Cisco Systems UBR-3X10 manual Site Requirements, AC Power, DC Power

Models: UBR-3X10

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Site Requirements

Chapter 2 Preparing for Installation

Site Requirements

Site Requirements

To ensure normal operation and avoid unnecessary maintenance, plan your site configuration and prepare your site before installation. Take into account the following criteria:

Note To locate the most reliable channels for your downstream and upstream channel plans, we recommend that you perform a sweep of all available channels for at least a 24 hours to verify the presence or absence of impulse and ingress noise.

Select forward and reverse channel frequencies from the range specified in your channel plan.

Verify that your cable network meets system requirements and Data-over-Cable Service Interface Specifications (DOCSIS) and/or EuroDOCSIS downstream and upstream specifications.

Make sure that the site maintains an ambient temperature of 32 to 104°F (0 to 40°C), and keep the area around the chassis as free from dust as is practical.

AC Power

The AC input of the power supply module uses a power factor corrector that allows the Cisco uBR 3x10 RF Switch to operate on input voltage and frequency within the ranges of 100 to 240 VAC and

50 to 60 Hz.

Note We recommend an uninterruptable power source to protect against power failures at your site. An AC-input power supply has an electrical current rating of less than 1 A.

See Appendix A, “Specifications and Component Part Numbers,” for system power specifications, including input voltage and operating frequency ranges.

DC Power

The DC input of the power supply module operates at -48 VDC input voltage and supplies +12.0 VDC power to the Cisco uBR 3x10 RF Switch’s internal components through the midplane.

Note Each DC-input power supply has an electrical current rating of 0.7A, 20 VA. Use a minimum of 14 AWG (2.5 mm2) wire for the input to each DC-input power supply. The power input must be protected by a 15 A circuit breaker or fuse that is in compliance with your local electric regulations.

See Appendix A, “Specifications and Component Part Numbers,” for system power specifications, including input voltage and operating frequency ranges.

Cisco uBR-3x10 RF Switch Hardware Installation and Cabling Guide

 

OL-1984-06

2-5

 

 

 

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Cisco Systems UBR-3X10 manual Site Requirements, AC Power, DC Power