IBM 22R4902 Compatible 10GBASE-SR SFP+ Transceiver
IBM compatible 22R4902 - Key Features
- Compatibility: IBM
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 400 m
- Average Link Budget: 6.1 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 1.25 Gbps - 11.32 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
IBM 22R4902 Price
IBM compatible 22R4902 Specifications
Form Factor | SFP+ |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 400 m |
Average Link Budget | 6.1 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 1.25 Gbps - 11.32 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps) |
SDH/SONET Standards | STM-64 (9.95Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 20 nm (840-860 nm) |
Rx Wavelength Bandwidth | 20 nm (840-860 nm) |
Minimum Transmitting Power | -5 dBm |
Maximum Transmitting Power | 0 dBm |
Receiver Sensitivity | -11.1 dBm |
Receiver Overload | 0 dBm |
Dispersion | 110 ps/nm |
Transmitter Type | VSCEL Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA |
IBM compatible 22R4902 Datasheet
v3Complete technical specifications and product details
IBM compatible 22R4902 Description
EdgeOptic's 22R4902 compatible is an IBM-coded version of the EdgeOptic 10G-SFP-300 multi-vendor 10GBASE-SR SFP+ transceiver, positioned as the modern SR SFP+ replacement for IBM TotalStorage SAN b-type deployments that have upgraded from 4Gb FC SFP cages to SFP+ cages. The original IBM 22R4902 is a regular SFP (not SFP+) 4Gb Fibre Channel Shortwave optic for IBM's TotalStorage SAN b-type (Brocade-OEM) switch family, governed by the INCITS 404-2006 FC-PI-2 standard for 1/2/4GFC short-wave links. The 22R4902 ordering code was the standard SAN-fabric optic for 4Gb-era Brocade-branded IBM b-type deployments before the SFP+ transition to 8GFC and 10G Ethernet host ports.
The EdgeOptic 10GBASE-SR replacement is an SFP+ form factor module built to IEEE 802.3ae Clause 52, with a 6.1 dB optical budget, 850 nm VCSEL transmitter, LC duplex interface, transmit power between −5 and 0 dBm, and receive sensitivity better than −11.1 dBm. The reach envelope is 300 m on OM3 and 400 m on OM4 multimode fiber. The SR module is the forward-compatible replacement for b-type fabric switches that have migrated their host ports to SFP+ cages. Hosts still running SFP-only cages on legacy 4Gb FC b-type switches that were never refreshed to SFP+ cannot accept SFP+ optics directly. Verify cage compatibility against IBM TotalStorage SAN compatibility documentation for your specific switch model and firmware revision before substituting.
IBM-recognized EEPROM coding identifies the module under the ordering code that b-type Brocade-OEM switches running Fabric OS expect. Verify cage class and EEPROM acceptance against the IBM TotalStorage SAN compatibility documentation for the target switch model and firmware revision before substituting. Digital diagnostics per SFF-8472 reports temperature, supply voltage, transmit bias current, transmit power, and receive power on every read. The EdgeOptic SR replacement runs to the Ethernet 10GBASE-SR specification. The original 22R4902 is a Fibre Channel optic governed by FC-PI-2 with its own 4.25 Gbps signaling rate and FC-specific reach budget; the SR replacement is an Ethernet optic and is not a like-for-like protocol substitute on a Fibre Channel fabric. For continued 8Gb Fibre Channel coverage on IBM b-type SAN switches, the IBM 2054-5830 8Gb FC SFP+ ordering code applies on its supported platforms.
For IBM TotalStorage SAN b-type bill-of-materials questions, cage compatibility review, or bulk 22R4902 replacement orders, contact our sales team.
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Frequently Asked Questions
Does replacing the 22R4902 require a switch with SFP+ ports?
Yes. The original IBM 22R4902 is a regular SFP form factor 4Gb Fibre Channel Shortwave optic, while the EdgeOptic 10GBASE-SR replacement is SFP+. The two cages are mechanically distinct: an SFP+ optic does not fit in an SFP-only port. For IBM TotalStorage SAN b-type switches that have been refreshed to SFP+ host ports on current-generation line cards, the EdgeOptic 10GBASE-SR SFP+ drops directly into the upgraded cage. Hosts still running SFP-only cages on legacy 4Gb FC b-type switches that were never migrated cannot accept SFP+ optics directly. Verify the target switch has SFP+ host ports against the IBM TotalStorage SAN b-type compatibility documentation for your specific switch model and firmware revision before substituting.
What is the difference between the IBM 22R4902 (4Gb FC) and IBM b-type 8Gb FC SFP+ transceivers?
22R4902 is IBM's 4Gb Fibre Channel Shortwave SFP for TotalStorage SAN b-type 4Gb switches, governed by FC-PI-2 (INCITS 404-2006) with a maximum signaling rate of 4.25 Gbps. The IBM b-type 8Gb successor generation moved to SFP+ form factor; IBM 2054-5830 is the documented 8Gb FC SFP+ ordering code in the IBM b-type line. The two generations cover successive FC eras on the IBM b-type platform: 4Gb SFP, then 8Gb SFP+. Installing a 22R4902 in a port that expects an 8Gb SFP+ part, or installing an 8Gb SFP+ in a 4Gb SFP-only cage, results in the port rejecting the module on form factor grounds. Verify the IBM b-type 8Gb transceiver ordering code against the IBM b-type SAN compatibility documentation for your switch model.