Power Connectors; Internal Power Supply Connector; Dc Power Connector - Cisco WS-C2950-12 Hardware Installation Manual

Rear-Panel Description
Figure 1-22 Catalyst 2950G-24-EI-DC Switch Rear Panel
36 - 72 V
D C IN PU
1 - 0. 5A
T FO R R
PO W ER
SU PP LY
SP EC IF
A IE D IN M
+1 2V @
B
DC power
connector
RPS
connector

Power Connectors

Internal Power Supply Connector

DC Power Connector

Caution
Catalyst 2950 Desktop Switch Hardware Installation Guide
1-22
EM O TE
AN UA L.
4. 5A
C O N SO
LE
Fan
RJ-45
console
port
You can provide power to a switch by using the AC internal power supply, the
DC-input power source, or the Cisco RPS.
The internal AC power supply is an autoranging unit that supports input voltages
between 100 and 240 VAC. Other than for the Catalyst 2950G-24-EI-DC switch,
use the supplied AC power cord to connect the AC power connector to an AC
power outlet.
The Catalyst 2950G-24-EI-DC switch has an internal DC-power converter. It has
dual feeds (A and B) that are diode-OR-ed into a single power block. For
installation instructions, see the
You must connect the Catalyst 2950G-24-EI-DC switch only to a DC-input power
source that has an input supply voltage from –36 to –72 VDC. If the supply
voltage is not in this range, the switch might not operate properly or might be
damaged.
DC
ground
lug
"Connecting to DC Power" section on page
Chapter 1 Overview
2-23.
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