6TANTP501-1E
TOTAL ACCESS 3000/3010
NTP-501
Page 7 of 22
Total Access
®
3000/3010 System Manual
© 2002, ADTRAN, Inc.
1.4.3
Test Frame Ground Connection
To ensure a good ground, use a multimeter to check continuity between the frame
grounding lug and the rack grounding strap at the top of the rack. Using a voltmeter set
to its lowest resistance range, if applicable, place one lead on the rack’s ground strap
and the other lead on the Total Access 3000/3010 frame ground terminal. The reading
should be 1 or 2 ohms. Greater readings should be investigated. Repeat the process for
the Fan Module, using the rack’s grounding strap and bare metal on the Fan Module
chassis, such as the mounting screws. Readings should be in the 1 to 2 ohm range.
Greater readings should be investigated.
1.4.4
Connect Power and Return to Shelves
After connecting and checking the ground to the Total Access 3000/3010 shelf,
connect power to the shelf. Check to make sure your power source is providing the
correct power and polarity to the shelf. To connect power and return to the shelf:
1.Determine which fuse/circuit breaker pairs are to supply power and return to the
Total Access 3000/3010 shelf.
2.Remove the fuses/turn off circuit breakers from the A and B slots for the pair
determined in the above step.
3.Using a #1 Phillips-head screwdriver, remove the Plexiglass cover to the power
terminals. The power terminals are labeled TS1 and TS2.
4.Cut four lengths of AWG 10-12 wire to reach from the terminals on the fuse and
alarm panel to the power terminals on the Total Access 3000/3010 shelf. Be sure
to include enough length to allow for tying the wire neatly to the frame as
specified by CO SOP. Wire color should differentiate between -48 VDC supply
and return, according to CO SOP. (For power wire gauge, see Table 1 on page 2.)
5.Using the crimping tool, connect an appropriate lug to each end of the wires.
6.Using a screwdriver appropriate for the fuse and alarm panel terminals, and a
straight-slot screwdriver for the Total Access 3000/3010 power terminal, connect
the ends of one wire between the “A” CO -48 VDC supply and the
“-48 VDC PRI” terminal on the Total Access 3000/3010 backplane.
7.Connect three more power wires, connecting the “A” CO -48 V return with TS1
-48 VDC RET; “B” CO -48 VDC supply with TS2 -48 VDC SEC; and “B” CO
-48 VDC return with TS2 -48 VDC RET.
1.4.5
Connect Power to Fan Units
The Total Access 3000/3010 Fan Module is powered by dual independent
-48 VDC / 1 Amp power supplies from the CO. The Fan Module comes with a one
amp fuse mounted on the fan frame, and draws less than 200 milliamps.