Bcm400 Advanced Function Tray - Nortel BCM200 Installation And Maintenance Manual

Table 4 BCM400 main unit internal component descriptions (standard and RFO configurations)
Component
Front view
Removable cover
Power supply
Cooling fan
MBM backplane
Rack-mount bracket
Hard disk and RAID
Rear view
MBM backplane connector
Fan access panel
Fan exhausts
Power supply support bracket
mount

BCM400 advanced function tray

The advanced function tray houses the hard disk assembly and an extra, unpopulated bay. The
standard configuration contains a single hard disk and has no redundant array of independent disks
(RAID) LED display.
The advanced function tray in the RFO configuration contains two hard disks and a RAID
controller card, and has an LED display to monitor RAID status. The extra, unpopulated bay is
reserved for future development. The advanced function tray mounts in the upper BCM400 main
unit bay. The advanced function tray slides out and away from the front of the main unit for hard
disk maintenance, RAID upgrade, or exchange purposes.
Figure 6 illustrates the advanced function tray and faceplate interfaces for the BCM400 standard
and RFO configurations.
Description
The removable cover provides access to internal components.
Standard: The auto-sensing power supply (standard) provides power to the main unit
(see "BCM power supply" on page
RFO: The two redundant, hot-swappable power supply modules provide power to the
main unit (see "BCM power supply" on page
Standard: The system cooling fan forces warm air out of the main unit (see
fan" on page 69).
RFO: The two system cooling fans force warm air out of the main unit (see
fan" on page 69).
The MBM backplane provides the MBM component interface to the power supply and
main card (see "MBM bays and backplane" on page
The rack-mount bracket is required to install the main unit in an equipment rack.
The two hard disks and RAID controller card.
The MBM backplane connector connects to the MSC and power supply.
The fan access panel provides access to the fans for maintenance purposes.
The fan exhausts allow the fans to move warm air outside the main unit.
The power supply support bracket stabilizes the power supply when mounted in the
main unit.
Chapter 2 Introducing the BCM hardware
64).
64).
BCM200/400 4.0 Installation and Maintenance Guide
"Cooling
"Cooling
50).
37