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PD-LD offers replacement parts for Zarlink’s MF699 & MF799

October 31, 2011 – PD-LD, Inc., is pleased to announce that two of its bi-directional modules are replacing Zarlink Semiconductor, Inc.’s MF699 and MF799 duplex devices, which are no longer in production. PD-LD’s PW85ST replaces Zarlink MF799, and PD-LD PW13ST replaces Zarlink MF699.

Like the Zarlink MF799, PD-LD’s PW85ST emits optical power at 850nm and detects incoming optical power at 1310nm. The PW13ST, likewise, emits optical power at 1310nm and detects incoming power at 850nm.

The PW85ST and PW13ST feature Full-Duplex communication over a single multi-mode 62.5/125 µm fiber, a features the same benefits of low internal cross-talk and compact and rugged packaging. Applications include video transmittion, CATV, CCTV, ethernet, and intra-office telecom.

More information, including detailed data sheets, can be found at the PW85ST and PW13ST web pages. For additional inquiries, please contact us at

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