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ManualsBrandsSBE ManualsComputer HardwareHighWire HW400c/2
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HighWire MTP-2 - 1.2, September 4, 2002 HW400 Boards 25
3. Introduction to HighWire-MTP2
3-1. HW400 Boards
The HighWire family of communications boards includes the HW400c for host
systems with CompactPCI interfaces and the HW400p for hosts with PCI
interfaces.
Note: The HighWire 400c/R, 400c/F, and 400p also have “Plus” versions:
HW400c/R+, HW400c/F+, and HW400p+. The difference between the
regular and Plus versions is in the Motorola processor. The regular versions
use the Motorola MPC8240; the Plus versions use the faster 8245.
3-1-1. HW400c The HW400c is a CompactPCI (cPCI), single-slot board computer that allows a
cPCI system to communicate at T1/E1 rates with other types of systems. The
HW400c allows such communication to occur using SS7, transparent, or
HDLC protocols.
The HW400c/R and HW400c/F cards provide identical functionality, but differ
in the connectivity arrangement for the eight T1/E1 ports. For simplicity, both
boards are referred to together as HW400c.
Functional Components. Each product consists of an identical base board, but
other functional components vary as described in the sections below:
HW400c/R.
Base Board
Base BoardBase Board
Base Board - An intelligent board that provides protocol and application
processing on data communicated between the host and the network. Its
primary components are the MPC8240 microprocessor, GlobeSpan/T.Sqware
serial communication controller (SCC), and CSU/DSU functionality for eight
T1/E1/J1 ports. These ports are located on a separate Rear Transition
Module (RTM).
Mezzanine Board
Mezzanine BoardMezzanine Board
Mezzanine Board (or daughter card) - The HW400c/R Mezzanine Board
contains the CSU components and magnetics to manage space
considerations.
Rear Transition Module (RTM)
Rear Transition Module (RTM)Rear Transition Module (RTM)
Rear Transition Module (RTM) - The HW400c/R offers eight T1/E1/J1 ports
accessible through an RTM, which installs on the opposite side of the chassis
from the base board. The RTM also features development and debug ports.