Figure - Cisco WS-C2950T-48-SI Hardware Installation Manual

Appendix C Connecting to DC Power
To wire the switch to a DC-input power source, follow these steps:
Locate the terminal block plug (see
Step 1
Figure C-4
Identify the positive and negative feed positions for the terminal block connection. The wiring sequence
Step 2
is positive to positive and negative to negative for both the A and the B feed wires.
The rear panel of the Catalyst 2950G-24-EI-DC switch or the front panel of the Catalyst 2950ST-24 LRE
997 switch identifies the positive and negative positions for both the A and B feed wires.
shows the positions on the Catalyst 2950G-24-EI-DC switch.
Figure C-5
Using an 18-gauge wire-stripping tool, strip each of the four wires coming from the DC-input power
Step 3
source to 0.27 inch (6.6 mm) ± 0.02 inch (0.5 mm). Do not strip more than 0.29 inch (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 C-6
0.25 in. (6.3 mm) ± 0.02 in. (0.5 mm)
OL-6156-01

Figure

Terminal Block Plug
Positive and Negative Positions
3 6 - 7 2 V
1 - 0 .5 A
A
B
Stripping the DC-Input Power Source Wire
C-4).
Catalyst 2950 Switch Hardware Installation Guide
Wiring the DC-Input Power Source
Figure C-5
C-5