Cisco 2960 overview

The new Cisco GLC-SX-MMD transceiver: 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM, is the replacement of the GLC-SX-MM. The GLC-SX-MMD SFP transceiver modules are hot-pluggable I/O devices that plug into module sockets. The transceiver connects the electrical circuitry of the module with the optical or copper network.   ou can use any combination of SFP transceiver modules that your Cisco device supports. The only restrictions are that each port must match the wavelength specifications on the other end of the cable and that the cable must not exceed the stipulated cable length for reliable communications. Use only Cisco SFP transceiver modules on your Cisco device. Each SFP transceiver module supports the Cisco Quality Identification (ID) feature which allows a Cisco switch or router to identify and validate that the transceiver module is certified and tested by Cisco.  

Cisco GLC-SX-MMD is compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50 ?m multimode fiber links up to 550 m and on 62.5 ?m FiberDistributed Data Interface (FDDI)-grade multimode fibers up to 220 m. It can support up to 1km over laser-optimized 50 ?m multimode fiber cable.

3Anetwork.com has many GLC-SX-MMD in stock, customers can consider GLC-SX-MMD or its replacement GLC-SX-MMDD, compare to GLC-SX-MMD, GLC-SX-MMDD has DOM function.

The price of the GLC-SX-MMD

The list price: US$500.00, 3Anetwork.com sells at: 71% off,US$145.00, reference: http://www.3anetwork.com/cisco-glc-sx-mmd-price_p1022.html, GLC-SX-MMD.

The similar SFP products, GLC-SX-MM, GLC-LH-SM