Zhone etherxtend 3300 series User Manual page 21

Figure 3: AC feed power connection
To AC power
For DC direct feed operation: Connect the 48 VDC SELV supply source
that is electrically isolated from the AC source. Use Stranded 18 AWG.
(1.045mm
to a maximum of 6 feet. All conductors on both ends of the wire should be
stripped back .25 inches, but not tinned. Use
the two-wire terminal provided. The 48 VDC source is to be reliably
connected to earth. Ground by attaching an earthing ground wire to the
Sem Screw Zhone P/N 150-00071-01 (8-32 x 1/2 split lock steel screw)
provided on the rear panel of the chassis next to the earth ground symbol.
The wire should be a minimum of 14 AWG (2.7 mm
conductor with insulation colored green with a yellow strip and should
connect to a copper grounding lug Heyco P/N 1851 (Zhone P/N
170-02880-01) or equivalent. The copper ground lug will connect to
grounding screw terminal located on the back of the EtherXtend chassis
next to the earth ground symbol.
Figure 4: DC feed power connection
Power
Supply
2
) gauge wire, type SPT or HO3 wire. The length may vary up
To DC power
+/-
Installation safety precautions
48 V D C 48 V D C
0. 5 A 0. 5 A
R T N R T N
-4 8 -4 8
P O W E R P O W E R
Figure 4 as a guide to wire
2
) grounding
48 V D C
0. 5 A
R T N -4
8
P O W E R
EtherXtend User's Guide
19