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32
C
HAPTER
2: I
NSTALLING
THE
S
WITCH
Figure 10
RPS Connection to the Switch
When the RPS is connected to the switch, you can move the circuit
breaker in the RPS to the closed (on) position and the switch will be
powered by the -48V DC power.
The -48V DC power takes priority over the AC mains and powers the
switch if it is connected.
Connecting the
Earthing Cable
Use the earthing cable that accompanies your switch if the length is
suitable. Alternatively use the earthing cable specification as defined in
Appendix C on page 127.
The earthing cable is only required if the switch is powered by the RPS
only.
The recommended cable length should not exceed three metres (9.84
feet).
+ -
NULL
-48 -60V
;2.0A
100-240V
;50/60Hz
;1.0A
~
NULL
-48 -60V;2 0A
Null
+
-
Pinout
Cable Tie
10014914_AB_Switch 4200G.book Page 32 Tuesday, October 2, 2007 12:13 PM
Содержание 4200G Series
Страница 4: ...10014914_AB_Switch 4200G book Page 4 Tuesday October 2 2007 12 13 PM ...
Страница 8: ...8 CONTENTS 10014914_AB_Switch 4200G book Page 8 Tuesday October 2 2007 12 13 PM ...
Страница 12: ...12 ABOUT THIS GUIDE 10014914_AB_Switch 4200G book Page 12 Tuesday October 2 2007 12 13 PM ...
Страница 36: ...36 CHAPTER 2 INSTALLING THE SWITCH 10014914_AB_Switch 4200G book Page 36 Tuesday October 2 2007 12 13 PM ...
Страница 62: ...62 CHAPTER 4 PROBLEM SOLVING 10014914_AB_Switch 4200G book Page 62 Tuesday October 2 2007 12 13 PM ...
Страница 66: ...66 APPENDIX A PIN OUTS 10014914_AB_Switch 4200G book Page 66 Tuesday October 2 2007 12 13 PM ...
Страница 70: ...70 APPENDIX B TECHNICAL SPECIFICATIONS 10014914_AB_Switch 4200G book Page 70 Tuesday October 2 2007 12 13 PM ...
Страница 78: ...78 APPENDIX D 3COM NETWORK MANAGEMENT 10014914_AB_Switch 4200G book Page 78 Tuesday October 2 2007 12 13 PM ...