Nortel 2750, Руководство по установке

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68
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 ( Figure 22 on page 66 ). This
section provides instructions about adding new option cards to the gateway or, if
necessary, replacing an existing card.
Table 16 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 Table 17 on page 69 .)
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.