ADTRAN Total Access 351 Series Quick Start Manual page 2

Required Tools and Supplies
Standard technician tools and those listed below are required for
installing the SFU ONT:
♦
Carpenter's level
♦
3/32" screw driver for connecting SFU ONT power
♦
5/32" hex tamper proof bit
♦
RJ‐45/RJ‐11 crimper
♦
A telephony/data communication test set
♦
PON power meter with wavelength filtering
♦
Fiberscope or videoscope
♦
Two #10 screws and appropriate surface anchors for mounting the
SFU ONT
♦
Assorted tie wraps for securing cabling and wiring
♦
RJ‐45 plugs: one for the 1187701G1 and two for the 1187702G1
♦
Two RJ‐11 plugs (when not using two‐screw terminal bridges)
For fiber optic connections, the following are required:
♦
Fiber splicing tools
♦
Fiber cleaning materials
♦
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 connectors. For POTS, the connection is made through two‐
screw terminal bridges, or RJ‐11 connections.
Mount the Enclosure
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.
!
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 above right) 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
2
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.
1
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 Euro‐Connector by pulling it out of the electronics
module.
Back of Electronics Module
7 6 5 4 3 2 1
2. Refer to the illustration at the top of the next column and "Local
Power Source Wiring" section to assist in completing the next steps.
3. Remove the rubber grommet from the housing and insert the power
and ground cable through the grommet.
4. To terminate the two UPS power leads (Pins 6 and 7) and, if needed,
the five alarm status leads in the power connector, cut all wires and
strip back the insulation. Use a flat head screwdriver (or similar
device) and loosen all the screws on the Power Alarm Connector.
Insert one wire at a time and tighten the screws to make an electrical
contact.
5. Reconnect the Euro‐Connector to the bottom of the Electronics
Module.
6. Tie Wrap the wires through the holes just below the Euro‐style
connector.
7. Replace the rubber grommet while closing the Electronics Module.
This places less stress on the wiring and allows the Electronics
Module to close without pinching any wiring.
2 3
7 6 5 4 3 2 1
Euro-Connector
6418770XGX-22B