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lapdid The term lapdid has its origins with the LAP-D protocol used for call
control, but has an extended meaning for Brooktrout products. For
call control for all protocols, trunk 1 = lapdid 0, trunk 2 = lapdid 2,
trunk 3 = lapdid 4 and trunk 4 = lapdid 6.
LEC Local Exchange Carrier
Line A T1/E1 slot or a single analog slot. Lines are numbered starting at
1.
Logical channel number A number used with the hardware module number to reference a
channel in a system. Channel 0 is reserved and channel 1 is the
administrative channel. Other channels are numbered from
2 to n+1 (where n is the number of work channels defined for the
module).
Millennium Address An address of a communicating Boston or Millennium entity such as
a facility and channel on a Boston module or the Boston device
driver. Each address consists of 4 components, the facility, the
channel, the module, and the machine. It is possible to make use of
most features of the firmware and the APIs without requiring direct
use of these addresses.
Module A communicating Boston entity that usually represents a CPU on a
Brooktrout board, a host application, or the Boston driver. See
section TBS for more information about modules and module
number assignment.
NVRAM Non-Volatile RAM. Random Access Memory that is not erased when
the board is powered off or when the firmware is downloaded again.
Ordinal channel number A number in the range 0 to n-1 where n is the total number of work
channels on all the boards in the system.
Packet In the Boston architecture, a sequence of bytes containing a Boston
destination address, source address, and one or more commands.
PCI Peripheral Component Interconnect
PDF Portable Document Format
Port A TDM bus (MVIP, H110, etc.) or a DS-1 interface (T1/E1).
RBS Robbed-Bit Signaling