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2

612877SBONT-22B

1. Align the slots on the reverse of the Electronics Module with the 

tabs on the Enclosure. 

2. Slide the Electronics Module on to the tabs and align the Screw Slot 

with the threaded hole in the back plate.

3. Secure the Electronics Module using the #6 screw provided 

(P/N 3276003003).

Connect Ground

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 by allowing moisture into the unit.

Refer to the illustration on the first page, the illustration below, and the 

following steps to connect the ground wire.

1. Remove the rubber grommet from the housing (Step 1).

2. Route a #6 ground wire through the rubber grommet (Step 2).
3. Trim the insulation back 1/2” on the ground wire and attach the 

appropriate ground lug.

4. Route the ground wire as shown and attach it to the ground lug just 

below the Electronics Module.

5. Replace the rubber grommet in the housing.
6. 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.

7. Attach the ground wire to the subscriber premise with stainless 

steel half moon clamps or tie-wrap the ground wire to the riser 

conduit of the Buried Fiber Drop. 

8. Clean the MGN connector with emery cloth to insure a stable 

connection.

9. Attach the ground wire from the ONT to the MGN connector with 

the appropriate UL approved ground clamp/fitting.

10. Coat the connection with a metal corrosion preventative.
11. Attach a Warning Ground Tag to this grounding connection.

Connect Power/Alarm

NOTE

Wiring the Power/Alarm connector improperly could damage the SBU.

The ONT is supplied with a 7-pin Power/Alarm connector. To make 

connections from the Uninterruptible Power Supply (UPS) to the Power/

Alarm connector, refer to the illustration on the first page, the illustration 

below, and Power/Alarm Connector Pin-Outs table below and complete 

the following steps:

1. Remove the Power/Alarm Connector by pulling it out of the Elec-

tronics Module. 

1

2

3

Use this example for all grommet and fiber/cable installations.

I

NSTALLATION

NOTE

Refer to the 

Total Access 300 Series SBU ONT Installation and Maintenance

Guide 

(P/N 612877SBONT-5) for complete information on installing these

units both with and without the NID Housing.

After unpacking the ONT, inspect it for damage. If damage is noted, file a 

claim with the carrier and then contact ADTRAN. For more information, 

refer to the warranty

Required Tools and Supplies

In addition to standard technician tools, you will need the following for 

this installation:

Carpenter’s level

3/32” screw driver for connecting 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

Three #10 screws and appropriate surface anchors for mounting the 
ONT

Assorted tie wraps for securing cabling and wiring

For fiber optic connections, you must have the following:

Fiber Optical Fusion Splice Tools

ODC Fiber cleaning tool

Included with the ONT packaging are fiber cable management and strain 

relief, a fiber connector, and electronics/optics.

Mount the Enclosure

Refer to the illustration at the top of the next column and complete the 

following steps to mount the enclosure:

1. Choose a vertical surface near an approved ground and away from 

any water source. The subscriber should have easy access for test-

ing.

2. Use the top and side external mounting holes as a template to mark 

fastener locations. Use a level to ensure the unit is level to prevent 

warping. For an indoor mount, prepare the mounting surface by 

attaching a 3/4 inch plywood board to the wall studs. This provides 

long-term stability for the ONT.

3. Pre-drill the marked locations and install fasteners or anchors 

appropriate to the mounting surface (each anchor rated to 18 lbs or 

8.2 kg minimum).

4. Mount the ONT.

Install the Electronics Module

To install the Electronics Module in the Enclosure, refer to the figure 

below and the procedure that follows.

Threaded Hole

Backplate

Tab

Tab

Surface Mounting Hole

Surface Mounting Holes
Left and Right Sides

Screw Slot

F

R

T

E

N

LOW

 B

AT

BAT

 M

IS

RE

BA

T

O

BA

T

SI

G

 R

TN

12

V R

TN

+1

2V

D

C

Key Holes on
Reverse

TELEPHONE TROUBLESHOOTING:
1.  Identify the bad line (POTS 1-8).
2.  Plug any working phone into 
      the appropriate jack.
        If the telephone works, the unit
            is functioning normally.
        If the telephone does not work, 
           contact your service provider.
3.  Remove the telephone from the 
       POTS jack.

TOTAL ACCESS 372E

1287723G1

Screw Slot

TELEPHONE TROUBLESHOOTING:
1.  Identify the bad line (POTS 1-8).
2.  Plug any working phone into 
      the appropriate jack.
        If the telephone works, the unit
            is functioning normally.
        If the telephone does not work, 
           contact your service provider.
3.  Remove the telephone from the 
       POTS jack.

TOTAL ACCESS 372

1287722G1

Key Holes on
Reverse

T

E

N

LO

W

 B

AT

BA

T MIS

REP

 B

AT

O

BA

T

SIG

 R

TN

12

RTN

+1

2V

D

C

P/N 1287722G1

P/N 1287722G2

Содержание Total Access 300 Series

Страница 1: ...nstream traffic uses 1490 nm while upstream traffic is carried on 1310 nm For RF TV distribution 1550 nm is used for downstream and 1610 nm is used for the upstream RF return path The ONT uses optical diplexers to separate the wavelengths This Job Aid covers the electronics module and housings listed in the following table Refer to the Total Access 300 Series Small Business Unit ONT Installation a...

Страница 2: ...g After unpacking the ONT inspect it for damage If damage is noted file a claim with the carrier and then contact ADTRAN For more information refer to the warranty Required Tools and Supplies In addition to standard technician tools you will need the following for this installation Carpenter s level 3 32 screw driver for connecting ONT power 5 32 hex tamper proof bit RJ 45 RJ 11 crimper A telephon...

Страница 3: ...r and Alarm Connector Description Pin Out UPS Connector 1 LOW BAT 1 2 BAT MIS 2 3 REP BAT 3 4 ON BAT 4 5 SIG RTN 5 6 12 V RTN 6 7 12 VDC 7 Pin 1 Pin 7 1 2 3 4 5 6 7 UPS Power Connector Power Alarm Connector Low Battery Battery Missing Replace Battery On Battery Signal Return 12V Return 12VDC 2 Strip back the jacket of the subscriber Ethernet cable and connect the 4 pair twisted wires to the RJ 45 ...

Страница 4: ...normally If the telephone does not work contact your service provider 3 Remove the telephone from the POTS jack TOTALACCESS 372 1287722G1 FiberTray Verify Local Power Source Wiring The ONT needs to be powered by a UL Listed Power Supply that is suitable for the application with Output at Local Power Supply LPS Levels Install the UPS Installation of the UPS P N 1187735G1 will be dictated by on site...

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