BitRage orporated CR45-A-53 Point to Point Fixed UNII Transmitter User Manual CR45A UR

BitRage Incorporated Point to Point Fixed UNII Transmitter CR45A UR

Contents

Manual

CR45-A-53/58/58L
Transceivers
User Reference
(Part numberxxxx)
Ver 0.01
May 2001
(BitRage logo)
BitRage™ is a trademark of BitRage, Inc.
NOTE: This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
??Reorient or locate the receiving antenna
??Increase the separation between the equipment and receiver
??Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected
??Consult the dealer or experienced radio/TV technician for help
The user must not make any modifications to the unit, unless expressly approved by the
party responsible for compliance. Failure to comply with this rule could void the user's
authority to operate the equipment.
Information is this document is subject to change without notice. Names and data used
in examples herein are fictitious unless otherwise noted. No part of this document may
be reproduced or transmitted in any form or by any means, electronic or mechanical, for
any purpose, without the express consent of BitRage, Inc.
Copyright © 2001 by BitRage, Inc.
All rights reserved.
xxxx, Ver. 0.01 2-1
Section 1. Product Description
[BitRage company, introductory info]
Symbols Used In This
Guide A note (icon1:) within this guide provides supplemental information that
may be useful in procedures or may indicate an exception or anomaly.
A caution (icon2:) indicates a condition or a risk factor that could disrupt
normal operations or create difficulty with data reception or output.
A warning (icon3) indicates danger a situation that could cause bodily injury
or death.
Note: This guide is intended for use by professional installation personnel
Before you work on any equipment, be aware of the hazards involved
with electrical circuitry and be familiar with standard practices for
preventing accidents..
CR45-A Overview
[add photograph of CR45-A]
Figure 1-1. The CR45-A
Troubleshooting
xxxx, Ver 0.01
2–2
The CR45-A radio system provides full duplex data communication at full-
time 45 Mbps rate, operating in the UNII bands [range needed?]. Under
FCC rules, users are not required to be licensed to operate a system, as long
as the radio meets the maximum allowable EIRP limits.
CR45-A radio has been designed uniquely without a special modulation
scheme to provide clear channel. While this radio can manage the
transmission of the packet based DS-3 signal, its ability to manage the
constant stream of DS-3 signal allows the transportation of most complex
signals. Because the radio was designed without complex modulation
technology to meet the unlicensed spectrum, data is transported accurately
and efficiently.
To provide installation ease and minimal maintenance, antenna alignment is
the only required procedure. All other adjustments are done automatically.
Product Specifications
Wireless Digital
Transceiver
RF system 5.8 GHz
Operation Full-duplex
Operating Frequency 5.775 GHz TX and 5.301 GHz RX
5.301 GHz TX and 5.775 GHz RX
Data Interface Baseband DS-3
Data Modulation
Scheme none
Connectors 75 ohm female BNC (Data In, Data Out)
Type N female (antenna)
4-pin twist lock (DC power)
Regulatory Compliance FCC Part 15, Subpart E
Operating Temperature
Range -40C to +80C
Power Requirement 15 VDC to 27 VDC @ 0.85 Amps
Operating Range 11 miles
Physical Dimensions 7.50 in. wide, 8.5 in. high, 2 in. deep
(width includes mounting ears)
Troubleshooting
xxxxxx Ver. 0.01 1-3
Antenna Requirements Use 2.0 ft. dish for distance up to 4.0 miles
Use 3.0 ft. dish for distance up to 7.0 miles
Use 6.0 ft. dish for distance up to 11.0 miles
Note: Line of sight required.
Digital Signal
Process (included
within radio
housing)
Data Interface DS-3
Line Rate 44.736 Mbps ? 20 PPM
Line Code B3ZS
Clock Jitter 30 pico second peak-to-peak RMS
Load 75Ohms ? 5%
Power Level When all "1" pattern is transmitted, power level @22.368 MHz ?0.002MHz
must be -1.8dbM to +5.8dbM and the power level at 44.736 MHz ?0.002
MHz must be -21.8dbM to -14.3dbM 2,3
Operating Power +4.5 VDC to +5.0 VDC (supplied from radio)
Operating Temperature -40C to +85 C
General Information
Maximum Cable Use
Length Data cables: Up to 900 feet. featuring auto gain and auto EQ
Power cables: Up to 900 feet
Hazard Warnings
Warning: The CR45-A products should only be installed by professional
installers.
RF Exposure
Compliance Installation of the CR45A and its antenna must be performed by qualified
personnel who are following the procedures and guidelines given in the
CR45A Installation and Setup Guide.
To comply with FCC radio frequency exposure requirements, the antennas
used for this device must be installed to provide a separation distance at least
1.5 meters (5 feet) from all persons. Under no circumstances should you or
anyone get closer than 1.5 m to the antenna without first ensuring that the
system is powered off.
Troubleshooting
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User Requirements Persons operating the equipment must ensure that it does not cause
interference. Specifications must be followed for any special cables (for
example, shielded cables) that are required for the unit to meet the EMC
standards to which compliance is declared.
The user must not make any modifications to the unit, unless expressly
approved by the party responsible for compliance. Failure to comply with
this rule could void the user's authority to operate the equipment.
xxxx, Ver. 0.01 2-1
Section 2 . Troubleshooting
Connectors and Indicators
The cable connectors and status indicators on the CR45-A are shown in
Figure 2-1 and described as follows:
[insert illustration here]
Figure 2-1. CR45-A Connectors and Indicators
?Antenna connector Type N female 50 Ohm
Use up to 3.0 ft cable
? Data In connector BNC female 75 Ohm
Use RG 59 cable up to 900 feet
Note: Automatic Gain and Automatic EQ circuits are built-in
? Data Out connector BNC female 75 Ohm
Use RG 59 cable up to 900 feet
Note: Automatic Gain and Automatic EQ circuits are built-in
? Power connector 4-pin female twist lock
2 pins are assigned to receive the DC operating voltage
2 pins are assigned to send the status data signal to the remote
monitoring unit
? Numeric display Used during the alignment process. Maximum value is displayed when
antenna is in the ideal position.
? RX LED On when data is being received
? TX LED On when data is being transmitted
? Power display On when DC operating power is present in the radio
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Basic Safety
Guidelines ??Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate
electrical inspection authority or an electrician if you are uncertain that a
suitable grounding is available.
??Do not work on the system or connect or disconnect cables during
periods of lightning activity.
??Disconnect all power and external cables before moving a chassis.
??Do not work alone if potentially hazardous conditions exist.
??Always verify that power has been disconnected from a circuit; never
assume it has been.
??Do not perform any action that creates a potential hazard to people or
makes the equipment unsafe.
??Carefully examine your work area for possible hazards such as moist
floors, ungrounded power extension cables, and missing safety fuses.
Warning: This equipment contains an energy hazard. Disconnect the system
before servicing.
Safety Notes About
The Installation Note: This information has been supplied to the professional personnel
who installed and set up the CR45A and antenna. It is presented here
for your information only.
The installer should have mounted all transmit antennas so as to comply with
the limits for human exposure to radio frequency (RF) fields per paragraph
1.1307 of the Federal Communications Commission (FCC) Regulations. The
FCC requirements incorporate limits for Maximum Permissible Exposure
(MPE) in terms of electric field strength, magnetic field strength, and power
density.
The CR45A transceivers are to be installed on rooftops and towers
designated for fixed wireless applications. Table 2-1 specifies the minimum
distance that must be maintained between the antenna and any areas where
persons may have access, such as rooftop walkways and sidewalks, as well
as through windows and other RF-transparent areas behind which persons
may be located.
Table 2-1 Antenna Radiation Hazard
Radio Frequency Power
Output,
dBm
Antenna
Gain, DBi MPE
Distance
CR45-A-53 5.3 GHz +2.5 dBm 28 dBi 1.5m (5 ft)
CR45-A-58 5.8 GHz
5.8GHz +6.5 dBm
+6.5 dBm 31 dBi
28 dBi 1.5m (5 ft)
CR45-A-58L 5.8 GHz +1.8dBm 37 dBi 1.5m (5 ft)
Troubleshooting
xxxxxx Ver. 0.01 1-3
Additional
Information on the
Web
In addition to meeting these requirements, the antenna system installer is
responsible for installing antennas so that they comply with FCC RF
exposure requirements. The FCC RF exposure requirements at a given
location are based on the sum total of contributions from all radio sources.
For BitRage antennas placed in close proximity to other transmitters,
installers must ensure that MPE guidelines in 1.1307 of the FCC Rules can
still be met, after including the contribution from the new antenna. Further
information and guidance is available in FCC Bulletin OET 65,
www.fcc.gov/oet/rfsafety.
xxxx, Ver. 0.01 2-1
Glossary
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