A mid-range Cisco optic that can be used with either single-mode or multi-mode 10Gb fiber runs.
We use them at work to patch into building networks. The Cisco spec states these optics are 1310-nm wavelength, and suitable for 300m runs (single-mode) or 220m runs (OM3/OM4 multi-mode). I use them with Cisco 2960-S switches on OM4 MMF-- make sure to get the 2960 models that support 10G, ie that have SFP+ interfaces (only some do). Most Cisco switches that support SFP+ will support these LRMs.
For hops between switches in the same rack or room, skip the pair of optics + patch cable, you can instead use the much cheaper DAC copper cables, which have captive transceivers, such as
this 3M Cisco cable
. For multi-mode only runs, consider the 10G-SR, which may be a little cheaper and provide greater range over high-grade fiber (OM3 or OM4).
Note that the factory warranty on these is very short (90 days) so you want may to consider Cisco Smartnet extended service. New factory-packaged Cisco optics are pricey compared to the generic "Cisco-compatible" competition, but I prefer to use the Cisco branded parts rather than risk potential incompatibility using a 3rd party device, especially in high-volume high-throughput applications like 10Gb.
Recommended for mid-distance 10Gb usage where the fiber type is ambiguous, and for patching into existing 10Gb networks.
| Brand | Cisco |
|---|---|
| Item model number | SFP-10G-LRM= |
| Item Weight | 2.56 ounces |
| Product Dimensions | 2.22 x 0.53 x 0.33 inches |
| Item Dimensions LxWxH | 2.22 x 0.53 x 0.33 inches |
| Voltage | 240 Volts |
| Manufacturer | CISCO |
| ASIN | B003W3JHJC |
| Is Discontinued By Manufacturer | No |
| Date First Available | November 18, 2010 |
