Cisco - Mode conditioning cable - SC multi-mode (M) to SC multi-mode/ SC single-mode (M) - 1 m - 9 / 50 /125 micron - IEEE 802.3z - for P/N: WS-G5486/S/ WS-G5486=OEM/ WS-G5486-A/ WS-G5486-ALT/ WS-G5486-C/ WS-G5486-RF=