Nortel 1100 Istruzione Sull'Installazione
Appendix A Technical specifications 199
Nortel VPN Router Installation — Hardware Options
Each connector on the quad T1/E1 CSU/DSU WAN interface card accommodates
an 8-pin RJ-48 modular patch cord. These cables are commonly sold as Category
5, or Ethernet, cables.
an 8-pin RJ-48 modular patch cord. These cables are commonly sold as Category
5, or Ethernet, cables.
Use cables you wired in accordance with EIA-568-A wiring style. This wiring
style ensures that a twisted pair inside the patch cord carries the transmit signal
(pins 4 and 5) and the receive signal (pins 1 and 2). Nortel strongly recommends
that you use professionally manufactured patch cords.
style ensures that a twisted pair inside the patch cord carries the transmit signal
(pins 4 and 5) and the receive signal (pins 1 and 2). Nortel strongly recommends
that you use professionally manufactured patch cords.
You connect the quad T1/E1 CSU/DSU WAN interface card to the service
provider network using a straight-through cable or a crossover cable, depending
on how the service provider wired its jack.
provider network using a straight-through cable or a crossover cable, depending
on how the service provider wired its jack.
•
For a straight-through connection, you can use a standard Category 5
(Ethernet) straight-through cable.
(Ethernet) straight-through cable.
•
For a crossover connection, you cannot use a standard Category 5 crossover
cable. You cannot interchange the T1/E1 CSU/DSU crossover cable and the
Ethernet crossover cable.
cable. You cannot interchange the T1/E1 CSU/DSU crossover cable and the
Ethernet crossover cable.
. For information about the cable pinouts for a straight-through
.
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 for VPN Routers
other than the VPN Router 1100.
Note: Nortel does not supply cables with the quad T1/E1 CSU/DSU
interface card.
interface card.