Nortel Networks BCM1000 - Manual (Page 70)

70 Chapter 1 Introducing the Business Communications Manager
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Computer components
The BCM1000 computing functions are supported by the following hardware:
• memory: 256 MB SDRAM; 128 MB SDRAM added for 2.0 upgrades.
• hard disk: 20 GB hard disk(2.5 hardware); 8.4 GB hard disk (2.0 hardware)
• four PCI slots containing one MSC and four possible combinations of WAN, LAN, and/or
modem cards
• four PEC slots on the MSC, each of which can contain one Processor expansion card (PEC) I
or PEC III (2.5) (basic 2.5 systems are delivered with two PEC III cards)
Hardware components
The main component of the Business Communications Manager system is the BCM1000. This
hardware controls all data and telephony tasks, such as call processing, voice messaging, and data
routing.
Figure 15 shows the functional hardware as seen from the front of the BCM1000.
Figure 15 External functional hardware, BCM1000
Note: Some of the components described in this document are not available in all
countries. Ask your Business Communications Manager sales agent for information about
availability.
Modem card LAN card WAN card MSC
Media bay modules
This is an example of one of four possible profiles
RAID board
(Mirrored disk systems)