Dell PowerConnect J-SRX240, Hardware Manual

Page: 139 / 160

APPENDIX B
J-SRX240 Services Gateway Power
Guidelines, Requirements, and
Specifications
This appendix includes the following topics:
•
J-SRX240 Services Gateway Site Electrical Wiring Guidelines on page 123
• J-SRX240 Services Gateway Power Specifications and Requirements on page 124
• J-SRX240 Services Gateway Grounding Specifications on page 125
J-SRX240 Services Gateway Site Electrical Wiring Guidelines
Table 36 on page 123 describes the factors you must consider while planning the electrical
wiring for the services gateway at your site.
CAUTION: It is particularly important to provide a properly grounded and shielded
environment and to use electrical surge-suppression devices.
Table 36: Site Electrical Wiring Guidelines for the Services Gateway
Guideline Site Wiring Factor
To ensure that signaling functions optimally:
•
Install wires correctly.
Improperly installed wires can emit radio interference.
•
Do not exceed the recommended distances or pass wires between
buildings.
The potential for damage from lightning strikes increases if wires exceed
recommended distances or if wires pass between buildings.
•
Shield all conductors.
The electromagnetic pulse (EMP) caused by lightning can damage
unshielded conductors and destroy electronic devices.
Signaling
Limitations
123