If this is an initial installation, the units will require provisioning to appropriately configure them out of the factory default states.
2.1Logon to Total Access system.
2.2Check to ensure the LTU line cards are correctly provisioned according to circuit parameters. Under the Provisioning menu, set numbered option, Network Source, to G.703. This option causes the LTU to look to the individual G.703 backplane connector for its data feed.
2.3Ensure the provisioning of both the
MAIN and AUX LTUs is identical, except for the following options:
a.Provision the MAIN unit to OUT OF
b.Provision the AUX unit to the OUT OF
2.4Enable protection switching
a.Access the MAIN Menu of the LTU in the
b.Select Option 7, Protection Configuration.
c.Select Option 1, Protection Mode.
d.To enable protection switching, select Option 1, ENABLE.
NOTE
Unless the AUX circuit is in the
e.Set Options 2 and 3, BER Threshold and BER Interval (see Table 3 in the Installation and Maintenance practice for definitions).
f.Back out of the menu for the MAIN slot and access the LTU in the
g.Select Option 7, Protection Configuration.
h.Option 1, Protection Mode, will have been set to AUTO. If you desire to provision a different
i.Set Options
2.5From the provisioning menu of the AUX circuit, reset the AUX unit to
2.6Logoff the system
a.From the Total Access Menu, select Option 7, Logoff, and press <Enter>.
b.From the Exit and Logoff screen, select “Y” and press <Enter>.
3.INSTALL THE DUAL-SLOT STANDALONE HOUSING
See the associated Installation and Maintenance practice, P/N
4. INSTALL THE NTU
The NTU terminates local loop HDSL signals originating from the Central Office (CO) unit and transforms the HDSL signal into traditional G.703 signals to be delivered to the customer.
4.1Install the NTU into the Dual-Slot Remote Housing
Electronic modules can be damaged by static electrical discharge. Before handling modules, wear an antistatic discharge wrist strap to prevent damage to electronic components. Place modules in antistatic packing material when transporting or storing. When working on modules, always place them on an approved antistatic mat that is electrically grounded.
4.1.1Connect the individual
The
4.1.2Gently but firmly push the NTU into the lower dual slot remote housing slot. Repeat this step for the second NTU in the upper slot.
4.1.3The LTUs will transfer provisioning data to the NTUs upon power up. Some provisioning of the NTU, however, may be necessary due to hardware DIP switches and jumpers. See the Installation and Maintenance practice for the specific NTU utilized by your company.
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