Nortel Networks 2700 用户手册
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Appendix A Technical specifications
NN46110-311 02.01
V.90 modem interface card
The V.90 modem interface card has two RJ-11 connectors that provide the signals
needed to interface to an incoming telephone line and to telephone equipment.
needed to interface to an incoming telephone line and to telephone equipment.
shows the V.90 modem interface card.
Figure 42
V.90 modem interface card
Included in the accessory box is a 7-foot RJ-11 cable to attach to a telephone jack.
provides the V.90 modem port cable pinouts.
Single V.35/X.21 WAN interface card
The single V.35/X.21 WAN interface card has a single DB28S connector that
provides the signals needed to interface to V.35 and X.21 equipment.
provides the signals needed to interface to V.35 and X.21 equipment.
shows the single V.35/X.21 WAN interface card.
Figure 43
Single V.35/X.21 WAN interface card
Table 31
V.90 modem cable pinouts
Pin
Function
1
N/C
2
Tip
3
Ring
4
N/C
PHONE
LINE
CS160011A