Cisco GLC-BX-D 1000BASE-BX10 is a single-mode SFP transceiver module manufactured by Cisco. It uses the 1000BASE-BX10 standard with a wavelength of 1490 nm for downstream data transmission and supports speeds up to 1 Gbps over single-fiber connections.

This module is designed for one LC simplex fiber port and is typically used in pairs with the GLC-BX-U. Compatible with various Cisco switches and routers that support 1000BASE SFPs, it enables bidirectional communication over distances up to 10 km. The module is hot-swappable and operates on standard SFP interfaces without requiring an external power adapter.

Cisco GLC-BX-D 1000BASE-BX10: SFP transceiver module for single strand SMF, 1490-nm TX/1310-nm RX wavelength