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The Cisco GLC-BX40-D-I, GLC-BX40-DA-I, and GLC-BX40-U-I SFPs operate on a single strand of standard SMF. A GLC-BX40-D-I or GLC-BX40-DA-I device connects to a GLC-BX40-U-I device with a single strand of standard SMF with an operating transmission range up to 40 km.
The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices. The GLC-BX40-D-I, GLC-BX40-DA-I, and GLC-BX40-U-I SFPs also support digital optical monitoring (DOM) functions according to the industry-standard SFF-8472 multisource agreement (MSA). This feature gives the end user the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.
| Performance | |
| SFP transceiver type | Fiber optic |
| Maximum data transfer rate | 1000 Mbit/s |
| Interface type | SFP |
| Single-mode fiber (SMF) supported | Yes |
| SFP transceiver standard | BX-D |
| Maximum transfer distance | 40000 m |
| Wavelength | 1550 nm |
| Tx power (min) | -5 dBmW |
| Tx power (max) | 3 dBmW |
| Rx power (min) | -25 dBmW |
| Rx power (max) | 3 dBmW |
| Networking standards | IEEE 802.3ah, IEEE 802.3z |
| Cabling technology | 1000BASE-BX40 |
| Features | |
| Product colour | Grey |
| Hot-swap | Yes |
| Power | |
| Power consumption (typical) | 1 W |
| Operational conditions | |
| Operating temperature (T-T) | -40 - 85 øC |
| Storage temperature (T-T) | -40 - 85 øC |
| Weight & dimensions | |
| Width | 13.4 mm |
| Depth | 56.5 mm |
| Height | 8.5 mm |
| Weight | 75 g |
| Packaging content | |
| Quantity per pack | 1 pc(s) |
| Logistics data | |
| Harmonized System (HS) code | 85369010 |
| Warranty | |
| Base Warranty | Non Non |