Cisco 2955 Installation Guide Page 109

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3-45
Catalyst 2955 Hardware Installation Guide
78-14944-03
Chapter 3 Installation
Connecting the Switch to the Power Converter
Step 9 Connect the red wire to the positive pole of the DC power source, and connect the
black wire to the return pole. Ensure that each pole has a current-limiting-type
fuse rated to at least 600 VAC/DC ( such as the KLKD Midget fuse).
Step 10 Set the input voltage selector on the power converter to 230 V.
Figure 3-21 shows the completed wiring for the power converter and a
Catalyst 2955 switch.
Figure 3-21 The Power Converter Connected to the Catalyst 2955 Switch
and a DC Power Source
1 Power and relay connector 4 To earth ground
2 4 inches of thermal spacing 5 DC input wires
3 DC output wires 6 Switch functional ground connection
104761
13
14
MAJ
MIN
12x
11x
1x
2x
C
IS
C
O
C
A
T
A
L
Y
S
T
29
5
5
CONSOLE
100Base-FX MM
ALARMS
24V B
RTN B
3
4
5
6
7
8
9
1
0
1
1
12
1
2
A
B
1
3
1
4
M
A
J
M
IN
10Base-T/100Base-TX
RTN A
24V A
DC ok
+
DC 24V/2.5A
AC Power Converter
PWR-2955-AC=
AC
115/230V 50-60Hz
N L
+
23
0V
4
3
1
5
6
2
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