The Cisco 6110 expands the line capability of the Cisco 6100 and supports up to 20 line interface modules (LIMs). Each LIM can support four subscriber lines for a total of 80 subscriber lines per chassis. Electronically, the Cisco 6100 with NI-1 system can support up to five Cisco 6110 chassis, for a total of 400 lines. Data is routed into the Cisco 6110 through two 68-pin connectors (J25 and J26). Data is routed out of the Cisco 6110 through two 68-pin connectors (J27 and J28). Each successive Cisco 6110 is cabled to the previous Cisco 6110 in a chained fashion using the 68-pin connectors.