Chapter 2. Installation61200771L1-1 NxT1 HSSI/V.35 User Manual 25WIRINGEach module T1 port uses a single RJ-48C jack to connect to a T1 circuit.Table 2-1 shows the T1 pinout connection. The required wiring connectionfollows:The HSSI/V.35 interface uses a single SCSI-II 50 pin connector with an op-tional V.35 adapter cable. Table 2-2 shows the SCSI-II connector pinout.Connector Type (USOC) RJ-48CTable 2-1. T1 Pinout ConnectionPIN NAME DESCRIPTION1 R1 RXDATA Receive data from the network ring2 T1 RXDATA Receive data from the network tip3, 6, 7, 8 Unused n/ a4 R TXDATA Send data towards the network ring5 T TXDATA Send data towards the network tipConnector Type 50 pin SCSI-II FemaleTable 2-2. HSSI/V.35 (SCSI-50) PinoutPIN (+ side) PIN (- side) DIRECTION DESCRIPTION1 26 — HSSI SG - Signal Ground2 27 O HSSI RT - Receive Timing3 28 O HSSI CA - DCE Available4 29 O HSSI RD - Receive Data5 30 O HSSI LC - Loopback Circuit C6 31 O HSSI ST - Send Timing7 32 — HSSI SG - Signal Ground8 33 I HSSI TA - DTE Available9 34 I HSSI TT - Terminal Timing10 35 I HSSI LA - Loopback Circuit A11 36 I HSSI SD - Send Data12 37 I HSSI LB - Loopback Circuit B13 38 — HSSI SG - Signal Ground