Net Optics 8x1 Regeneration Taps - Manual (Page 11)

8x1 Regeneration Taps
8
To connect DC input power on DC models:
1. If you have not already done so, unpack the Regeneration Tap and verify
that you have appropriate DC power cables. You also need a Phillips
screwdriver to complete the installation.
2. If present, remove the protective covers from the DC power terminal
blocks.
3. Connect an earth ground lead to the terminal labeled with the ground symbol
( ), which is the left-most terminal, on both DC power terminal blocks on
the rear of the chassis. Use the screwdriver to tighten the connections. Also
connect the earth ground to the ground stud near the center of the rear panel.
4. Connect one of the DC power cables to one of the DC power terminal
blocks on the rear panel. Connect the negative (-48VDC) side of the cable
to the terminal labeled with the minus symbol (—) and the positive (0V)
side of the cable to the terminal labeled with the plus symbol (+). The
minus terminal is in the center and the plus terminal is on the right. Use
the screwdriver to tighten the connections.
5. Repeat Step 4 for the other DC power cable, connecting it to the remaining
DC power terminal block on the rear panel.
6. Carefully connect the other ends of the DC power cables to two -48VDC
power sources. If possible, turn off the power to the power source while
you are making these connections. Be sure to connect the positive sides
of the cables to the positive (plus) sides of the power sources, and the
negative sides of the power cables to the negative (minus) sides of the
power sources.
Installation in a Restricted Access Location in Finland
and Norway
Because of concerns about unreliable earthing in Finland and Norway,
this equipment must be installed in a Restricted Access Location (RAL) in
these countries. An RAL is defined as an access that can be gained only by
trained service personnel who have been instructed about the reasons for the
restricted access and any safety precautions that must be taken. In these cases,
the use of a tool (such as lock and key) or other means of security is required
for access to this equipment.