Q1: What do -S and -X signify, as in SFP-10G-SR-S and SFP-10G-SR-X?
A: -S in SFP-10G-SR-S means S-class, the S-class is different from Non-class in temperature range, networking environment and cost. -X in SFP-10G-SR-X signifies the extended ability for temperature. The module could be operated under wider temperature variation, from -40℃ to 85℃ (-40℉ to 365℉).
Q2: Can we use SFP+ optical module in SFP slots?
A: The answer is NO. As a rule of thumb, the SFP optical module can be operated in the SFP+ slot, but the SFP+ optical module can’t run in the SFP slot. When you insert a SFP+ module on a SFP port, the speed of this port is 1G instead of 10G.
Q3: Can Cisco SFP+ transceivers be used in other brands equipment?
A: No, Cisco SFP+ transceivers are not encouraged to use in other brands equipment because the codes from different vendors might be unmatched. However, some optical switches from certain vendors can be matched with any other brands devices.
Q4: What is the difference between SFP-10G-LR and SFP-10G-LRM?
A: The Cisco 10GBASE-LRM module supports link lengths of 220m on multimode fiber and 300m on singlemode fiber, while Cisco 10GBASE-LR supports 10km on standard singlemode fiber. The price of Cisco SFP-10G-LR is a little bit higher than Cisco SFP-10G-LRM.
Q5: Can 10GBASE-T down-support 10/100/1000Mbps?
A: In most cases, 10GBASE-T SFP+ can auto-negotiate to 10/100/1000Mbps data rate, but it might vary according to different vendors. A 10GBASE-T transceiver from HPE, MikroTik, HTFWDM.COM can down-support 10/100/1000Mbps. Cisco 10gbase-t SFP+ can operate at 10, 100, or 1000 Mbps on some Cisco devices.
Q6: Can I use Cisco compatible SFP+ modules in any Cisco switch w/ SFP+ port?
A: Theoretically, Cisco compatible SFP+ modules cannot be used in any Cisco switches as different Cisco switches have distinct requirement for codes and hardware. For example, Cisco SFP/SFP+ is not certified to work with Cisco Meraki products. For Cisco 10G transceiver module compatible switches, you can refer to Cisco 10-Gigabit Ethernet transceiver modules compatibility matrix and Cisco 10-Gigabit Ethernet transceiver modules datasheet.
HTFWDM.COM Cisco 10G SFP+ Solution
In recent years, using non-OEM optical transceivers in fiber optic network is a new trend. More and more MSOs and service providers prefer to utilize third-party pluggable optics as they are assured to be fully compatible with the original brand hardware. Moreover, third-party optics have absolute advantage on price. The follow table shows the large price gap between Cisco 10G SFP+ modules and HTF 3-rd party optics.
In addition to the huge price discrepancy between OEM and third-party Cisco 10G SFP+ modules, the branded optical transceivers seem to have fairly short warranty periods. HTF truly understands the value of Cisco SFP+ compatibility matrix and interoperability to each optics. HTFWDM.COM third-party optics must run through programming and an extensive series of platform diagnostic tests to prove its performance and compatibility. In addition, our Cisco compatible modules can be customized according to customers’ individual needs—connector, wavelength, transmission distance and temperature.
