Cisco 2970 Hardware Installation Guide - Page 75

Positive and Negative Positions on the Switch Rear Panel

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Chapter 2 Installation Figure 2-22 Positive and Negative Positions on the Switch Rear Panel Connecting to DC Power 74078 CONSOLE BERFEOFREERPOCTOWONEMNRAENCUTAINL G DC INPUT ICNUPRURTE: 3N6T:- 72 4-2A A +- B +- Step 3 Positive and negative feed positions Using a 12- or 14-gauge wire-stripping tool, strip each of the four wires coming from the DC-input power source to 0.27 inch (6.86 mm) ± 0.05 inch (1.27 mm). (See Figure 2-23.) Do not strip more than 0.29 inches (7.4 mm) of insulation from the wire. Stripping more than the recommended amount of wire can leave exposed wire from the terminal block plug after installation. Figure 2-23 Stripping the DC-Input Power-Source Wire 0.25 in. (6.3 mm) ± 0.02 in. (0.5 mm) 60531 Step 4 Insert the exposed wire of one of the four DC-input power source wires into the terminal block plug. Make sure that you cannot see any wire lead. (See Figure 2-24.) Only wire with insulation should extend from the terminal block plug. Warning An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no exposed portion of the DC-input power source wire extends from the terminal block plug. 78-6461-04 Catalyst 2900 Series XL Hardware Installation Guide 2-31

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2-31
Catalyst 2900 Series XL Hardware Installation Guide
78-6461-04
Chapter 2
Installation
Connecting to DC Power
Figure 2-22
Positive and Negative Positions on the Switch Rear Panel
Step 3
Using a 12- or 14-gauge wire-stripping tool, strip each of the four wires coming
from the DC-input power source to 0.27 inch (6.86 mm)
±
0.05 inch (1.27 mm).
(See
Figure 2-23
.) Do not strip more than 0.29
inches (7.4 mm) of insulation from
the wire. Stripping more than the recommended amount of wire can leave exposed
wire from the terminal block plug after installation.
Figure 2-23
Stripping the DC-Input Power-Source Wire
Step 4
Insert the exposed wire of one of the four DC-input power source wires into the
terminal block plug. Make sure that you cannot see any wire lead. (See
Figure 2-24
.) Only wire
with
insulation
should extend from the terminal block
plug.
Warning
An exposed wire lead from a DC-input power source can conduct harmful levels
of electricity. Be sure that no exposed portion of the DC-input power source
wire extends from the terminal block plug.
CONSOLE
DC INPUT
REFER TO MANUAL
BEFORE CONNECTING
POWER
INPUT: 36 - 72
CURRENT: 4-2A
A
B
+
+
-
-
Positive and negative
feed positions
74078
0.25 in. (6.3 mm) ± 0.02 in. (0.5 mm)
60531