Cable Management - Cisco CRS-1 System Description

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Overview
Figure 5: Line Card Chassis Enhanced Router Slot Numbers Rear (MSC) Side
As shown, the slot numbers on the MSC side of the chassis include:
• Fan tray 0 and fan tray 1
• Card cage, including:
• Power shelf B and Power shelf A
The MSC slot numbers are reversed from the PLIM slot numbers on the other side of the chassis. Because an
MSC mates with its associated PLIM through the midplane, MSC slot 0 is on the far right side of the chassis
looking at it from the rear (MSC) side.
PLIM slot 0 is on the far left side of the chassis, looking at if from the front (PLIM) side. MSC slot 0 and
PLIM slot 0 mate with each other through the midplane, and so do all other MSC and PLIM slots (0 through
7).

Cable Management

The Cisco CRS 8-slot Line Card Chassis Enhanced router has cable management features for the front (PLIM)
side of the chassis, just above the card cage. The horizontal cable management tray has a special telescoping
feature that allows it to be extended when the chassis is upgraded with higher-density cards. This extension
also helps when installing the cables in the chassis. If the door is installed, do not leave the fiber management
brackets extended, as they will hit the door.
Figure 6: Cable Management Bracket
• Eight MSC slots (0, 1, 2, 3, 4, 5, 6, 7)
• Four half-height switch fabric card slots (SM0, SM1, SM2, and SM3)
Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description
shows the cable management bracket.
Cable Management
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