Nortel Networks 2750 User Manual

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  Chapter 4  Installing option cards and DIMMs
NN46110-318 02.01
Installing and replacing option cards
The VPN Router 2750 has four slots for option cards (
). This 
section provides instructions about adding new option cards to the gateway or, if 
necessary, replacing an existing card. 
 lists the option cards that you can 
install in the VPN Router 2750.
Table 16   
Supported option cards for the Nortel VPN Router 2750 2750
Option card
Maximum 
number
Restrictions
SSL VPN Module 1000
1
1
Install this card in slot 1 only.
VPN Router 2750 Security Accelerator
2
1
10/100BASE-TX Ethernet interface
4
1000BASE-T (1000 GT) Ethernet 
interface
3
4
1000BASE-T (1000 MT) interface 
(copper)
4
2
Install two 1000BASE-T (1000 MT) (1000 MT) 
cards, two 1000BASE-SX cards, or one card of 
each type. (But see 
1000BASE-SX interface (fiber)
5
56/64K channel service unit/digital 
service unit 
(
CSU/DSU) WAN interface
6
4
Asymmetric digital subscriber line
 
(
ADSL) WAN interface
7
4
Integrated Services Digital Network 
(ISDN) BRI S/T or U interface
8
4
T1 CSU/DSU WAN interface 
(full-height)
4
For E1 support, you must install the half-height 
interface card.
T1/E1 CSU/DSU WAN interface 
(half-height)
4
Quad T1/E1 CSU/DSU WAN interface
9
3
V.90 modem interface
10
4
If an SSL VPN Module 1000 is in slot 1, do not 
install the V.90 modem interface card in slot 2.
Single V.35/X.21 WAN interface 
(full-height)
4
Single V.35/X.21 WAN interface 
(half-height)
11
4
HSSI WAN interface
12
2
Do not install in slot 4; install in slot 3 or 1 if 
possible. If an SSL VPN Module 1000 is installed, 
you can install only one HSSI WAN interface card.