100G BiDi QSFP28 LR1 10km Transceiver (Side A): BIDI-100G-Q28-SL10A

BIDI-100G-Q28-SL10A is the Side A half of the 100G BiDi QSFP28 LR1 pair, built for 10km single-mode links carried on a single strand of fiber. The module runs single-lambda PAM4 modulation at 106.25 Gbps in a QSFP28 form factor per SFF-8679, with an EML laser transmitter on 1271nm paired to a PIN photodiode receiver tuned to 1331nm, each with 13nm wave bandwidth.

Average link budget is 6.1 dB, with launch power from -1.4 to 4.5 dBm per lane and receiver sensitivity from -7.5 to 4.5 dBm per lane, and 5.5 dBm receiver overload. FEC runs integrated in the DSP with CDR support, and the module reports DDM and DOM telemetry over the single LC/UPC connector. Power draw is bounded at 4.5W from a single +3.3V supply.

Operating temperature runs 0 to 70C, with storage from -40 to 85C and 5 to 85% relative humidity. The module is CE and RoHS compliant, meets IEEE 802.3cd for the CAUI-4 electrical interface, and follows the QSFP28 SFF-8679 mechanical and management interface.

A BiDi pair multiplexes transmit and receive onto a single strand instead of the duplex fiber pair a standard LR module needs, so a route built on BiDi optics uses half the fiber count of an equivalent duplex-LR link. That single-strand approach helps where duct space or patch panel capacity is limited.

This Side A module transmits on 1271nm and receives on 1331nm; wavelength assignment is not standardized industry-wide across BiDi vendors, so treat 1271nm/1331nm as this module's specific plan rather than a universal figure. It must be paired with the Side B module, BIDI-100G-Q28-SL10B, which transmits on 1331nm and receives on 1271nm, at the opposite end of the same fiber strand. Connecting two Side A modules, or a Side A to any non-matching wavelength pair, will not establish a link. Each side uses a single LC/UPC connector for the shared strand, not the duplex LC connector used on standard non-BiDi QSFP28 LR modules.

The transceiver targets broad multi-vendor QSFP28 host compatibility rather than a single switch or router platform. Verify the target chassis and line card against its transceiver compatibility list before ordering, since supported optics tables vary by vendor and firmware release.

Backed by 15+ years of EDGEOPTIC compatibility engineering across vendor optical platforms, this module ships next business day from EU stock with a lifetime warranty. For project-quantity pricing or a matched Side A and Side B pair, contact our sales team.