Nortel Networks 2700 ユーザーズマニュアル
Appendix A Technical specifications 91
Nortel VPN Router Installation — VPN Router 2700
ISDN BRI interface card
The ISDN BRI S/T and ISDN BRI U interface cards have a single RJ-45
connector that provides the signals needed to interface to ISDN equipment. (To
connect the ISDN S/T interface to the ISDN network, you must attach an external
NT-1 device to the RJ-45 connector.)
connector that provides the signals needed to interface to ISDN equipment. (To
connect the ISDN S/T interface to the ISDN network, you must attach an external
NT-1 device to the RJ-45 connector.)
shows the ISDN BRI S/T interface card or the ISDN BRI U interface
card. Both interface cards look the same.
Figure 38
ISDN BRI S/T interface card or ISDN BRI U interface card
The connector on the ISDN BRI S/T and ISDN BRI U interface cards
accommodates an 8-pin RJ-45 modular patch cord. These cables are sold as
Category 5, or Ethernet, cables.
accommodates an 8-pin RJ-45 modular patch cord. These cables are sold as
Category 5, or Ethernet, cables.
provides the ISDN BRI S/T cable pinouts.
Note: Nortel does not supply a cable with the ISDN BRI interface cards.
Table 27
ISDN BRI S/T cable pinouts
Pin
Function
1
N/C
2
N/C
3
Receive +
4
Transmit +
5
Transmit -
6
Receive -
7
N/C
8
N/C
ISND ST