Nortel Networks 2700 manual cable pinouts

Appendix A Technical specifications 97

You need a DSU/CSU (digital service unit/channel service unit) between the WAN connection and the gateway. You can order a V.35 or X.21 cable to attach to the connector. With this cable, the WAN adapter can function as DTE (data terminal equipment).

Table 32 provides the V.35 cable pinouts. Table 33 on page 98 provides the X.21 cable pinouts. (The pair suffix A or B refers to an individual wire within a twisted pair.)

Table 32 V.35 cable pinouts

Standard-wired		Pair number	Special-wired
end 28-pin male	Signal name	and conductor	end 34-pin male	Notes
2	TXDA	pair 1A	P
14	TXDB	pair 1B	S
3	RXDA	pair 2A	R
16	RXDB	pair 2B	T
15	TXCA	pair 3A	Y
12	TXCB	pair 3B	AA
17	RXCA	pair 4A	V
9	RXCB	pair 4B	X
24	SCTEA	pair 5A	U
11	SCTEB	pair 5B	W
4	RTSA	pair 6A	C
19	RTSB	pair 6B	no conn	Note 1
5	CTSA	pair 7A	D
13	CTSB	pair 7B	no conn	Note 1
6	DSRA	pair 8A	E
22	DSRB	pair 8B	J
20	DTRA	pair 9A	H
23	DTRB	pair 9B	no conn	Note 1
8	DCDA	pair 10A	F
10	DCDB	pair 10B	no conn	Note 1
18	LL	pair 11A	L
21	RL	pair 11B	N

Nortel VPN Router Installation — VPN Router 2700