Figure 2-3 Router-Rear View Showing Serial Port Unit Numbering - Cisco EF4116 Hardware Installation And Maintenance Manual

Preparing to Make Connections
If the Token Ring module in Figure 2-2 was replaced by a second Ethernet module, the unit
addresses would be as listed in Table 2-2.
Table 2-2
Slot No.
1
2
3
Figure 2-3 shows a chassis configured with three dual serial modules.
Figure 2-3
Serial 5
The unit numbering of these modules would be as listed in Table 2-3.
Table 2-3
Slot No.
1
2
3
If the router is configured with fewer than three network processor modules, you must place a slot
filler panel in the open slot to ensure proper airflow. Figure 2-4 shows a slot filler panel.
2-8 Cisco 4000 Series Hardware Installation and Maintenance
Unit Numbering Addresses for Dual Serial and Two Ethernet Modules
Interface Type
Serial Port (Top)
Serial Port (Bottom)
Ethernet
Ethernet
Router—Rear View Showing Serial Port Unit Numbering
Dual serial module
Slot 3
Serial 4 Serial 2
Unit Numbering Addresses for Three Dual Serial Modules
Interface Type
Serial Port (Top)
Serial Port (Bottom)
Serial Port (Top)
Serial Port (Bottom)
Serial Port (Top)
Serial Port (Bottom)
Unit Address No.
1
0
0
1
Dual serial module Dual serial module
Chassis
Slot 2
release screw
Serial 3 Serial 1
AUX
Auxiliary port
Serial 0
Unit Address No.
1
0
3
2
5
4
Slot 1
CONSOLE
INPUT 100-240VAC
Console port Power
50/60HZ 3.0-1.5 AMPS
On/off switch