(BitRage logo)
CR45-A-53/58/58L
Transceivers
Installation and Set-up
Guide
(Part numberxxxx)
Ver 0.01
May 2001
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 i n 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 equ ipment 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 expres sly 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 f ictitious 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.
Section 1. Product Description
Introduction
Symbols Used In This
Guide
[BitRage company, introductory info]
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
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Product Description
The CR45-A radio system provides full duplex data communication at fulltime 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
Operating Frequency
Data Interface
Data Modulation
Scheme
Connectors
Regulatory Compliance
Operating Temperature
Range
Power Requirement
Operating Range
Physical Dimensions
Full-duplex
5.775 GHz TX and 5.301 GHz RX
5.301 GHz TX and 5.775 GHz RX
Baseband DS-3
none
75 ohm female BNC (Data In, Data Out)
Type N female (antenna)
4-pin twist lock (DC power)
FCC Part 15, Subpart E
-40C to +80C
15 VDC to 27 VDC @ 0.85 Amps
11 miles
7.50 in. wide, 8.5 in. high, 2 in. deep
(width includes mounting ears)
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Product Description
Antenna Requirements
Digital Signal
Process (included
within radio
housing)
Data Interface
Line Rate
Line Code
Clock Jitter
Load
Power Level
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.
DS-3
44.736 Mbps ? 20 PPM
B3ZS
30 pico second peak-to-peak RMS
75Ohms ? 5%
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
Operating Temperature
General Information
Maximum Cable Use
Length
+4.5 VDC to +5.0 VDC (supplied from radio)
-40C to +85 C
Data cables: Up to 900 feet. featuring auto gain and auto EQ
Power cables: Up to 900 feet
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Product Description
Connectors and Indicators
The cable connectors and status indicators on the CR45-A are shown in
Figure 1-2 and described as follows:
[insert illustration here]
Figure 1-2. 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
? Data Out connector
? Power connector
? Numeric display
? RX LED
? TX LED
? Power display
Use RG 59 cable up to 900 feet
Note: Automatic Gain and Automatic EQ circuits are built-in
BNC female 75 Ohm
Use RG 59 cable up to 900 feet
Note: Automatic Gain and Automatic EQ circuits are built-in
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
Used during the alignment process. Maximum value is displayed when
antenna is in the ideal position.
On when data is being received
On when data is being transmitted
On when DC operating power is present in the radio
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Section 2 . Installing the Equipment
Basic Safety
Guidelines
[Overview info]
The following general guidelines should always be followed when installing
or doing maintenance work on any electrical or radio equipment
?? Do not locate the transceiver near overhead power lines or other electric
light or power circuits, or where it can come into contact with such
circuits.
?? 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.
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Installing the Equipment
RF Exposure Limits
The CR45-A-53, CR45-A-58, and CR45-A-58L transceivers, used in
conjunction with 28, 31 and 37 dBi gain antennas, are to be used in point-topoint applications only. The transceivers can be provided with or without an
integral antenna. If the transceiver is provided without an integral antenna,
then antennas used for these transmitters shall be professionally installed on
permanent structures for outdoor operations. The installer is responsible for
ensuring that the systems using high-gain, directional antennas are used
exclusively for fixed, point-to-point operations.
The installer shall mount 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 customers' rooftops and
towers designated for fixed wireless applications. Table 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
CR45-A-53 5.3 GHz +2.5 dBm 28 dBi
CR45-A-58 5.8 GHz
5.8GHz
CR45-A-58L 5.8 GHz +1.8dBm 37 dBi
+6.5 dBm
+6.5 dBm
Antenna
Gain, DBi
31 dBi
28 dBi
MPE
Distance
1.5m (5 ft)
1.5m (5 ft)
1.5m (5 ft)
Antenna Warning
Label
The following label wording must be placed on the antenna and visible from
at least 1.5 meters (5 feet) away:
CAUTION: To comply with FCC RF exposure requirements, antennas used
for this device must be installed to provide a separation distance
of at least 15m(5 feet) from all persons to satisfy RF exposure
compliance.
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2–2
Installing the Equipment
Additional
Responsibilities
Installation
Checklist
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.
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.
[to be added]
Installation and
Verification
Procedures
After the antenna dish has been installed, follow these procedures to connect
radio:
1. Attach the radio on a permanent position within the reach of the R.F.
cable that connects between the radio and antenna.
2. Connect the R.F. cable between the radio and antenna.
3. Route the RX, TX, and POWER cables from the radio to the termination
point.
4. Connect the RX, TX, and POWER cables to the radio.
5. Secure the POWER SUPPLY unit at a desired location. Do not connect
the AC cable at this time.
6. Connect the RX, TX, and POWER cables to the POWER SUPPLY unit.
7. Connect the I/O data cables between the application device and POWER
SUPPLY unit. Application devices must generate and accept the DS-3
specified signals.
xxxxx, Ver 0.01
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Installing the Equipment
Verify Signal and
Adjust Antenna
After the CR45-A is positioned and cables connected, verify its ability to
receive and transmit signals. Use those signals to adjust antenna position.
1. Verify the presence of DS-3 signal at the POWER SUPPLY’s DATA IN
connector.
2. Connect the AC power cord to the source.
3. POWER indicator LED on the radio is lit.
4. TX LED on the radio is lit.
When nearside and far side equipment are prepared with power applied, start
the antenna alignment procedure as follows:
1. Point the far side and near side antennas toward each other.
2. Disconnect DATA IN & DATA OUT cables on the far end POWER
SUPPY unit.
3. Connect a 3.0 ft. coax cable between the DATA IN and DATA OUT
connectors on the far end POWER SUPPLY unit. This creates the loopback condition to the near end unit.
4. Adjust the near side antenna vertically, as well as horizontally while
observing the numeric display on the radio. Largest numeric value is
obtained when the antenna is properly adjusted. RX LED on the nearside
radio is now lit.
5. Remove the 3.0 ft. coax cable at the far-end POWER
6. RX LED on the radio is lit (far side radio must be in the transmit mode
with DS-3 signal input)
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Section 3 . Troubleshooting
xxxx, Ver. 0.01 2-1
Installing the Equipment
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