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•
a Main Processing Unit (MPU) that includes 8 MB Flash memory and
SDRAM of 32 MB and provides following functions such as:
—
initializing and controlling other devices such as FPGA and
QuadFALC PCM interface
—
interacting with the Web over an Ethernet connection
—
interacting with system software
—
providing the interface to Synchronous Static and Dynamic RAM
—
running applications such as E1/T1 alarms and applications, clock
reference functionality, Web interface
•
digital Phase Locked Loop (PLL) for synchronizing on an external clock
•
compact flash that provides mass storage for software, Web pages,
configuration data and reports
•
one 10/100BaseT network interface port connected to the faceplate
that provides onboard connections to the ELAN subnet
•
33 LEDs on the faceplate to display diagnostic information
•
onboard capability for DPNSS/DASS D-channels used to mount
downloadable D-channel daughterboards (NTBK50AA emulation)
•
I/O access:
—
CardLAN interface
—
RS-232 interface for initial card installation
•
FPGA circuit that handles:
—
time slot conversion
—
digital padding
—
communication interface with the MGC for system messaging
—
clock reference functionality that interfaces with the CE-MUX
bus for clock controller commands (simulates a clock controller
daughterboard)
—
switching voice paths
—
switching D-channels between D-channel daughterboards and
QuadFALC interfaces
—
a register-based interface to the faceplate LED display
—
D-channel TR/RR handshake
The E1/T1 card features:
Nortel Communication Server 1000
Media Gateway 1000E PRI Gateway Installation and Commissioning
NN43041-311 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
E1/T1 card 37
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