Cisco SMFIR 4-155/B MGX-SMFIR-4-155/B Fiber Interface Back Card Module
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Cisco Systems SMFIR 4-155/B back card/module as shown. Unit is untested. Jumper wires have been added on the PCB, indicating a prior repair/modification. Bracket and board show normal handling wear and light marks; only the card/module is included.
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