ADTRAN Total Access 372 - Figure 9. SBU ONT Ground Connection

Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
20 61287722G1-5B
6. ReinserttherubbergrommetwiththegroundwirebackintheSBUONThousing(see
Step3inFigure8onpage19).
7. EnsurethegroundwireisroutedasshowninFigure9.
Figure 9. SBU ONT Ground Connection
8. Routethe12AWGgroundwire12”belowfinishedgradeby theshortestandmostdirect
routetotheACMult
ipleGroundNeutral(MGN)ofthesubscriberpremisesfreeofany
sharpbends.(Seethe“A l t e r n a t i v e GroundingMethod”onpage 21ifMGNisnot
available).
9. Attachthe12AWGgroundwiretothesideofthesubscriberpremiseswith stainlesssteel
halfmoonclampsortie‐wrapthegroundtotheriserconduitoftheburiedfi
bercable
dr
op.Whenusingtie‐wrapswaituntiltheLimitedPowerSource(LPS)wirerunhasbeen
installedandtie‐wrapboththe12AWGgroundwireandtheLPSwireruntotheriser
conduitoftheburiedfiberdropcable.
10.
Clea
ntheMGNconnectorwithemeryclothtoinsureastableconnection.
11. Coattheconnectionwithametalcorrosionpreventative.
12. Connectthegroundwiretothegroundlugandtighten.
13. AttachaWarningGroundTagtothisgroundingconnection.
Ground
Note: Color for this
and other illustrations
is for clarity purposes
only.
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