user manual
v
C
O
N
T
E
N
T
S
A
B
O
U
T
T
H
I
S
G
U
I
D
E
Introduction 9
Audience 9
How to Use This Guide 9
Conventions 10
Related Documents 12
3Com Documents 12
Cisco Documents 13
Reference Documents 13
1
I
N
T
R
O
D
U
C
T
I
O
N
Product Overview 1-1
Edge Router Module Operation 1-1
Edge Router Module Architecture 1-3
Edge Router Module Features 1-5
Software Options 1-5
Topology Switching 1-7
Network Reliability 1-7
IOS Router Software Updates 1-8
Memory Upgrades 1-9
2
I
N
S
T
A
L
L
I
N
G
T
H
E
E
D
G
E
R
O
U
T
E
R
M
O
D
U
L
E
Installation Flowchart 2-2
Precautionary Procedures 2-3
Quick Installation 2-3
Quick Installation for Unmanaged Hubs 2-4
Quick Installation for Managed Hubs 2-5
Unpacking Procedures 2-6
Verifying Jumper Plug Positions 2-7