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Figure 1
Front and Rear Chassis Views
11
1
2
3
4
1
Internal fans
2
Clock card
3
Fan tray handle
4
Captive installation screws (line cards)
5
Cable interface line cards
6
Port adapters
7
I/O controller
8
Console port
1. AC power supplies are shown in this illustration. DC power supplies are also available.
Card Slot and Logical Interface Numbering
Port adapter and cable interface line card slots maintain the same slot number regardless of whether other port adapters or
cable interface line cards are installed or removed. However, when you move a port adapter or a line card to a different slot,
the logical interface number changes to reflect the new slot number.
Figure 2
Slot Numbers and Locations
Port adapter slot 0
(I/O controller)
Clock card
4
10
9
8
uBR - MC28U
uBR - MC28U
uBR - MC28U
uBR - MC28U
Port adapter slot 1
(blank)
SEC
LOS
ACTIVE
FREERUN
FAULT
ER
7
6
5
9
Auxiliary port
10 Optional Fast Ethernet port (M11 and RJ-45 receptacles)
11 PCMCIA slots
1
12 AC plug
13 Power switch
14 Power supply handle
15 AC-input power supply
16 Network processing engine (NPE)
Port adapter
slot 2
Slot 3
uBR - MC28U
uBR - MC28U
Slot 4
uBR - MC28U
Slot 5
uBR - MC28U
Slot 6
14
12
13
16
15