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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
Chapter 1 Overview and Physical Description
Rack-Mounting Considerations
Cisco ASR 9912 Router—Three AC power trays in AC-powered systems or three DC power
trays in DC-powered systems
Note The line card slots are dedicated to only line cards; RSP/RP/FC cards cannot occupy these slots. The
RSP/RP/FC slots are dedicated to only RSP/RP/FC cards; line cards cannot occupy these slots. A keying
mechanism keeps line cards from entering RSP/RP/FC slots and RSP/RP/FC cards from entering line
card slots; the keying mechanism pins engage before the card alignment pins engage.
Fiber and Interface Cable Management
Figure 1-13 shows how card interface cables are managed at the front of the Cisco ASR 9010 Router chassis
using a cable management tray.
Figure 1-13 Cable Management Tray
The cable management tray is located above the card cage (the Cisco ASR 9922 Router and
Cisco ASR 9912 Router have an additional cable management tray below the bottom card cage) and does
not interfere with the insertion or removal of cards. A hinged cover at the top of the tray can be raised
for ease of access for routing cables.
Line cards and RSP/RP cards share the same cable management tray. Cables to a card must be
disconnected before its removal (this does not affect adjacent cards). Removal of a line card or RSP/RP
card does not require removal or adjustment of cables other than those associated with the card itself.
A cable management bend radius of 1.5 inches (3.81 cm) is accommodated. Line card slots at the
extreme ends of the cable management trays use space outside of the chassis width to accommodate the
1.5-inch (3.81-cm) radii due to limited space per slot.
Space for the fiber bend radii and strain relief is 3.75 inches (9.53 cm) in front of the faceplate.
Figure 1-14 shows how the fiber and cables are routed upward away from slot number labels. Therefore slot
number labels, located at the lower part of the card cage, are not obscured by the cables.
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