR 768 MB Compact Flash, IMC Express. Cisco 3945 Security Bundle w/SEC license PAK REMANUFACTURED. 10,000 ft maximum except CCC 1 only up to 2000 meters. See the latest ratings, reviews and troubleshooting tips written by technology professionals working in businesses like yours. 45 Ports and above. A Cisco 3945E router can handle up to 2924000 PPS, which. With Cisco SD-WAN, you get all the business-grade capabilities of a Multiprotocol Label Switching (MPLS) VPN using other types of less-expensive links. So, I'm unsure it's possible on a 3945. 2,500-Cisco 4321 ISR. Cisco 2951 Integrated Services Router . Overview of the Hardware and Software. Here you can read the following table of comparison of Cisco 4451-x and Cisco 3900 series. 0 (1) and later versions, use the complete filename including the file suffix when you configure the load command for phone firmware versions later than version 8-2-2 for all phone types except 69xx, 89xx, and 99xx phones. Brand: Cisco | Category: Network Router | Size: 4. Model: CISCO3945/K9 Cisco 3945 Router 3900 Series ISR G2. Specification. For cable and port pinouts, see the Cisco Modular Access Router Cable Specifications document at Cisco. If your Catalyst 4507R or Catalyst 4510R switch chassis has a Supervisor Engine 6-E (WS-X45-SUP6-E) or a Supervisor Engine 6L-E (WS-X45-SUP6L-E) installed in slot 1 and slot 2 is empty, you must install the blank line card (C4K. T3. Cisco Nexus 7000 M1-Series 48-Port Fiber GE Module with XL. Home > Indexes > Cisco Systems > C3945-AX/K9. For cable pinouts, see the Cisco Modular Access Router Cable Specifications document. 2in. Has 2 onboard Gigabit Ethernet ports. Description. Shopping Guide . S. 1. 19. Physical Dimensions. Cisco 3900 Series Integrated Services Routers - Learn product details such as features and benefits, as well as hardware and software specifications. CISCO. 02 lbs) CISPR 22 Class A, CISPR 24, EN55024,. Connecting Cisco High-Density Extension Modules to the Network. Table A-1 lists the operational limits of the Cisco 812 ISR. 675 Gbps of RFC 2544 NDR traffic; however, Figure 1 merely recommends it for a 350Mbps circuit. Its appearance is similar with CISCO3945/K9, but it's bundled with Voice Sec. C3825. Cisco Catalyst SD-WAN-enabled, 5G/LTE-ready modular enterprise branch router with 1 x PIM, 1 x NIM, and 1 x SM slot. If a virtual machine uses ESXi 6. ) SM-ES3G-16-P Enhanced EtherSwitch Service Module, L2/L3 switching, 16*. CDE3. Table 9 gives product hardware specifications. pdf), Text File (. PoE has four versions: Cisco Catalyst 4500. Download. UC&SEC Lic. Table 2. The new platforms are architected to enable the next phase of branch-office evolution, providing rich media collaboration and virtualization to the branch while maximizing operational cost savings. Cisco ASR 1001-X Router Specifications. EVOLIS PRIMACY. Feature . Cisco 3945 series routers have four slots for service modules. Cisco 3945 Integrated Services Router - Office Depot. These modules use the 68-pin OCTAL Cables such as the CAB-OCTAL-ASYNC= and CAB-OCTAL-MODEM=. 25 x 17. Specifications include w/SPE150 (3GE, 4EHWIC, 4DSP, 4SM, 256MBCF, 1GBDRAM, IPB). 01 MB) View with Adobe Reader on a variety of devicesCisco 3945 CISCO3945-V/K9 Data Sheet. 3, IEEE 802. Cisco IOS Compatibility. Cisco Nexus 7000 M1-Series 48-Port Copper GE Module with XL. Buy Cisco CISCO3945-SEC/K9 3945 Security w SEC Lic FD: Switches - Amazon. Cisco 3945E. Port Quantity. 26 in. Free PDF of Cisco CISCO3945E/K9. Find many great new & used options and get the best deals for Cisco 3945 3-Port Gigabit Wired Router (CISCO3945/K9) at the best online prices at eBay! Free shipping for many products! Shop best price Cisco3945-V/K9, Cisco 3945 routers in stock for fast shipping Cisco 3945 Voice Bundle, PVDM3-64, UC License PAK, 3945 UC Bundle to the worldwide. Table 3 summarizes the features and benefits of Cisco IP Communications voice/fax network modules. 0 GB; 1. ☆ Cisco Unified Survivable Remote Site Telephony (SRST), which serves as a resiliency complement to Cisco Hosted Collaboration Solution (HCS), a Cisco cloud-based UC service. The 7915 and 7916 expansion modules are supported only on the 7962, 7965, and 7975. Cisco ISR 4451-X vs. 5 GHz reserved) (Applicable for Unity Connection Release 14) vCPU (Number of Virtual Processors) 1 Cores and Speed per Core 2. The platforms are architected to enable the next phase of branch-office evolution, providing rich media collaboration and virtualization to the branch while maximizing operational cost savings. 3900: Product Model. When you mean 1Gb, do you mean an entire chassis or per interface? The entire chassis of the 7200VXR with NPE-G2 can push up to 1Gbps of traffic (HALF duplex, no encryption). Cisco 100GBASE QSFP-DD 100G ZR Module Data Sheet 28/Oct/2022. com: Cisco CISCO3945/K9 3945 Integrated Services Router - 4 x PVDM, 4 x HWIC, 5 x Services Module,. The recommendation was apparently based on latency and jitter performance. English. 02 lbs . 81 x 54. 2 in Weight 39. Figure 1-9 Cisco 3900 Series Router with Service Module Installed . For quickest response, please complete the buy/sell form at the top of the page. Condition. We’re going to show you the comparison of cisco 3825, 3925, 3925E, 3845, 3945, and 3945E integrated services routers. CISCO3945-V/K9. The SFP-1G-SX interoperates with 1000BASE-SX modules. Cisco 3945 Integrated Services Router. Cisco Catalyst 4500 Series Switches - Learn product details such as features and benefits, as well as hardware and software. Technical Specifications. Cisco 3925 Integrated Services Router; Cisco 3925E Integrated Services Router; Cisco 3945 Integrated Services Router; Cisco 3945E Integrated Services RouterCisco 3945 Integrated Services Router - Cisco 3945 Integrated Services Router: Access product specifications, documents, downloads, Visio stencils, product images, and. Product Overview. 1 results for Cisco 3945 Integrated Services Router. 350. The Cisco 7600 SIP-400 helps enable the Cisco 7600 Series to perform high-end WAN aggregation based on Ethernet, point-to-point circuits, Frame Relay, ATM, or POS. Throughput: FW + AVC + IPS (1024B) 2. 20 x 17. DSP. Maximum memory—2. Use these kits when you want to center-rack mount the Catalyst 4500-X series switch chassis in either a 19-inch or a 23-inch rack. CISCO3945/K9.