Alliance Datacom Alliance Datacom

Repair Depot

We specialize in repairing the most popular networking products in use today? We repair Cisco, Adtran, Nortel, Juniper, 3COM, Extreme and more. Our specially trained technicians repair your equipment right the first time. In-house professionally staffed component level repair operation offering immediate assistance. Please call 888-872-5619 and ask for the repair department.


Alliance Datacom

Your trusted, global resource for new or used Cisco equipment, parts and accessories. We carry the award winning line of Cisco routers and Cisco switches below list and shipping daily with an industry leading 1-year warranty. Alliance Datacom is a trusted advisor to corporate end-users providing fast delivery of new, used, refurbished, as well as remanufactured WAN (data communication) network equipment products worldwide. We have our own, in-house professionally staffed component level repair operation offering repair on most WAN products. As a wide area networking solution provider to corporate end-users, we offer one of the world's largest product selections of Cisco, Adtran, Nortel, Juniper and Extreme Networks all at discounted prices. Same day shipping on most items, fast delivery and friendly customer service...guaranteed! Experience the Alliance Datacom difference today.


3Com Switch 40x0 Family

Switches with advanced Layer 2 and Layer 3 capabilities designed for demanding core backbones. Options include SFP (Small Form-factor Plug-in) transceivers, switch and GBIC modules, redundant power, spare fan, and support for XRN technology for high-availability, multilayer Gigabit Ethernet switching.

40x0 Family
Part# Description Add
40x0FamilyOverview Managed Layer 2/3/4 Gigabit Switching. Fixed configuration. Ideal for building switching in the core, and for workgroup aggregation. With scalability and high resiliency features including XRN™ technology.
3C17707-US High-availability, multilayer Gigabit Ethernet switching for the network backbone in a fixed configuration unit. Maximum media flexibility with 24 SFP slots. Optional XRN™ technology support.
3C17709-US High-availability, multilayer Gigabit Ethernet switching for the network backbone in a fixed configuration unit. 24-port configuration with 12 1000BASE-SX ports, six GBIC ports, and six integrated 10/100/1000 ports. Optional XRN™ technology support.
3C17708-US High-availability, multilayer Gigabit Ethernet switching for the network backbone in a fixed configuration unit. 24-port configuration with six 1000BASE-SX ports, six GBIC ports, and 12 integrated 10/100/1000 ports. Optional XRN™ technology support.
XRNDistributed Enables two SuperStack 3 Switch 4900 family or two 3Com Switch 40x0 switches to build an XRN™ Distributed Fabric for high-availability, multilayer Gigabit Ethernet switching
GigabitMultilayer 3Com Gigabit Multilayer Switching (GMS) software provides feature-rich Layer 2 functionality, Layer 3 switching for IP networks, and enhanced QoS services.
3C17711 Adds a 1000BASE-T backbone link to the 3Com® SuperStack® 3 Switch 4900 family, and 3Com Switch 4050, Switch 4060 and Switch 4070
3C17710 Adds a 1000BASE-SX backbone link to the 3Com® SuperStack® 3 Switch 4900 family, and 3Com Switch 4050, Switch 4060 and Switch 4070
3C17712 Adds a 1000BASE-LX backbone link to the 3Com® SuperStack® 3 Switch 4900 family, and 3Com Switch 4050, Switch 4060 and Switch 4070
3C17714 Using a 3Com® SuperStack® 3 GBIC (1000BASE-SX, 1000BASE-LX, or long-haul), this module lets the SuperStack® 3 Switch 4900 family, and 3Com Switch 4050, Switch 4060 and Switch 4070 support a variety of media in the same platform
3C17715 Enables two SuperStack 3 Switch 4900 family or two 3Com Switch 4050, Switch 4060 and 3Com Switch 4070 switches to build an XRN™ Phase One Distributed Fabric for high-availability, multilayer Gigabit Ethernet switching
3C17722 Optional five-meter cable used with 3Com XRN™ Interconnect Kit; connects two 3Com® SuperStack® 3 Switch 4900 family or 3Com Switch 4050, Switch 4060 and Switch 4070 units when a longer cable is needed
3CSFP91 Adds a 1000BASE-SX backbone link by enabling the SFP slots in selected 3Com switches and modules
3CSFP92 Adds a 1000BASE-LX backbone link by enabling the SFP slots in selected 3Com switches and modules
3CSFP93 Adds a 1000BASE-T backbone link by enabling the SFP slots in selected 3Com switches and modules
3CSFP97 Adds a 1000BASE-LH backbone link by enabling the SFP slots in selected 3Com switches and modules
3CGBIC91 Adds a 1000BASE-SX backbone link by enabling the GBIC slots in selected 3Com switches and modules
3CGBIC92 Adds a 1000BASE-LX backbone link by enabling the GBIC slots in selected 3Com switches and modules
3CGBIC93A Adds a 1000BASE-T backbone link by enabling the GBIC slots in selected 3Com switches and modules
3CGBIC97 Adds a 1000BASE-LH backbone link by enabling the GBIC slots in selected 3Com switches and modules
3C17717 Spare fan tray for the 3Com® Switch 4050, Switch 4060, and Switch 4070
3C17718-US Second power supply adds redundancy for the 3Com® Switch 4050, Switch 4060, and Switch 4070