Chapter 2 Bpx Switch Physical Overview; Bpx Switch Enclosure - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

BPX Switch Physical Overview
This chapter describes the physical components of the BPX switch:
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The BPX switch is supplied as a stand-alone assembly. It may be utilized as a stand-alone ATM switch,
or it may be integrated at customer sites with one or more multiband IGX switches, MGX 8220 or MGX
8800 shelves, SES PNNI shelves and other access devices to provide network access to broadband
backbone network links for narrowband traffic. Cisco and CPE service interface equipment can also be
co-located with the BPX switch and connect to its ATM service interfaces.

BPX Switch Enclosure

The BPX switch enclosure is a self-contained chassis which may be rack mounted in any standard
19-inch rack or enclosure with adequate ventilation. It contains a single shelf that provides fifteen slots
for vertically mounting the BPX switch cards front and rear.
At the front of the enclosure (see Figure 2-1) are 15 slots for mounting the BPX switch front cards. Once
inserted, the cards are locked in place by the air intake grille at the bottom of the enclosure.
To remove or insert cards, a mechanical latch on the air intake grille must be released by using a
screwdriver and the grille must be tilted forward in order.
At the rear of the enclosure (illustrated in Figure 2-2) is another series of card slots for mounting the
rear plug-in cards. These are held in place with two thumbscrews, top and bottom. A mid-plane, located
between the two sets of plug-in cards, is used for interconnect and is visible only when the cards are
removed.
To provide proper cooling, it is essential that blank faceplates be installed in all unused
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slots. Failure to do so will degrade node cooling and circuit card damage will result.
The blank faceplates also provide RFI shielding.
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
BPX Switch Enclosure
Card Shelf Configuration
BPX Switch Major Hardware Component Groups
Service Expansion Shelf PNNI
Optional Peripherals
C H A P T E R
Cisco BPX 8600 Series Installation and Configuration
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