The card provides 60 Gbps of nonblocking high-order switch capacity 1152 x 1152 STS-1s or 384 x 384 VC-4s unidirectional ports and 5 Gbps of low-order switch capacity 2688 x 2688 VT1.5/VC-11 or 2016 x 2016 VT-2/VC-12 unidirectional ports. The XC-VXC card is installed in slots 8 and 10 as identified by the green cross (+) icon at the bottom of the faceplate and below the shelf slot. The platform's eight multiservice card slots (1 to 4 and 14 to 17) receive 2.5 Gbps of capacity and the high-speed card slots (5 6 12 13) receive 10 Gbps of capacity. The timing communications and control (TCC) card works with the XC-VXC card to provision set up circuits and maintain connections within the system. The XC-VXC card provides in-service upgrade capabilities given shelf assembly support from other cross-connect cards including the XC XC-VT XC-10G XC-VXL-2.5G and XC-VXL-10G.