4RF Aprisa SR+ Technical specifications

April 2013
Version 1.0.0.03 (for General Availability Release in October 2013)

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Aprisa SR+ Product Description
Copyright
Copyright © 2013 4RF Limited. All rights reserved.
This document is protected by copyright belonging to 4RF Limited and may not be reproduced or
republished in whole or part in any form without the prior written permission of 4RF Limited.
Trademarks
Aprisa and the 4RF logo are trademarks of 4RF Limited.
Windows is a registered trademark of Microsoft Corporation in the United States and other countries. Java
and all Java-related trademarks are trademarks or registered trademarks of Sun Microsystems, Inc. in the
United States and other countries. All other marks are the property of their respective owners.
Disclaimer
Although every precaution has been taken preparing this information, 4RF Limited assumes no liability for
errors and omissions, or any damages resulting from use of this information. This document or the
equipment may change, without notice, in the interests of improving the product.
RoHS and WEEE compliance
The Aprisa SR+ is fully compliant with the European Commission’s RoHS (Restriction of Certain Hazardous
Substances in Electrical and Electronic Equipment) and WEEE (Waste Electrical and Electronic Equipment)
environmental directives.
Restriction of hazardous substances (RoHS)
The RoHS Directive prohibits the sale in the European Union of electronic equipment containing these
hazardous substances: lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls (PBBs),
and polybrominated diphenyl ethers (PBDEs).
4RF has worked with its component suppliers to ensure compliance with the RoHS Directive which came
into effect on the 1st July 2006.
End-of-life recycling programme (WEEE)
The WEEE Directive concerns the recovery, reuse, and recycling of electronic and electrical equipment.
Under the Directive, used equipment must be marked, collected separately, and disposed of properly.
4RF has instigated a programme to manage the reuse, recycling, and recovery of waste in an
environmentally safe manner using processes that comply with the WEEE Directive (EU Waste Electrical
and Electronic Equipment 2002/96/EC).
4RF invites questions from customers and partners on its environmental programmes and compliance with
the European Commission’s Directives ([e-mail]).

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Aprisa SR+ Product Description
Compliance General
The Aprisa SR+ radio predominantly operates within frequency bands that require a site license be issued
by the radio regulatory authority with jurisdiction over the territory in which the equipment is being
operated.
It is the responsibility of the user, before operating the equipment, to ensure that where required the
appropriate license has been granted and all conditions attendant to that license have been met.
Changes or modifications not approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
Equipment authorizations sought by 4RF are based on the Aprisa SR+ radio equipment being installed at a
fixed location and operated in point-to-multipoint or point-to-point mode within the environmental profile
defined by EN 300 019, Class 3.4. Operation outside these criteria may invalidate the authorizations and /
or license conditions.
The term ‘Radio’ with reference to the Aprisa SR+ User Manual, is a generic term for one end station of a
point-to-multipoint Aprisa SR+ network and does not confer any rights to connect to any public network or
to operate the equipment within any territory.
Compliance European Telecommunications Standards Institute
ETSI compliance pending for the Aprisa SR+.
Compliance Federal Communications Commission
FCC compliance pending for the Aprisa SR+.
Compliance Industry Canada
IC compliance pending for the Aprisa SR+.

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Aprisa SR+ Product Description
RF Exposure Warning
WARNING:
The installer and / or user of Aprisa SR+ radios shall ensure that a separation distance
as given in the following table is maintained between the main axis of the terminal’s
antenna and the body of the user or nearby persons.
Minimum separation distances given are based on the maximum values of the
following methodologies:
1. Maximum Permissible Exposure non-occupational limit (B or general public) of
47 CFR 1.1310 and the methodology of FCC’s OST/OET Bulletin number 65.
2. Reference levels as given in Annex III, European Directive on the limitation of
exposure of the general public to electromagnetic fields (0 Hz to 300 GHz)
(1999/519/EC). These distances will ensure indirect compliance with the
requirements of EN 50385:2002.
Frequency (MHz)
Maximum Power
(dBm)
Maximum Antenna
Gain (dBi)
Minimum Separation
Distance
(m)
300
+ 37
15
2.5
330
+ 37
15
2.5
400
+ 37
15
2.5
470
+ 37
15
2.3
520
+ 37
15
2.2
850
+ 37
28
7.7
960
+ 37
28
7.2

Contents | 5
Aprisa SR+ Product Description
Contents
1. Introduction................................................................................ 9
The 4RF Aprisa SR+ Radio ....................................................................... 9
Product Overview ...............................................................................10
Network Coverage and Capacity .......................................................10
Automatic Registration ..................................................................10
Remote Messaging........................................................................10
Product Features .........................................................................11
Functions ..................................................................................11
Performance ..............................................................................11
Usability ...................................................................................11
Architecture......................................................................................12
Security ...........................................................................................12
Interfaces.........................................................................................13
Antenna Interface ........................................................................13
Ethernet Interface .......................................................................13
RS-232 Interface..........................................................................13
USB Interfaces ............................................................................13
Alarm Interface...........................................................................13
AUX Interface .............................................................................13
Mounting..........................................................................................14
DIN Rail Mounting ........................................................................14
Rack Shelf Mounting .....................................................................16
Wall Mounting.............................................................................16
2. Product Options ......................................................................... 17
Interface Ports...................................................................................17
Protected Station ...............................................................................18
Operation..................................................................................18
Switch Over ........................................................................19
Configuration Management ......................................................19
Data Driven Protected Station.................................................................20
Operation..................................................................................20

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Aprisa SR+ Product Description
3. Specifications ............................................................................ 21
RF Specifications ................................................................................21
ETSI Compliant............................................................................21
Frequency Bands ..................................................................21
Channel Sizes ......................................................................21
Transmitter.........................................................................22
Receiver ............................................................................24
Modem ..............................................................................24
Data Payload Security ............................................................24
Interface Specifications ........................................................................25
Ethernet Interface .......................................................................25
RS-232 Asynchronous Interface.........................................................25
Protection Switch Specifications.......................................................26
Power Specifications............................................................................27
Power Supply..............................................................................27
Power Consumption ......................................................................27
Power Dissipation ........................................................................28
General Specifications..........................................................................29
Environmental ............................................................................29
Mechanical ................................................................................29
Compliance................................................................................29
4. Management ............................................................................. 31
SuperVisor ........................................................................................31
Viewing the Aprisa SR+ Terminal Settings ............................................32
Configuring the Aprisa SR+ Terminal Details .........................................33
Configuring the Aprisa SR+ RF Network Details ......................................33
Configuring the Aprisa SR+ Radio Settings ............................................34
Command Line Interface .......................................................................35
SNMP ..............................................................................................35
LED Display Panel ...............................................................................36
Normal Operation ........................................................................36
Single Radio Software Upgrade.........................................................37
Network Software Upgrade .............................................................37
Test Mode .................................................................................37
5. Applications .............................................................................. 38
Basic point-to-multipoint application ........................................................38
Advanced point-to-multipoint application with repeater .................................39
Multi-interface point-to-multipoint application ............................................40
6. Architecture ............................................................................. 41
Product Description.............................................................................41
Physical Layer.............................................................................41
Data Link Layer / MAC layer ............................................................41
Channel Access ....................................................................41
Hop by Hop Transmission.........................................................42
Network Layer ............................................................................43
Packet Routing.....................................................................43
Security ...........................................................................................44
Product Architecture ....................................................................45
Aprisa SR+ Block Diagram ...............................................................46

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7. Contact Us ................................................................................ 47