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61181500L2-5B 5
INSTALLATION
After unpacking the Total Access 3000/3010 LPU, inspect it for damage. If damage has
occurred, file a claim with the carrier then contact ADTRAN Customer Service.
Refer to “Appendix A, Warranty” for further information. If possible, keep the original shipping
container for returning the LPU for repair or for verification of shipping damage.
Installation Considerations
The number of LPUs installed in a system is significant, because overloading the Total Access
3000/3010 shelf with too many LPUs can cause the 20 amp current limit to be reached or
exceeded. An LPU producing 100 watts draws approximately 2.6 amps of current from the
Total Access 3000/3010 backplane. A fully loaded Total Access 3000/3010 shelf with
fourteen LPUs, each drawing 2.6 amps, would draw a total of 36.4 amps of current from the
Total Access 3000/3010 backplane. This is over the Total Access 3000/3010 shelf limit and
can cause the shelf fuse to blow. Therefore, it is recommended for safety reasons that no more
than seven LPUs be placed into a Total Access 3000/3010 shelf supplying power to the
DSLAMs with sub-full rate ADSL modules. If deployed in a configuration which requires
heavier loads, this maximum number of seven LPUs should be reduced to keep the Total
Access 3000/3010 backplane current at ≤ 20 amps.
The gauge and length of the wire used to transfer power is significant, because impedance
increases as the gauge and length of the wire increases and a greater impedance causes power
to be wasted during transmission.
Shipping Contents
The contents include the following items:
• Total Access 3000/3010 4-Pair Line Power Unit
• Total Access 3000/3010 4-Pair Line Power Unit Job Aid (P/N 61181500L2-22)
•Total Access 3000/3010 4-Pair Line Power Unit Compliance Notice (P/N 61181500L2-17)
Instructions for Installing the Module
The LPU installs in any two adjacent slots in a Total Access 3000/3010 chassis. The Total
Access 3000/3010 backplane connectors allow for either odd-even or even-odd slot insertion.
For installations residing in a CO or other controlled environment, fan cooling is not required.
However, a heat baffle is required directly above each Total Access 3000/3010 chassis. For
installations in remote locations, fan cooling is required for each two-stack arrangement of
Total Access 3000/3010 chassis.
If heat-generating equipment is installed below the Total Access 3000/3010 chassis, an
additional heat baffle may be required between the heat-generating unit and the bottom of the
Total Access 3000/3010 chassis.