H3C MSR 路由器主机 H3C MSR 系列路由器-可选光纤 OP-SC/PC-SC/PC-5-S 光连接器-双SC/PC-单模-5m OP-SC/PC-SC/PC-15-S 光连接器-双SC/PC-单模-15m OP-SC/PC-SC/PC-15-M 光连接器-双SC/PC-多模-15m OP-SC/PC-SC/PC-5-M 光连接器-双SC/PC-多模-5m