vii
4
M
O
N
I
T
O
R
I
N
G
E
D
G
E
R
O
U
T
E
R
M
O
D
U
L
E
O
P
E
R
A
T
I
O
N
Monitoring Edge Router Module Operation
4-1
Showing Module Configuration and Status
4-3
Using the SHOW MODULE Command
4-4
Using the SHOW PORT Command
4-6
5
T
R
O
U
B
L
E
S
H
O
O
T
I
N
G
Troubleshooting Startup Problems
5-2
Troubleshooting Router-Specific Problems
5-2
Troubleshooting Mailbox Interface Problems
5-2
Troubleshooting 3Com Carrier Problems
5-2
Troubleshooting Network Connectivity Problems
5-3
Troubleshooting WAN Connectivity Problems
5-4
Correcting Operating Malfunctions
5-5
A
S
P
E
C
I
F
I
C
A
T
I
O
N
S
General Specifications
A-2
Electrical Specifications
A-2
Environmental Specifications
A-3
Mechanical Specifications
A-3
Hub Capacities
A-4
ONline Hub Capacities
A-4
ONcore Hub Capacities
A-4
Cable Pinouts
A-5
Console Port Pinouts
A-6
DTE Console Port
A-6
Mini-DIN to DB-25 Modem Cable
A-7
Auxiliary Port Pinouts
A-8
Mini-DIN to DB-25 Modem Cable
A-8
DB-25 Null Modem Cable
A-9
Serial Port Pinouts
A-9
EIA-530 DTE Synchronous Serial Cable Pinouts
A-10
RS-232 DTE and DCE Serial Cable Pinouts
A-11
RS-449 DTE and DCE Serial Cable Pinouts
A-12
V.35 DTE and DCE Serial Cable Pinouts
A-13
X.21 DTE and DCE Serial Cable Pinouts
A-14
