1-1
7900-A2-GB20-00
March 1998
About the Hotwire Model 7900
Basic Maintenance Processor
1
What is the MTU-M
The Hotwire
t
Model 7900 Basic Maintenance Processor (MTU-M) card is a
processor circuit card assembly (CCA) that mounts into a Hotwire Model 7900
Nest. It is used to monitor the status of the Hotwire Digital Subscriber Line (DSL)
cards and Hotwire Remote Termination Units (RTUs) from either of the following:
H
A Network Management System using Simple Network Management
Protocol (SNMP) through the Ethernet port located on the Model 7900 Nest
back panel
H
A local asynchronous terminal through the MTU-M’s VT100 serial port
located on the MTU-M front panel
The MTU-M is installed in Slot 1 of the Hotwire Model 7900 Nest and monitors
the performance and status of the following models of nest card termination units
and their associated remote termination units:
Model Number
Description
7914-B1-xxx
SDSL T1 DSX-1
7915-B1-xxx
SDSL E1 G.703
7924-B1-xxx
HDSL T1 DSX-1
7925-B1-xxx
HDSL E1 G.703
The Hotwire Model 7900 19-inch nest holds up to 16 nest-mounted termination
units (15 with the MTU-M installed). A standard 19-inch by 72-inch equipment
rack can house four nests for a total of 64 nest cards.
MTU-M
POWER
FAIL
NMS LINK
MODEMS
ALARMS
MAJOR
MINOR
ABNML
ACO
ACTIVE
97-15665
C
O
N
S
O
L
E
RESET
Summary of Contents for HOTWIRE 7900
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