SFP Fiber Transceiver Modules, GLC-BX-D, 1000BASE-BX10-D WDM Bi-Directional, TX1490nm/RX1310nm SMF, up to 20 Kilometers, LC, Cisco Compatible
The industry-standard Small Form-Factor Pluggable (SFP) Gigabit Interface Converter is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network. SFPs can be used and interchanged on a wide variety of media converters and ethernet switches.
The TRC-4688-GLCD and TRC-4687-GLCU SFPs, compatible with the IEEE 802.3ah TRC-4688-GLCD and TRC-4687-GLCU standards, operate on a single strand of standard SMF.
A TRC-4688-GLCD device is always connected to a TRC-4687-GLCU device with a single strand of standard SMF with an operating transmission range up to 20 km.
The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices: TRC-4688-GLCD transmits a 1490-nm channel and receives a 1310-nm signal, whereas TRC-4687-GLCU transmits at a 1310-nm wavelength and receives a 1490-nm signal. There is a wavelength-division multiplexing (WDM) splitter integrated into the SFP to split the 1310-nm and 1490-nm light paths.
The TRC-4688-GLCD and TRC-4687-GLCU 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.
