ADTRAN Total Access 351 Manual page 2

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A telephony/data communication test set
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PON power meter with wavelength filtering
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Fiberscope or videoscope
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Two #10 screws and appropriate surface anchors for
mounting the SFU ONT
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Assorted tie wraps for securing cabling and wiring
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One RJ-45 plug
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Two RJ-11 plugs (when not using two-screw terminal bridges)
For fiber optic connections, the following are required:
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Fiber splicing tools
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Fiber cleaning materials
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SC/APC fiber connector (Green)
Included with the SFU ONT packaging are 2 two-screw terminal
bridges, fiber cable management and strain relief, a fiber
connector, and electronics/optics. For data, the connection to the
SFU is through the RJ-45 Ethernet connector. For POTS, the
connection is made through two-screw terminal bridges, or RJ-11
connections.
Mount the Enclosure
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CAUTION
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This equipment must be connected to a known, reliable earth
ground at all times during installation and service. Refer to the
National Electrical Code (NEC) and state/local codes for
details on grounding requirements. A 12 AWG copper ground
conductor shall be used to connect the equipment to earth
ground.
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This equipment must be serviced by authorized service
personnel only. All repair procedures are detailed to allow
sub-assembly level repairs ONLY. Authorized service
personnel should not attempt component level repairs or
circuit modifications to the printed circuit board. Improper
repairs can create a safety hazard.
Complete the following steps to mount the enclosure:
1. Choose a vertical surface near an approved ground, but
away from down spouts, permanent water sprinklers, or
other water sources. The subscriber should have easy access
for testing.
2. Use the top and bottom external mounting holes as a
template to mark fastener locations. Use a level to ensure the
unit is level to prevent warping.
3. Pre-drill the marked locations and install fasteners or
anchors appropriate to the mounting surface (each anchor
rated to 15 lbs minimum).
4. Mount the SFU ONT to the side of the subscriber's premise.
The Electronics Module is installed in the housing and swings
open on hinges. To release this module, loosen the Security Screw
(refer to the illustration on the first page) and swing the
electronics Module to the left.
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CAUTION
Do not use a knife to cut the opening in the rubber grommets.
This may result in an excessively large hole and compromise the
integrity of the unit allowing moisture into the unit.
Ground Connection
Install the ground connection (see illustration below by
completing the following steps:
1. Remove the rubber grommet from the housing and insert a
#6 solid copper ground wire through the rubber grommet.
2. Using the figure on top of page 3, route the ground wire as
shown and attach it to the ground bar.
3. Replace the rubber grommet in the housing.
4. Route the ground wire 12 inches below finished grade by
the shortest and most direct route to the AC power ground
system Multi Grounded Neutral (MGN) of the customer
premises. Ensure the wire is free of any sharp bends.
5. Attach the ground wire to the side of the subscriber's
premises with stainless steel half moon clamps or tie-wrap
the ground wire to the riser conduit of the Buried Fiber
Drop.
6. Clean the MGN connector with emery cloth to insure a
stable connection.
7. Attach the ground wire from the SFU ONT to the MGN
connector with the appropriate UL approved ground
clamp/fitting.
8. Coat the connection with a metal corrosion preventative.
9. Attach a Warning Ground Tag to this grounding connection.
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Power/Alarm Connections
NOTE
Wiring the Power/Alarm connector improperly could damage
the SFU.
The SFU ONT is supplied with a 7-conductor Euro-style Power/
Alarm connector. To make connections from the UPS to the
power connector complete the following steps:
1. Remove the Power/Alarm Connector by pulling it out of the
electronics module.
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61287701G1-22A