10-4
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 10 Installing the DC Shelf
DC Power Input Connections
Figure 10-3 DC Power Connections—Without Conduit Box
Only a source that complies with the safety extra low voltage (SELV) requirements in UL1950, CSA
C22.2 No. 950, EN60950 may be connected to a BPX switch DC system.
To make DC power connections to the BPX switch, use the following procedure:
Step 1
Locate the conduit terminating box, one for each Power Entry Module (see Figure 10-2).
Step 2
Remove the two cover screws and lift off the cover. If conduit is required, go to Step 3. If conduit is not
required, go to Step 4.
Step 3
Determine which knockout to remove (rear or bottom). Remove knockout and install conduit fitting.
Step 4
If conduit is not required, remove the conduit box by removing the two screws, one above the terminal
block and one below it.
Step 5
Run three wires from the DC terminal block to a source of 48 VDC.
Use 8 AWG wire (or metric equivalent for E1 systems).
Use a #10 screw ring lug designed for 8 AWG wire (90
°
lug if using conduit box) to terminate the wires.
Caution
Ensure that the polarity of the DC input wiring is correct! Connections with reversed polarity may
damage the equipment.
ON
CB1
OFF
0
1
+RTN
DC terminal
block
Plastic cover
(removed)
Earth
ground
terminal
48V
H8006
Содержание BPX 8650
Страница 49: ...P A R T 1 The BPX Switch ...
Страница 50: ......
Страница 159: ...P A R T 2 Installation ...
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Страница 273: ...P A R T 3 Initial Configuration and Network Management ...
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Страница 311: ...P A R T 4 Configuring Connections ...
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Страница 487: ...P A R T 5 Troubleshooting and Maintenance ...
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Страница 533: ...P A R T 6 BPX Specifications ...
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Страница 555: ...P A R T 7 Appendices ...
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