3-28
October, 1998
GRF 400/1600 Getting Started - 1.4 Update 2
Rack Mount and Power On Procedures
Applying DC power to the GRF 1600
!
Caution:
The power supplies contain hazardous voltages and energy levels.
•
Do not attempt to service a unit yourself. Refer all servicing to qualified personnel.
Vorsicht
: In den Netzteilen liegen Hochspannung und gefährliche Energiepegel an.
•
Versuchen Sie nicht, das Gerät selbst zu warten. Alle Reparaturarbeiten sind von
Fachkräften auszuführen.
DC terminals
Lucent ships the DC unit fitted with an aluminum cover over the terminal area. Remove the
two screws securing the cover to attach the DC input wiring. After the DC unit is properly
wired, you must close the cover and replace the two screws.
Figure 3-14 shows the three terminal pairs on the front of the 48V DC (negative) power supply
drawer. The NEGATIVE 48V and POSITIVE 48V terminal pairs are circled.
!
Warning:
If you connect the NEGATIVE and POSITIVE DC wires incorrectly, damage to the
power supply may result and it will not function. The power supplies may only be serviced by
a qualified trained service technician.
Wiring the DC supply
Before you begin, please read through the steps and refer to Figure 3-14 and Figure 3-15.
Wire and lug requirements:
•
Use AWG #6 stranded copper wire.
•
Use two-hole, short barrel copper lugs with 1/4 inch stud
—Thomas & Betts, P/N 54205, or equivalent.
•
Wire and lug must be UL Recognized and CSA Certified.
•
Crimp wire and barrel using the correct crimping tool, Thomas & Betts hand crimper P/N
TBM20S, or a crimper specified for use with equivalent lug.
Always connect a protective earth ground to the terminal pair with this label:
