DS-SFP-FC8G-SW – 8G FC Shortwave SFP+ – LC MMF – 190m OM4/OM5
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DS-SFP-FC8G-SW Description
DS-SFP-FC8G-SW is a Cisco MDS 9000 Series shortwave Fibre Channel SFP+ transceiver for 2/4/8-Gbps SAN links on supported MDS ports. It uses a dual LC connector over multimode fiber at 850 nm, supports autosensing Fibre Channel operation at 2G, 4G, and 8G rates, and provides 8G reach up to 21 m on OM1, 50 m on OM2, 150 m on OM3, or 190 m on OM4/OM5, with a 2 m minimum cable distance for MDS optical link planning.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
DS-SFP-FC8G-SW |
|
Product type |
2/4/8-Gbps Fibre Channel shortwave SFP+ transceiver |
|
Ordering description |
2/4/8-Gbps Fibre Channel-Shortwave, SFP+, LC |
|
Form factor |
SFP+ |
|
Connector type |
Dual LC |
|
Fiber type |
Multimode fiber |
|
Wavelength |
850 nm |
|
Fibre Channel rates |
2/4/8-Gbps autosensing |
|
8G reach by MMF grade |
21 m OM1, 50 m OM2, 150 m OM3, 190 m OM4/OM5 |
|
Minimum cable distance |
2 m |
|
Compatible platform family |
Cisco MDS 9000 Series |
Application Scenarios
DS-SFP-FC8G-SW fits Cisco MDS ports when the SAN cable plant uses dual LC multimode fiber and the link distance matches Cisco’s 2/4/8G shortwave table.
Maintenance orders can reserve this part for installed 850 nm MMF paths. The nearby LW and ER part numbers require single-mode fiber, so they should not be substituted into a shortwave patch plan.
New Fibre Channel port builds can include DS-SFP-FC8G-SW when the target MDS product and NX-OS release family appear in Cisco’s transceiver support matrix for 2/4/8G shortwave LC optics.
Product Comparison
|
Parameter |
DS-SFP-FC8G-SW |
DS-SFP-FC8G-ER | |
|---|---|---|---|
|
Product type |
2/4/8G Fibre Channel shortwave SFP+ |
2/4/8G Fibre Channel longwave SFP+ |
2/4/8G Fibre Channel extended-reach SFP+ |
|
Ordering description |
2/4/8-Gbps Fibre Channel-Shortwave, SFP+, LC |
2/4/8-Gbps Fibre Channel-Longwave, SFP+, LC |
2/4/8-Gbps Fibre Channel Extended Reach SFP+, LC |
|
Connector type |
Dual LC |
Dual LC |
Dual LC |
|
Fiber type |
Multimode fiber |
Single-mode fiber |
Single-mode fiber |
|
Wavelength |
850 nm |
1310 nm |
1550 nm |
|
Core size |
62.5 microns OM1 or 50.0 microns OM2/OM3/OM4/OM5 |
9.0 microns |
9.0 microns |
|
Fibre Channel rates |
2/4/8-Gbps autosensing |
2/4/8-Gbps autosensing |
2/4/8-Gbps autosensing |
|
Maximum documented reach |
190 m at 8.5 GBd on OM4/OM5 MMF |
10 km on OS2 SMF |
40 km on SMF |
|
Minimum cable distance |
2 m |
2 m |
2 m |
|
MDS 8.x support columns |
8.1(x), 8.2(x), 8.3(x), 8.4(x), and 8.5(x) on listed products |
8.1(x), 8.2(x), 8.3(x), 8.4(x), and 8.5(x) on listed products |
8.1(x), 8.2(x), 8.3(x), 8.4(x), and 8.5(x) on listed products |
|
MDS 9.x support columns |
9.2(x), 9.3(x), and 9.4(x) on listed products |
9.2(x), 9.3(x), and 9.4(x) on listed products |
9.2(x), 9.3(x), and 9.4(x) on listed products |
- In a DS-SFP-FC8G-SW vs DS-SFP-FC8G-LW comparison, the table difference is media and distance: SW uses 850 nm multimode fiber for short links, while LW uses 1310 nm single-mode fiber for 10 km.
- The DS-SFP-FC8G-SW difference from DS-SFP-FC8G-ER is also reach class. DS-SFP-FC8G-SW is the shortwave MMF optic, while DS-SFP-FC8G-ER is the 1550 nm extended-reach optic for 40 km.
- For buyers comparing which model to choose, keep DS-SFP-FC8G-SW on the order when the MDS link needs Cisco 2/4/8G Fibre Channel LC MMF shortwave optics.
Selection Guide
1. Start with the fiber plant
Choose DS-SFP-FC8G-SW when the route is dual LC multimode fiber and the planned 8G span fits Cisco’s OM1, OM2, OM3, OM4, or OM5 shortwave distances.
2. Keep longwave optics out of MMF builds
Select DS-SFP-FC8G-LW only for 1310 nm single-mode fiber links. It shares the 2/4/8G Fibre Channel family but not the cabling profile of DS-SFP-FC8G-SW.
3. Use ER only for the extended-reach role
DS-SFP-FC8G-ER is the adjacent 1550 nm part for 40 km. It should be ordered for that reach requirement rather than for standard shortwave multimode cabling.
4. Confirm the MDS support row
Validate the exact MDS switch or module and NX-OS release family before the transceiver is added to a service spare order or a SAN expansion quote.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Exact part number |
The BOM requests DS-SFP-FC8G-SW |
Separates the 8G shortwave optic from LW, ER, 10G, 16G, and 32G lookalike part numbers |
|
Receiving MDS hardware |
The port is on a Cisco-listed MDS switch or module |
Keeps the transceiver tied to documented Fibre Channel platform support |
|
Software release family |
The installed NX-OS train maps to a supported 8.x or 9.x matrix column |
Avoids releasing a spare optic without checking the software support table |
|
Multimode cable grade |
The path is dual LC MMF with the correct OM grade |
Confirms the 850 nm optic matches the installed cable plant |
|
Link distance |
The run is at least 2 m and within the Cisco distance for the operating rate and fiber grade |
Prevents a shortwave optic from being assigned to an unsupported span |
|
Remote transceiver |
The far end uses a compatible 2/4/8G Fibre Channel shortwave optic |
Reduces turn-up risk from media, wavelength, or speed mismatch |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | DS-SFP-FC8G-SW | Product type | 2/4/8-Gbps Fibre Channel shortwave SFP+ transceiver |
| Ordering description | 2/4/8-Gbps Fibre Channel-Shortwave, SFP+, LC | Spare ordering description | 2/4/8-Gbps Fibre Channel-Shortwave, SFP+, LC, Spare |
| Form factor | SFP+ | Connector type | Dual LC |
| Compatible platform family | Cisco MDS 9000 Series | Fibre Channel connectivity | 2/4/8-Gbps ports |
| Fiber type | Multimode fiber | Supported core sizes | 62.5 microns OM1 or 50.0 microns OM2/OM3/OM4/OM5 |
| Wavelength | 850 nm | Baud rates | 2.125, 4.250, and 8.500 GBd |
| 8G distance on OM1 | 21 m | 8G distance on OM2 | 50 m |
| 8G distance on OM3 | 150 m | 8G distance on OM4/OM5 | 190 m |
| 4G distance on OM1 | 70 m | 4G distance on OM2 | 150 m |
| 4G distance on OM3 | 380 m | 4G distance on OM4 | 400 m |
| 2G distance on OM1 | 150 m | 2G distance on OM2 | 300 m |
| 2G distance on OM3 | 500 m | 2G distance on OM4 | 520 m |
| Minimum cable distance | 2 m | Module dimensions | 8.5 x 13.55 x 56.5 mm |
| Average transmit power | -10 to -1.3 dBm at 2G; -9 to -1.3 dBm at 4G; -8.2 to -1.3 dBm at 8G | Average receive power maximum | 0 dBm |
| Fiber-loss budget | OM1: 2.10 dB at 2G, 1.78 dB at 4G, 1.58 dB at 8G | Additional fiber-loss budget | OM2: 2.62 dB at 2G, 2.06 dB at 4G, 1.68 dB at 8G; OM3: 3.31 dB at 2G, 2.88 dB at 4G, 2.04 dB at 8G |
| Operating temperature | 0 to 70 degrees C | Storage temperature | -40 to 85 degrees C |
| Laser class | Class I 21CFR1040 | MDS 8.x support matrix releases | 8.1(x), 8.2(x), 8.3(x), 8.4(x), and 8.5(x) |
| MDS 9.x support matrix releases | 9.2(x), 9.3(x), and 9.4(x) | Compatible MDS products in 9.x matrix | DS-X9448-768K9, DS-X9334-K9, DS-X9648-1536K9, MDS 9220i, MDS 9250i, MDS 9148S, MDS 9396S, MDS 9132T, MDS 9148T, and MDS 9396T |
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Questions & Answers
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What is DS-SFP-FC8G-SW?
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How is DS-SFP-FC8G-SW different from DS-SFP-FC8G-LW?
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