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MTU-M Installation Procedures
2-2
Procedure
To install the MTU-M:
NOTE:
A maximum of four Hotwire Model 7900 nests can be installed into one
standard 72-inch equipment rack. If more than one nest is installed in the
same equipment rack, install the MTU-M in slot 1 of the top nest. The nest
containing the MTU-M is referred to as the primary nest.
1. Remove the MTU-M from any protective packaging.
2. Align the circuit board with the top and bottom card guides of Slot 1.
OK
FAIL
SELECT
NETWORK
NEXT
LOS/AIS/BER
LOCAL
REMOTE
REMOTE
LOOP BK
ALARMS
MAJOR
SYSTEM
MINOR
POWER
ABNORM
FAIL
ACO
ACTIVE
SDSL
LOS / BER
LOOP
3. Slide the MTU-M into the slot until the backplane connector plug is seated
firmly into the backplane.
4. Tighten the retaining screws at the top and bottom of the MTU-M front panel.
March 1998
MTU-M Slot 1
MTU-M
POWER
FAIL
NMS LINK
MODEMS
ALARMS
MAJOR
MINOR
ABNML
ACO
ACTIVE
RESET
C
O
N
S
O
L
E
97-15598
7900-A2-GB20-00
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