Nortel Networks BCM200/400 - Manual (Page 51)

Chapter 2 Introducing the BCM hardware 51
BCM200/400 4.0 Installation and Maintenance Guide
Figure 20 I/O interface card connectors
BCM expansion unit (BCM400 only)
In addition to a main unit, the BCM400 system can have one expansion unit. The expansion unit is
not compatible with the BCM200 system. The BCM expansion unit contains six additional bays
for MBMs.
The supplied DS256 cable is 5 m (16 ft.) long and connects into a DS256 port on the MSC of the
main unit, and into a DS256 port on the center panel of the expansion unit (see
Figure 21 ). Use of
any other cable is not supported. See “Installing an expansion unit” on page 103 for more
information on installing a expansion unit.
Note: The number of MBMs that you can install is determined by the number of DS30
buses required by the MBMs and the number of buses available.
Refer to
Chapter 8, “Installing a media bay module (MBM),” on page 107 .
20-pin power
supply connector
PSU status - RPS output
signalling connector
Base function
tray connector
Fan 1 connector
Fan 2 connector
I/O Card
Primary IDE
controller (IDE0)
BCM200 MSC guide bracket
PSU AUX connector
Secondary IDE
controller (IDE1)