Cisco CRS-1 - Manual (Page 17)

1-9
Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Site Planning Guide
OL-5802-09
Chapter 1 Cisco CRS Carrier Routing System
The Cisco CRS 8-Slot Line Card Chassis
DC PEM and AC rectifier contains a removable air filter, located on the back of the module. The
modular configuration power solution contains two power shelves with either up to four DC power
modules (PMs) or up to three AC PMs per power shelf.
The PLIM side of the chassis is considered the front of the chassis, where user data cables attach to the
PLIMs and cool air enters the chassis. The MSC side, which is where warm air is exhausted, is
considered the rear of the chassis.
Chassis Slot Numbers
This section identifies the location and slot numbers for major cards and modules (primarily the
field-replaceable units) that plug into the chassis.
Figure 1-6 shows the slot numbers on the front (PLIM) side of the Cisco CRS 8-slot line card chassis.
Figure 1-6 Cisco CRS 8-Slot Line Card Chassis Slot Numbers—Front (PLIM) Side
As shown, the front (PLIM) side of the chassis has the following card slots:
• Eight PLIM slots (left to right: 0, 1, 2, 3...4, 5, 6, 7)
• Two route processor card slots (RP0 and RP1)
0 1 2 3 RP 0 RP 1 4 5 6 7
122778
Power A Power B