Rackmount Data Unit Installation (Nt4X25Ad /Ch /Av /Df); Installing The Nt4X25Dh Shelf - Northern Telecom DMS-100 Series Installation And Maintenance Manual
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RACKMOUNT DATA UNIT INSTALLATION (NT4X25AD /CH /AV /DF)
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To install rackmount DUs, the following equipment is required:
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an installed equipment frame (rack)
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data unit shelf (NT4X25BH or NT4X25DH)
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power supply (NT4X2554, NT4X25DK, or NT4X25DL)
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an NT4X2591 mounting hardware kit
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data lines
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minimum
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requirements) maximum 16 per shelf
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DTE interface cables (AO300753 - must be
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for NT4X25AV DU)
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Note
- NT4X25BH shelf and its associated power supply, NT4X2554,
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are manufacture
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these items can be obtained from NTP 297-2121-226, issue 04.01.
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Installing the NT4X25DH shelf
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The
backplane
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4-10.
The shelf is shipped with a metal cover plate on the back-
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plane to protect the terminal cover
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during transit. Remove the plate before installing the shelf.
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The
shelf
is
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circuit-card slots, where and when provisioned.
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card is removed only at the time of card installations.
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To install the AC powered shelf in a computer room:
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1.
Mount
the
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The shelf is a standard 44.8 cm width.
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than 48.36 cm, use P0686254 adapter brackets, included in the
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NT4X2591 mounting hardware kit, to extend the
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shelf as necessary.
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2.
Connect the frame ground to the copper ground lug labeled GND
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on the shelf backplane. See Figure 4.5 on page 4-10.
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3.
Ensure that the power switch on the faceplate of the NT4X25DK
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power
supply
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in the left side of the shelf.
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step, ensure that the power supply retaining
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at the bottom front of the power supply, is tightened.
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WARNING:
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least one data unit installed in the shelf.
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of
one
rackmount
discontinued.
of the shelf is illustrated in Figure 4.5 on page
shipped
with blank faceplates covering all empty
shelf
in
the frame (rack) using machine screws.
is switched OFF, then install the power supply
Do
not
turn on the power supply until there is at
DU (to meet power supply loading
ordered
Installation
instructions
strips
and
A faceplate
If the frame is wider
Before proceeding to the next
297-2121-226
VINTAGE 05.01
separately
for
DTE
connectors
per
width
of
the
screw,
located
Turning on
the
4-9
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