Preparing for Router Installation
Site Electrical Wiring Guidelines on page 75
Router Power Requirements on page 76
AC Power, Connection, and Power Cord Specifications on page 76
DC Power, Connection, and Power Cable Specifications on page 77
Site Electrical Wiring Guidelines
WARNING:
DC-powered J4350 and J6350 Services Routers are intended for
installation only in a restricted access location.
When planning the electrical wiring at your site, consider the factors
discussed in the following sections.
Signaling Limitations
Improperly installed wires can emit radio interference. In addition, the potential
for damage from lightning strikes increases if wires exceed recommended
distances, or if wires pass between buildings. The electromagnetic pulse (EMP)
caused by lightning can damage unshielded conductors and destroy electronic
devices. If your site has previously experienced such problems, you might want
to consult experts in electrical surge suppression and shielding.
Radio Frequency Interference
You can reduce or eliminate the emission of radio frequency interference (RFI) from
your site wiring by using twisted-pair cable with a good distribution of grounding
conductors. If you must exceed the recommended distances, use a high-quality
twisted-pair cable with one ground conductor for each data signal when applicable.
Electromagnetic Compatibility
If your site is susceptible to problems with electromagnetic compatibility
(EMC), particularly from lightning or radio transmitters, you might want to
seek expert advice. Strong sources of electromagnetic interference (EMI) can
destroy the signal drivers and receivers in the router and conduct power
surges over the lines into the equipment, resulting in an electrical hazard.
It is particularly important to provide a properly grounded and shielded
environment and to use electrical surge-suppression devices.
CAUTION:
To comply with intrabuilding lightning/surge requirements, intrabuilding
wiring must be shielded, and the shield for the wiring must be grounded at both
ends.
Power Guidelines, Requirements, and Specifications
75
Содержание J4350
Страница 14: ...J4350 and J6350 Services Router Getting Started Guide xiv Table of Contents...
Страница 22: ...2 J series Overview...
Страница 68: ...J4350 and J6350 Services Router Getting Started Guide 48 Field Replaceable PIMs...
Страница 75: ...Services Router User Interface Overview Figure 25 J Web Layout Using the J Web Interface 55...
Страница 88: ...J4350 and J6350 Services Router Getting Started Guide 68 Using the Command Line Interface...
Страница 90: ...70 Installing a Services Router...
Страница 100: ...J4350 and J6350 Services Router Getting Started Guide 80 Site Preparation Checklist...
Страница 112: ...J4350 and J6350 Services Router Getting Started Guide 92 Powering a Services Router On and Off...
Страница 144: ...J4350 and J6350 Services Router Getting Started Guide 124 Verifying Secure Web Access...
Страница 160: ...J4350 and J6350 Services Router Getting Started Guide 140 Verifying J series License Management...
Страница 162: ...142 Maintaining Services Router Hardware...
Страница 194: ...J4350 and J6350 Services Router Getting Started Guide 174 Troubleshooting Hardware Components...
Страница 202: ...J4350 and J6350 Services Router Getting Started Guide 182 Packing a Router or Component for Shipment...
Страница 204: ...184 J series Requirements and Specifications...
Страница 220: ...J4350 and J6350 Services Router Getting Started Guide 200 ISDN RJ 45 Connector Pinout...
Страница 267: ...Part 5 Index Index 247...
Страница 268: ...248 Index...