Base Function Tray Internal Components - Nortel BCM200 Installation And Maintenance Manual

40 Chapter 2 Introducing the BCM hardware
Table 5 Base function tray faceplate component descriptions
Component
System Status LEDs
Reset button
WAN card
Media services card (MSC)
USB (universal serial bus)
port
Modem port
COM port (or serial port)
Ethernet port 2
Ethernet port 1

Base function tray internal components

The base function tray installs in the main unit and houses the main card with the system
interfaces.
Figure 9 illustrates the base function tray layout (BCM200 configuration shown).
describes the internal components.
Figure 9 Base function tray internal components
System Status LEDs
N0060612 N0060612
Description
The system status display LEDs indicate the current status of the hardware
components (see "Base function tray system status display LEDs" on page
The reset button restarts the BCM system.
The WAN card (field upgrade) connects the BCM system to the wide area network
(WAN). See "WAN interface card" on page
The MSC performs call processing and media processing of the voice channels for
the BCM system. See "Media services card (MSC)" on page
The two USB ports connect USB-compatible peripherals to the BCM system.
The modem port provides PSTN dial-up access to the BCM system.
The COM port provides a serial connection to a laptop for maintenance purposes.
See "Connecting through the serial port" on page
Ethernet port 2 provides access to the internal local area network.
Ethernet port 1 provides access to the external local area network.
DS256 interface
46.
181.
PEC III
slots
MSC
77).
41.
Table 6
MSC mounting
screws