Rear Slot Numbering For Half-Height Line Cards - Cisco ASR 5000 series Installation And Administration Manual

▀ ASR 5000 Chassis Descriptions
Figure 3.
The following table shows the front slot numbers and their corresponding rear slot numbers.
Table 2. Front and Rear Slot Numbering Relationship
Position Slot Number
Front 16
32
Rear Top Slots
48
Rear Bottom
Slots

Rear Slot Numbering for Half-Height Line Cards

Rear-installed line cards must be installed directly behind their respective front-loaded application card. For example, an
application card in Slot 1 must have a corresponding line card in Slot 17. The redundant line card for this configuration
would be placed in Slot 33. This establishes a directly mapped communication path through the chassis midplane
between the application and line cards.
To help identify which rear slot corresponds with the front-loaded application card, note that the upper rear slot numbers
are equal to the slot number of the front-loaded card plus 16. For example, to insert a line card to support an application
card installed in slot 1, add 16 to the slot number of the front-loaded application card (Slot 1 + 16 slots = Slot 17). Slot
17 is the upper right-most slot on the rear of the chassis, directly behind Slot 1.
For lower rear slot numbers, add 32. Again, a redundant line card for an application card in Slot 1 would be (Slot 1 + 32
= Slot 33). Slot 33 is the lower right-most slot on the rear of the chassis, also behind Slot 1.
▄ Cisco ASR 5000 Series Aggregation Services Router Installation and Administration Guide
Rear Slot Numbering Scheme for Line Cards
15 14 13 12
31 30 29 28
47 46 45 44
11 10 9 8
27 26 25 24
43 42 41 40
ASR 5000 Hardware Platform Overview
7 6 5 4
23 22 21 20
39 38 37 36
3 2 1
19 18 17
35 34 33
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