The 1OC-48/STM-16 SRP line card has a pair of OC-48c, fiber-optic standard connector (SC) duplex ports that provide an SC connection for either the single-mode short-reach or single-mode long-reach version. Each 1OC-48/STM-16 SRP line card has a front panel D-type connector with 8 mini-coaxial connectors. It connects to a copper coaxial cable that mates two 1OC-48/STM-16 SRP line cards. For this reason, the copper coaxial cable is also referred to as a mate cable.