SFP+ 10G BiDirectional optical module, single strand Tx:1270/Rx:1330nm and Tx:1330/Rx:1270nm, 20km
Note:
SFP-1020-WA is replacing entirely the older SFP-1010-WA (10Km) model. SFP-1020-WA can be matched with older SFP-1010-WB and it is safe to be used on "same desk" with no attenuation required.
SFP-1020-WB is replacing entirely the older SFP-1010-WB (10Km) model. SFP-1020-WB can be matched with older SFP-1010-WA and it is safe to be used on "same desk" with no attenuation required.
SFP-1020-WA Product description
SFP-1020-WA 10G SFP+ single strand BiDirectional transceiver specifications
| Form factor | SFP |
| Speed | 9.95 to 10.3Gb/s |
| Optical connector | single LC |
| Operating distance | 20Km |
| Power | single 3.3V |
| Compliance | MSA SFF-8431, RoHS |
| Operating mode | Bi-Directional |
| Fiber type | Single-mode 9/125um, single strand |
| Wavelength | Tx:1270nm/Rx:1330nm |
| Digital Diagnostic | Yes (SFF-8472 compliant) |
Additional information on SFP-1020-WA transceiver: 
PDF Datasheet
SFP-1020-WB Product description
The SFP-1020-WB is a BiDirectional single fiber strand 10G SFP+ optical module using Tx:1330nm and Rx:1270nm wavelengths.
The transceiver supports all 10G rated speeds for Ethernet, SONET, SDH or Fibre Channel networks.
SFP-1020-WB must be paired with the SFP-1020-WA model to have an operational link.
The BiDirectional optical transceivers offer a great advantage of saving precious dark fiber and thus practically doubling the fiber capacity when compared with the traditional two strand modules.
SFP-1020-WB 10G SFP+ single strand BiDirectional transceiver specifications
| Form factor | SFP |
| Speed | 9.95 to 10.3Gb/s |
| Optical connector | single LC |
| Operating distance | 20Km |
| Power | single 3.3V |
| Compliance | MSA SFF-8431, RoHS |
| Operating mode | Bi-Directional |
| Fiber type | Single-mode 9/125um, single strand |
| Wavelength | Tx:1330nm/Rx:1270nm |
| Digital Diagnostic | Yes (SFF-8472 compliant) |
Additional information on SFP-1020-WB transceiver: PDF Datasheet