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B-4 Section 61182007L1-5, Issue 1 61182007L1-5A
3.2.5 From the provisioning menu of the
AUX circuit, reset the AUX unit to
OOS-M.
3.2.6 Logoff 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>.
4. INSTALL THE DUAL-SLOT STANDALONE
HOUSING
See the associated Installation and Maintenance
practice, P/N 61245034L2-5, for mounting and wiring
instructions.
5. INSTALL THE NTU
The NTU terminates local loop HDSL signals
originating from the Central Office (CO) unit and
transforms the HDSL signal into traditional E1 signals
to be delivered to the customer.
5.1 Install 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.
5.1.1 Connect the individual 4-wire HDSL
circuits to the HDSL terminal block
inside the Dual slot remote housing.
The 4-wire MAIN circuit will connect
to the Loop 1 and Loop 2 terminals
labeled “MAIN” and the 4-wire AUX
circuit will connect to the Loop 1 and
Loop 2 terminals labeled “AUX”.
5.1.2 Gently but firmly push the NTU into
the lower dual slot remote housing
slot. Repeat this step for the second
NTU in the upper slot.
5.1.3 The 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.
5.1.4 Upon provisioning of the NTUs, the
faceplate LEDs should read as shown
in Table 3.
NOTE
The condition of the ALM, DSX and E1 LEDs
depends upon the status of the equipment on the
ends of the installed circuit. If both terminations
of the circuit are appropriately configured and
prepared to pass data, the LTU ALM LEDs will
be out, the LTU DSX LEDs will be green, the
MAIN NTU E1 LED will be green and ALM
off, while the AUX NTU E1 will be off, and
ALM red.
6. RESET ALL EQUIPMENT TO OPERATING
CONDITION
When the customers at both ends of the circuit have
turned up their equipment and are running data (or test
patterns, or are in loopbacks, or some other condition
that will preclude the generation of alarms), the LTUs
and DS3 MUX can be placed In Service to restore the
alarm generating functions of the equipment to the
network.
6.0.1 From the Total Access 3010 DS3 MUX
Provisioning Screen, select Option 4,
Service State, and place the DS3
MUX into In Service. If dual
multiplexers are being utilized, place
MUX B In Service.
6.0.2 From the Total Access 3010 LTU
Provisioning Screen for both the MAIN
and AUX LTUs, select the Service State
option, and place both LTUs In Service.
Placing the DS3 multiplexers In Service will change
the Power LED from yellow to green. Placing the
LTUs In Service will change the PWR LED from slow
flashing green to steady green.
7. DISABLING PROTECTION SWITCHING
Disabling the protection switching mode from the
circuit converts both the MAIN and AUX circuits into
independent standalone HDSL local loops.