Siemens A53685 User Manual Download

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INSTALLATION & OPERATION

A53685 AIRLINK MARS

SOFTWARE DEFINED RADIO (SDR)

OCTOBER 2021

DOCUMENT NO. COM-00-21-05
VERSION A

Siemens Mobility, Inc.
One Penn Plaza
Suite 1100
New York, NY 10119-1101
1-800-793-SAFE

www.usa.siemens.com/rail-manuals

Summary of Contents for A53685

Page 1: ...K MARS SOFTWARE DEFINED RADIO SDR OCTOBER 2021 DOCUMENT NO COM 00 21 05 VERSION A Siemens Mobility Inc One Penn Plaza Suite 1100 New York NY 10119 1101 1 800 793 SAFE www usa siemens com rail manuals Copyright 2021 Siemens Mobility Inc All Rights Reserved ...

Page 2: ...liability or timeliness of any information contained in any translation of manual or product information from its original official released version in English and shall not be liable for any losses caused by such reliance on the accuracy reliability or timeliness of such information Any person or entity that relies on translated information does so at his or her own risk WARRANTY INFORMATION Siem...

Page 3: ...ipment into an outlet on a circuit different from that to which the receiver is connected Consult Siemens Customer Service for help Modifications not expressly approved by the manufacturer could void the user s authority to operate the equipment under FCC rules RF EXPOSURE WARNING This equipment complies with the FCC RF radiation exposure limits set forth for an uncontrolled environment This trans...

Page 4: ...C limits for human exposure to radio frequency radiation may depend not only on this equipment but also on whether the environments being assessed are being affected by radio frequency fields from other equipment which may add to the level of exposure Accordingly the overall exposure may be affected by radio frequency generating facilities that exist at the time the licensee s equipment is being i...

Page 5: ...bleshooting the equipment with electrical current present be aware of live circuits All equipment must be properly grounded and protected from lightning for safe operation DO NOT operate the transmitter of any radio unless RF connectors are secure andall connectors are properly terminated Heat sinks on the radio are to dissipate heat and must not be blocked or covered Equipment can become hot duri...

Page 6: ...vi COM 00 21 05 OCTOBER 2021 Version No A DOCUMENT HISTORY Version Release Date Sections Changed Details of Change A 10 28 21 Initial Release ...

Page 7: ...cifications 1 2 1 2 Ordering Information 1 4 2 INTRODUCTION 2 1 2 1 Summary of Operating Features 2 2 2 2 Mechanical Design 2 3 2 3 Electrical Design 2 4 2 3 1 Power Supply Unit PSU 2 5 2 3 2 Communications Base Board CBB 2 5 2 3 3 Radio Frequency Module RFM 2 5 2 3 4 Power Amplifier PA 2 6 2 3 5 Transmit Coupler 2 6 2 3 6 Transmit Receive Switch 2 6 2 3 7 Low Pass Filter LPF 2 6 2 3 8 System Stat...

Page 8: ... Connection 3 4 3 6 1 DC Power Supply Connection 3 4 3 6 2 Antenna System Connections 3 6 3 7 GPS Synchronization 3 6 3 7 1 Overview 3 6 3 7 2 GPS System 3 6 3 7 3 Internal GPS Module 3 6 3 7 4 GPS Antenna 3 7 3 7 5 System Cable Connections 3 8 3 7 6 Connection Summary 3 9 3 8 Post Installation Checklist 3 10 3 8 1 Applying Power 3 10 3 8 2 Verifying Proper Operation 3 10 4 TROUBLESHOOTING 4 1 5 C...

Page 9: ...10 5 10 Coordinated Configuration File Changes 5 11 6 OPERATION 6 1 6 1 Description 6 1 6 2 Base Station Operation 6 1 6 2 1 Base Station CLI 6 1 6 2 1 1 Basic CLI Use 6 2 6 3 Remote Station Cobalt CLI Operation 6 4 6 3 1 Remote Station CLI 6 5 6 3 1 1 Basic CLI Use 6 5 6 4 Temporary Operational Non Permanent Changes No Reboot Required 6 8 7 SOFTWARE UPDATES 7 1 ...

Page 10: ...Connectors 3 8 Figure 5 1 Console Port Cable USB to RJ 45 5 2 Figure 5 2 Startup Dialog User Name and Password 5 5 Figure 5 3 Entering Password 5 6 Figure 5 4 Main Session Window 5 6 Figure 5 5 Selecting a Higher Directory 5 7 Figure 5 6 Configuration File Example 5 8 Figure 6 1 Base Station LCD Screen Remote Station Connection 6 1 Figure 6 2 Successful admin Login 6 2 Figure 6 3 CLI Commands 6 2 ...

Page 11: ...ion Title Page Table 2 1 Airlink Mars Radio Subsystems 2 4 Table 3 1 Connection Summary 3 9 Table 4 1 Troubleshooting Matrix 4 1 Table 5 1 Console Configuration 5 3 Table 5 2 Base Station Configuration Overview 5 9 Table 6 1 Measurement Results Interpretation 6 8 ...

Page 12: ...SULT IN DEATH OR SERIOUS INJURY WARNINGS ALWAYS TAKE PRECEDENCE OVER NOTES CAUTIONS AND ALL OTHER INFORMATION CAUTION REFERS TO PROPER PROCEDURES OR PRACTICES WHICH IF NOT STRICTLY OBSERVED COULD RESULT IN A POTENTIALLY HAZARDOUS SITUATION AND OR POSSIBLE DAMAGE TO EQUIPMENT CAUTIONS TAKE PRECEDENCE OVER NOTES AND ALL OTHER INFORMATION EXCEPT WARNINGS NOTE Generally used to highlight certain infor...

Page 13: ...ge of the circuit board but avoid touching circuit traces or components Handle circuit boards by the edges only Never physically touch circuit board or connector contact fingers or allow these fingers to come in contact with an insulator e g plastic rubber etc When not in use place circuit boards in approved static shielding bags contact fingers first Remove circuit boards from static shielding ba...

Page 14: ...ub Frame ERP Effective Radiated Power The product of the antenna power transmitter power less transmission line loss times either the antenna power gain or the antenna field gain squared ESD Electro Static Discharge FCC Federal Communications Commission FDD Frequency Division Duplexing FEC Forward Error Correction FFR Fractional Frequency Reuse FM Frequency Modulation FSK Frequency Shift Keying A ...

Page 15: ... Power Amplifier PROM Programmable Read Only Memory PSU Power Supply Unit PtMP Point to MultiPoint QAM Quadrature Amplitude Modulation QoS Quality of Service QPSK Quadrature Phase Shift Keying A method of modulating a carrier signal in such a way that each cycle carries four bits of information RF Radio Frequency RFM Radio Frequency Module RS Remote Station RS232 EIA interface standard between DTE...

Page 16: ... SAW Surface Acoustic Wave SCADA Supervisory Control and Data Acquisition SDR Software Defined Radio SMA Sub Miniature version A SNMP Simple Network Management Protocol SSH Secure Shell SW Software TDD Time Division Duplexing TX Transmit ULSF Up Link Sub Frame ...

Page 17: ...ts Airlink Mars supports any frequency band from as low as 70 MHz up to 6 GHz Furthermore the Airlink Mars radio Hardware supports flexible channel sizes ranging from as narrow as 12 5 kHz up to 10 MHz Airlink Mars ability to operate a variety of software applications combined with its frequency and channel size independence minimizes future obsolesce allowing the operator to plan for a minimum 15...

Page 18: ...64 QAM FEC Convolutional Turbo Coding CTC with rates 1 2 2 3 3 4 5 6 Duplex Method TDD or Half Duplex FDD Topology Point to MultiPoint Point to Point Air Interface Protocol IEEE 802 16 2017 Modulation Coding Scheme Selection Dynamically Adjusted QOS Best Effort Real time polling service Unsolicited Grant Service CONNECTORS INTERFACES DC Input Phoenix 1778508 Grounding Terminal 10 32 Thread Screw S...

Page 19: ...ard Operating Temperature 40ºC to 70ºC SECURITY FEATURES AES 128 AES 256 Traffic Encryption Three way Handshake Over the Air Re keying OTAR EAP TLS Based Authentication with X 509 Certificate and RSA 4096 Public Key Encryption Hardware Based Secure Boot at the Root of the Chain of Trust NIST Certified Hardware Random Number Generator Memory Protection and Access Rights Limitation for Security Robu...

Page 20: ... Certification Pending 02 Base Station 100W 217 218 MHZ 802 16S FCC Certification Pending 03 Base Station 100W 450 MHZ 802 16S FCC Certification Pending 04 Base Station 100W 757 787 MHZ 802 16S FCC Certification Pending 05 Base Station 100W 896 935 MHZ 802 16S FCC Certification Pending NOTE FCC certification of the radios in these bands is pending Customers must have an FCC Special Temporary Autho...

Page 21: ...e Airlink radio network can be made up of Mars radios or used in conjunction with Siemens other hardware platforms to build a multi cell point to multipoint PtMP networks using IEEE 802 16 2017 wideband or narrowband technology Due to its design the radio can be used through a wide range of frequencies 70 MHz to 6 GHz using channel sizes ranging from 12 5 kHz to 10 MHz The radio can be configured ...

Page 22: ...ocally or remotely GPS connectivity for location and synchronization Frequency range from 70 MHz to 6 GHz Channel sizes from 12 5 kHz to 10 MHz Time Division Duplex TDD or FDD Half Duplex operation IEEE 802 16 20171 narrowband or wideband capability Wide operating temperature from 40 C to 70 C 1 IEEE 802 16 2017 uses channel sizes from 100 kHz to 10 MHz A revision to the standard known as IEEE 802...

Page 23: ..._____________________ 2 3 COM 00 21 05 OCTOBER 2021 Version No A 2 2 Mechanical Design The Mars radio is housed in a 19 rack mount enclosure It is not an outdoor enclosure If an outdoor installation is needed it needs to be installed in a NEMA 4 4X enclosure Figure 2 2 Airlink Mars Radio Dimensions ...

Page 24: ...k Diagram Table 2 1 Airlink Mars Radio Subsystems Subsystem Description Manufacturer PSU Power Supply Unit Ondas Networks CBB Communications Base Board Ondas Networks RFM Radio Frequency Module Ondas Networks PA Power Amplifier Empower RF Systems Coupler Transmit Coupler Mini Circuits TRS Transmit Receive Switch Ondas Networks LPF Low Pass Filter Ondas Networks SSD System Status Display Lumex RF A...

Page 25: ...wer LED 2 x 10 100 MB Ethernet RJ45 sockets Serial Data through an RJ45 socket Serial Console interface through an RJ45 socket GPS antenna connection The CBB includes a GPS receiver to provide a system and network synchronization using the 1 PPS signal and GPS data to provide the location time of day speed and heading information The CBB provides the TX signal directly to Power Amplifier The CBB h...

Page 26: ... and RX modes for Time Division Duplexing TDD and Half Duplex Frequency Division Duplexing HD FDD 2 3 5 Transmit Coupler The Mars radio platform uses the ZARC 25 551 High Power Signal Tap as a Coupler to monitor the TX signal and provide feedback to the RFM 2 3 6 Transmit Receive Switch The Mars Transmit Receive Switch TRS switches between TX and RX modes for Time Division Duplexing TDD and Half D...

Page 27: ...s not needed to minimize power consumption To avoid self interference the TDD frame structure i e the duration of the DLSF ULSF and the total gap is identical across the entire system Additionally the beginning of the TDD frame is synchronized to a 1 pulse per second PPS generated by a GPS receiver All BSs in the system transmit at the same time A BS and RS never transmit at the same time so they ...

Page 28: ... interferer s power is greater than the Airlink signal the gain in the receive chain needs to be reduced to avoid saturation The stronger the interferer the lower the receive gain As the receive gain is reduced the Airlink signal occupies a smaller portion of the analog to digital converter ADC amplitude range which reduces the resolution and increases the quantization noise until a level at which...

Page 29: ...ng network connections Certification is handled by the customer who may configure the AAA server authentication process The base station and remote device use role based authentication when based locally There are different levels of authentication within the NMS Viewer can view information about the radio equipment Technician can view configure upgrade and run diagnostics of radio equipment can a...

Page 30: ... cryptographic engines Airlink uses the Privacy and Key Management Protocol version 2 PKMv2 for secure key management transfer and exchange The authorization key is generated and is used to secure the 3 way handshake of the traffic key distribution The process is secured encrypted and authenticated through all stages using RSA 4096 Cipher based Message Authentication Code CMAC Hash based Message A...

Page 31: ...Installation section before beginning the actual installation NOTE For first time installers it is recommended to set up a base station and remote station in a lab environment connected to dummy loads to understand setup and configuration prior to installing radios in a remote environment This information is intended to serve as an overview for installing the Airlink Mars radio and its associated ...

Page 32: ...t installation It should be referred to for grounding and lightning mitigation during this installation Grounding and lightning protection are important during equipment installation as grounding issues and damage to equipment from lightning can cause significant issues if not doneproperly Grounding and lightning protection can be divided into the following categories Electrical Ground Ground wire...

Page 33: ... Physical Dimensions 3 5 3 Radio Grounding Guidelines The Mars Radio is equipped with a single ground lug located on the rear of the radio The ground post must be connected to earth ground Install at least a 12 AWG protective ground wire with 10 size ring lug to a safe grounding position 3 5 4 Mechanical Installation 3 5 4 1 Mounting Procedure Mounting brackets are provided for attaching the radio...

Page 34: ...e supplied with the radio The radio should be connected to a 36 to 60 VDC power supply The DC source must be capable of supplying 10 amps and is recommended to be on a dedicated circuit that is protected by a fuse or circuit breaker capable of 10 amps Ensure wire of appropriate size is used Tighten screw terminal locking screws with a screwdriver to prevent disconnection of plug from the socket Fi...

Page 35: ...g There is a combination Power LED Reset switch and a two position terminal socket on the front panel as shown in Figure 3 4 Figure 3 4 Power LED and Reset Button For PERMANENTLY CONNECTED EQUIPMENT a readily accessible power disconnect device should be incorporated external to the equipment For PLUGGABLE EQUIPMENT the power socket outlet should be installed near the equipment and should be easily...

Page 36: ...rview The radio employs optional GPS based timing to synchronize the operation of the network if necessary An optional L1 GPS antenna such as the Trimble Bullet III antenna or equivalent as noted in the following section can be ordered When used GPS information can be retrieved by the Command Line Interface CLI or SNMP interface 3 7 2 GPS System The GPS consists of an internal GPS module connected...

Page 37: ...er this interface Lower loss cable such as RG 8 can be used for extended length if needed The antenna should be installed with a clear view of the sky The base of the unit is threaded to allow it to be mounted on a hollow conduit Feature 3 3V 5 0V Prime Power 3 3V DV 10 5 0V DV 10 Power Consumption 20mA 30mA Gain 28dB 3dB 30dB 3dB Output Impedance 50Ω Frequency GPS L1 1575 42 1 023MHz VSWR 2 0 max...

Page 38: ...o various connections will be needed The connections are shown in Figure 3 7 Serial RJ45 8 pin socket wired using the Cisco interface specification for RS232 serial data Console RJ45 8 pin socket wired using the Cisco RS232 serial interface specification for console access Eth1 RJ45 8 pin socket for CAT5 6e Ethernet 10 100 Base T cable interface Eth2 RJ45 8 pin socket for CAT5 6e Ethernet 10 100 B...

Page 39: ...provided must meet electrical requirements and State and local code requirements for use application Installation by qualified personnel only Reset DC LED Power Indicator This is a dual purpose DC power reset switch with a built in LED power indicator GPS SMA female connector torqued down to 5 inch pounds with 5 16 open end wrench for an optional GPS antenna RF1 50 Ω 50Ω N Type female connector fo...

Page 40: ...ower Before applying power to the station make sure all cables are securely connected Turn on the DC circuit breaker or fuse that is supplying power to the radio 3 8 2 Verifying Proper Operation When the station is starting up initially there will be this message on the screen While this screen appears the radio is going through its startup menu and launching the configuration file After approxima...

Page 41: ...that the system relies on symbolic links to the desired configuration file Multiple configurations can be stored on each radio but only the one linked is active If the symbolic link is to the wrong configuration file then the unit will not connect Excessive Pathloss In a lab setup verify that the attenuation between the BS and the RS is set properly and does not exceed 90 dB Do not power on the ra...

Page 42: ...red Verify the orientation both horizontal and vertical of the antennas Check the TX power of each unit If both units are transmitting at maximum power then there is most likely an issue with the RF path Note that the BS actively controls the TX power of the RS so if the RS is transmitting at maximum power then that is an indication that the signal level is too low at the BS In this case there is ...

Page 43: ...nd learned by the remote radio during network entry and regular operation e g provisioning and Quality of Service certain elements are preconfigured in the remote radio There are two recommended methods of changing the configuration of the Airlink Mars radios Apollo preferred Siemens Graphic User Interface GUI Information on this is provided in aseparate manual WinSCP Manually uploading or editing...

Page 44: ...link radios may be accessed locally using the serial port as a console or remotely using SSH or WinSCP over an Ethernet connection as described in the following sections 5 3 Serial Port Console Access Console access to the radio is provided by the RJ45 8 pin Console port using a Cisco standard console USB to RJ45 cable as shown in Figure 5 1 Figure 5 1 Console Port Cable USB to RJ 45 ...

Page 45: ... is also used for status reporting which can make CLI use a challenge Wherever possible it is recommended that Ethernet access described later is used 5 4 Default Passwords and Change The default passwords are as follows user password operator operator100 user password admin admin100 user password root root100 Default passwords are changed as done in Linux To change any default password log in to ...

Page 46: ...sed 5 6 SSH Ethernet Access The base station radios support SSH and telnet for Ethernet access that is also password protected The user operator is limited to performance commands without access to configuration commands admin is limited to the CLI performance AND configuration commands while root provides unrestricted use Remote radios support SSH for Ethernet access which is password protected T...

Page 47: ...______________________________ 5 5 COM 00 21 05 OCTOBER 2021 Version No A 5 7 WinSCP WinSCP http www winscp net is an open source tool that provides powerful remote file management tools from a Windows environment 5 7 1 WinSCP Startup Dialog Figure 5 2 Startup Dialog User Name and Password ...

Page 48: ... Password 5 7 2 BS50000 File Structure The right side of the WinSCP screen shows the BS5000 files Within the root directory the following subdirectories are shown Figure 5 4 Main Session Window Because this is a windows environment double clicking on the directory you want to move to will bring you to the subdirectory The BS5000 config files can be found in the BS5000 subdirectory ...

Page 49: ...___________________________________________________________________________________________ 5 7 COM 00 21 05 OCTOBER 2021 Version No A Double clicking on will bring you to a higher directory Figure 5 5 Selecting a Higher Directory ...

Page 50: ... then be edited Figure 5 6 shows an example of a configuration file Figure 5 6 Configuration File Example 5 7 3 WinSCP Actions There are three methods used to change the configuration using WinSCP 1 Upload and relink Upload a new configuration file and relink the file preferred 2 Carefully edit another preexisting configuration file and relink the file 3 Edit the symbolic link file which edits the...

Page 51: ...ase Station BS5000 radio Table 5 2 Base Station Configuration Overview Filename Function root BS5000 start_bs sh Base Station Start up Script root BS5000 bs_config xml Application Configuration File or Link root BS5000 BS_snmpbuild snmpd conf SNMP Configuration file root BS5000 MSProfiles Service Flow Traffic Definitions root BS5000 serviceprofiles Quality of Service Definitions start_bs sh This i...

Page 52: ...e as noted below 2 Carefully edit a preexisting configuration file and relink the file This method is a little more involved as it will require the user to selectively edit an existing configuration file and then delete the old symbolic link and create a new link to the modified file It should be noted that syntax errors and incorrect parameter selection and range can disable a radio 3 Edit the sy...

Page 53: ...xml root BS5000 root BS5000 ls l bs_config xml Show new Symbolic link root BS5000 root BS5000 ls l bs_config xml lrwxrwxrwx 1 root root 21 Jan 2 05 50 bs_config xml bs_config xml_1M_asym 5 10 Coordinated Configuration File Changes The recommended process is to first make changes in the base station but to delay rebooting the radio until the equivalent changes have been made in the remote radio s T...

Page 54: ...CONFIGURATION _________________________________________________________________________________________________________ 5 12 COM 00 21 05 OCTOBER 2021 Version No A This Page Intentionally Left Blank ...

Page 55: ... Station Operation The basic functionality of the base station can be determined from the LCD screen If a remote station is connected to the base station a series of LCD screens will be cycled in succession as shown in Figure 6 1 Figure 6 1 Base Station LCD Screen Remote Station Connection 6 2 1 Base Station CLI The base station CLI includes many features for manipulating key configuration paramet...

Page 56: ...in Figure 6 2 Figure 6 2 Successful admin Login To avoid a conflict between simultaneous updates only a single CLI instance is supported per radio Consequently it is important to exit any session gracefully using the exit command If a session is abruptly closed further CLI access may not be possible until the system is restarted CLI commands can be shown by typing a tab at the prompt as shown here...

Page 57: ...OM 00 21 05 OCTOBER 2021 Version No A Press the tab key for more options Figure 6 5 Additional Options To view current system performance type measurement report all Figure 6 6 View Current System Performance If known all of the CLI commands can be typed together on a single line Figure 6 7 Show All BS Measurement Report ...

Page 58: ... version 6 3 Remote Station Cobalt CLI Operation The basic functionality of Cobalt software operating on a remote radio can be determined from the LCD screen The LCD displays the state of the remote station by cycled through its status screens It shows scanning when it is searching for a base station and connected with operational details when it is connected to the base station shown in Figure 6 ...

Page 59: ...eters however it is recommended that it be used primarily for obtaining measurement and status information as described below 6 3 1 1 Basic CLI Use Use SSH to login to the Cobalt admin user with the password After successful login the following prompt will be displayed admin cobalt Figure 6 9 Remote Station Logon Screen This is the admin CLI All commands are nested and can be listed by typing a ta...

Page 60: ..._____________________________________________________________ 6 6 COM 00 21 05 OCTOBER 2021 Version No A As an example to see a connected measurement report for the ms type show and tab as shown in Figure 6 11 Figure 6 11 View Connected Measurement Report ...

Page 61: ...____________________________________ 6 7 COM 00 21 05 OCTOBER 2021 Version No A These are the CLI commands available for the RS If the command show ms measurement report is typed then the measurement report is displayed as shown in Figure 6 12 Figure 6 12 Measurement Report Screen ...

Page 62: ... 36 MS Tx power in dbm Current UL FEC Code 2 Uplink modulation Current DL FEC Code 6 Downlink modulation Power Control mode Closed Loop Power control mode open loop closed loop AMC Bands Effective CINR Physical CINR Band 0 28 dB 28 dB Sub channel 0 carrier to noise ratio Band 1 28 dB 28 dB Sub channel 1 carrier to noise ratio Band 2 28 dB 28 dB Sub channel 2 carrier to noise ratio 6 4 Temporary Op...

Page 63: ...ulation code which can be 0 1 2 3 5 6 7 Note The FEC code 4 can be set but the max fec code will be 3 2 Set Base Station bs Transmit Power Type config bs rf eirp 24 as shown Where bs base station 24 max transmit power 39 to 36 Set Maximum Remote Station Transmit Power Type Config ms radio maxtxpower 24 as shown Where ms remote station 24 the maximum transmit power for the remote range is 39 to 43 ...

Page 64: ...mote Station transmit power Type Config ms radio mintxpower 20 as shown Where ms remote station 20 min transmit power range is 39 to 43 dBm 3 Change Receive Gain for the Base Station Type config bs rf rxgain 60 as shown Where bs base station 60 receive gain 0 to 76 For the Remote Station Type config ms radio rxgain 55 as shown Where ms remote station 55 receive gain 0 to 78 ...

Page 65: ...ectory in the radio Must be copied to the tmp directory note that tmp directory iserased on a reboot Note that there are different versions for the base station and the remote station The base station begins with BS FM and the remote station begins with MS FM Each customer will have software tailored to their requirements and as such the software will have a customer ID embedded in the name Softwa...

Page 66: ...No A Over the Air Update This is a delta package that contains only the changes to the software and can be done remotely over the air New configuration files This is a change to configuration files and can be done locally or remotelyas described in this document using Apollo or WinSCP Specific details of software upgrades will be provided in the release package ...

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