ADTRAN NxT1 HSSI/V.35 user manual Wiring, Usoc RJ-48C

Chapter 2. Installation

WIRING

Each module T1 port uses a single RJ-48C jack to connect to a T1 circuit. Table 2-1shows the T1 pinout connection. The required wiring connection follows:

Connector Type		(USOC) RJ-48C
			Table 2-1. T1 Pinout Connection
PIN	NAME		DESCRIPTION
1	R1 RXDATA		Receive data from the network ring
2	T1 RXDATA		Receive data from the network tip
3, 6, 7, 8	Unused		n/ a
4	R TXDATA		Send data towards the network ring
5	T TXDATA		Send data towards the network tip

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		50 pin SCSI-II Female
		Table 2-2. HSSI/V.35 (SCSI-50) Pinout
PIN (+ side)	PIN (- side)	DIRECTION	DESCRIPTION
1	26	—	HSSI SG - Signal Ground
2	27	O	HSSI RT - Receive Timing
3	28	O	HSSI CA - DCE Available
4	29	O	HSSI RD - Receive Data
5	30	O	HSSI LC - Loopback Circuit C
6	31	O	HSSI ST - Send Timing
7	32	—	HSSI SG - Signal Ground
8	33	I	HSSI TA - DTE Available
9	34	I	HSSI TT - Terminal Timing
10	35	I	HSSI LA - Loopback Circuit A
11	36	I	HSSI SD - Send Data
12	37	I	HSSI LB - Loopback Circuit B
13	38	—	HSSI SG - Signal Ground

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