Nortel BCM 3.7, Manual

Page: 891 / 1004

B 891
Programming Operations Guide
base station
This device is part of the wireless/portable handset systems that can be used with the
Business Communications Manager. It contains radio equipment that receives and sends
signals to a cordless handset used within a specific radius of the base station. The base
station connects to a media bay module installed in your Business Communications
Manager System.
Basic Input Output System (BIOS)
A program contained in Read Only Memory (ROM) that acts as the interface between
software programs and the computer hardware.
baud rate
A unit of measurement of data transmission speed through a media channel, such as a
modem. Baud rate is approximately equivalent to Bits Per Second (BPS).
BCM400/BCM200
The BCM400 base unit was developed to replace the BCM1000 base unit. The BCM400
can support four media bay modules as well as the remote cabinet. It can be ordered as a
standard system, or with redundant power supply, fans, and a mirrored (RAID) disk
system. The BCM200 supports two media bay modules, and is a stand-alone unit. These
hardware platforms were introduced in conjunction with Business Communications
Manager release 3.0. Only the BCM1000 supports earlier versions of the Business
Communications Software.
bearer channel
See B-channel.
bit
An abbreviation for Binary Digit. A bit is the smallest unit of information identified by the
computer. A bit has one of two values, 0 or 1, to indicate off or on.
bit error rate test
A test that checks the transmission of data across the voice and data channels between the
system and any telephone.
BLF
The Busy Lamp Field (BLF) is the display field beside the buttons on the telephones that
display an arrow indicator when the button is in use.
BPS (Bits Per Second)
The speed of data transmission between two computers.
break-in
If you attempt to forward a call to another telephone, and that telephone is busy, you can
use this feature to attempt to interrupt the call. Intrusion levels are assigned to each
telephone, which means this feature will not work if the telephone receiving the