Nortel Networks 1750 Manual Do Utilizador

54 Chapter 3 Option card and DIMM installation

NN46110-316 03.01

If you install an SSL VPN Module 1000 in the VPN Router 1750, the following 
restrictions on other option cards apply:

•

You cannot install a V.90 modem interface card in slot 2.

•

You can install only one HSSI WAN interface card. Do not install this card in 
slot 4; if possible, install it in slot 3.

•

You can install two 1000BASE-T/1000BASE-SX interface cards only if you 
do not install one of the following option cards:

— VPN Router Security Accelerator 

— Hardware Accelerator

— HSSI WAN interface

If you install a VPN Router Security Accelerator, Hardware Accelerator, or 
HSSI WAN interface card, you can install only one 1000BASE-T or 
1000BASE-SX interface card.

V.90 modem interface

4

If you install an SSL VPN Module 1000 in slot 1, do 
not install the V.90 modem interface card in slot 2. 
The VPN Router 1750 must run Version 4.80 or 
later.

Single V.35/X.21 WAN interface 
(full-height)

4

—

Single V.35/X.21 WAN interface 
(half-height)

4

The VPN Router 1750 must run Version 4.80 or 
later.

HSSI WAN interface

2

Do not install in slot 4; install in slot 3 or 1 if possible. 
If you install an SSL VPN Module 1000, you can 
install only one HSSI WAN interface card.The 
gateway must run Version 4.76 or later, or the 
hardware revision must be at least 03.

Table 16   Supported option cards for the Nortel VPN Router 1750