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MDS 05-6906A01, Rev. R 

TD220MAX Technical Manual 

iii 

Copyright and Trademark 

This manual and all software described herein is protected by Copyright: 2018 GE MDS, LLC. All 
rights reserved. GE MDS, LLC reserves its right to correct any errors and omissions in this 
publication. 

RF Safety Notice (English and French) 

Concentrated energy from a directional antenna may pose a health hazard 
to humans. Do not allow people to come closer to the antenna than the 
distances listed in the table below when the transmitter is operating. More 
information on RF exposure can be found online at the following website: 

www.fcc.gov/oet/info/documents/bulletins

 

Concentré d'énergie à partir d'une antenne directionnelle peut poser un 
risque pour la santé humaine. Ne pas permettre aux gens de se rapprocher 
de l'antenne que les distances indiquées dans le tableau ci-dessous 
lorsque l'émetteur est en marche. Plus d'informations sur l'exposition aux 
RF peut être trouvé en ligne à l'adresse suivante: 

www.fcc.gov/oet/info/documents/bulletins

 

Antenna Gain vs. Minimum Safety Distance 

(Based upon a 50% Duty Cycle, 0 dB Feedline Loss) Uncontrolled Environment Exposure limits 

 

 

Fixed/Mobile Antenna Gain 

 

0-6 dBi 

6-10 dBi 

10-16.5 dBi 

Safety Distance 

1.78 meters 

2.82 meters 

5.01 meters 

 

FCC Part 15 Notice 

Operation is subject to the following two conditions: (1) this device may not cause harmful 
interference, and (2) this device must accept any interference received, including interference that 
may cause undesired operation. Any unauthorized modification or changes to this device without 
the express approval of the manufactu

rer may void the user’s authority to operate this device. 

Furthermore, this device is intended to be used only when installed in accordance with the 
instructions outlined in this manual. 

Failure to comply with these instructions may void the user’s 

authority to operate this device. 

Servicing Precautions 

When servicing energized equipment, be sure to wear appropriate Personal Protective 
Equipment (PPE). During internal service, situations could arise where objects accidentally 
contact or short circuit components and the appropriate PPE would alleviate or decrease the 
severity of potential injury. When servicing radios, all workplace regulations and other applicable 
standards for live electrical work should be followed to ensure personal safety.  

Manual Revision and Accuracy 

This manual was prepared to cover a specific version of firmware code. Accordingly, some 
screens and features may differ from the actual unit you are working with. While every reasonable 
effort has been made to ensure the accuracy of this publication, product improvements may also 
result in minor differences between the manual and the product shipped to you. If you have 
additional questions or need an exact specification for a product, please contact GE MDS using 
the information at the back of this guide. In addition, manual updates can be found on our web 
site at www.gemds.com 

Summary of Contents for MDS TD220MAX

Page 1: ...MDS TD220MAX Robust Communications for Positive Train Control MDS 05 6906A01 Rev R DECEMBER 2018 Technical Manual ...

Page 2: ... This page intentionally left blank ...

Page 3: ...1 Adapter Board 8 3 7 USB 9 3 8 Antenna Connector 10 4 0 STEP BY STEP INSTALLATION 11 4 1 Logging On 11 4 1 1 Serial Console 11 4 1 2 Telnet Console 12 4 2 Initial Startup Checkout 12 4 3 Upgrade the Firmware 12 4 3 1 Introduction 12 4 3 2 Installing TD220MAX Firmware by TFTP 13 4 3 3 Reprogramming Procedure 13 4 4 Set Up a GPS Base Unit 13 4 5 Set Up a PTP Base Unit 14 4 6 Set Up an OTA Mobile Un...

Page 4: ...dios Only 34 5 8 9 Clock Source Status Menu Base Radios Only 34 5 9 Device Information Menu 35 5 9 1 Device Names Submenu 36 5 10 Maintenance Tools Menu 37 5 10 1 Reprogramming Menu 38 5 10 2 Configuration Scripts Menu 39 5 10 3 Ping Utility Menu 40 5 10 4 Authorization Codes Menu 40 5 10 5 Radio Test Menu 41 5 11 Communications Manager Menu 42 5 11 1 CM Version Menu 43 5 11 2 CM Provisioning Menu...

Page 5: ...ce and 2 this device must accept any interference received including interference that may cause undesired operation Any unauthorized modification or changes to this device without the express approval of the manufacturer may void the user s authority to operate this device Furthermore this device is intended to be used only when installed in accordance with the instructions outlined in this manua...

Page 6: ...nsure the transmitter has been disabled 3 Depending upon the application and the gain of the antenna the total composite power could exceed 90 watts EIRP For fixed mobile configuration the distances in the table below must be followed FCC Compliance Notice This device is offered as a licensed transmitter per FCC Parts 80 90 and 95 It is approved for use under the following conditions Changes or mo...

Page 7: ... long haul coverage Cost effective solution with no software license or maintenance fees Optimized TDMA MAC supports single frequency operation reducing spectrum license requirements Provides patented Forward Error Correction scheme for robustness in high speed rail applications Internal or external Communications Manager available Provides Ethernet interface for use with local or remote controlle...

Page 8: ...pter Custom MDS serial converter 73 2434A02 DB25 Ribbon Cable 6 inch DB25 straight cable to connect from the radio to the adapter board 03 3828A01 DB25 Adapter Kit Contains adapter board I O cable serial cable ribbon cable and DB9 adapters 03 4758A03 1 3 40 Watt Power Amplifier Figure 2 220 eNETL2T U Power Amplifier The ENETL2T U is an RF power amplifier designed for use in the 216 222 MHz frequen...

Page 9: ...os configured for GPS timing must be connected to an external GPS unit to receive NMEA sentence information and the PPS signal Radios configured for PTP timing will interact with a PTP Grandmaster Clock over the Ethernet port using IEEE 1588 PTPv2 Radios configured for OTA timing use messages received wirelessly in the first timeslot of each second to maintain timing With its time slot definition ...

Page 10: ...n all cases Adequate and stable primary power An efficient and properly installed antenna system Ethernet connection to local network Proper connections to a time source PTP GPS Over The Air 3 1 Chassis Dimensions Figure 4 shows the external chassis dimensions of the TD220MAX Transceiver Figure 4 Transceiver Dimensions 3 2 Mounting Bracket Options The transceiver is normally provided with flat mou...

Page 11: ...ting Once the DIN bracket is attached to the radio it allows for quick installation and removal of the radio from its mounting rail without the need for tools The DIN Rail bracket attaches to the unit s case along the left side of the transceiver DB25 connector side with two screws Ensure that the pull tab is located towards the back of the radio The entire assembly then attaches to the mounting r...

Page 12: ... as shown in Figure 6 below is shipped providing the matching power connector on a 3 foot power cable Ensure to tighten the connector securely to the radio A surge protection device such as a Transtector 1101 624 should be employed Figure 6 DC Power Cable P N 03 1846A02 NOTE The radio is designed for use in negative ground systems only Consult the following table to determine how much current is r...

Page 13: ...ing all ground leads as short as possible Normally the transceiver is adequately grounded if the supplied flat mounting brackets are used to mount the radio to a well grounded metal surface If the transceiver is not mounted to a grounded surface it is recommended that a safety ground wire be attached to one of the mounting brackets or a screw on the transceiver s case The use of a lightning protec...

Page 14: ...5 ETH_TX_L Output Ethernet 16 ETH_RX_H Input Ethernet 17 ETH_RX_L Input Ethernet 18 EXT_KEY Output Reserved Power Amplifier 19 EXT_DET Input Reserved Power Amplifier 20 COM2_DTR Input GPS NMEA Port 21 Not Connected N A Reserved 22 GPS_PPS_L Input Not Connected 23 GPS_PPS_H Input TTL level 1PPS signal input 0 to 5 VDC nominal 24 COM1_RXD Input Console 25 COM1_TXD Output Console 3 6 1 Adapter Board ...

Page 15: ...USB standard This port is provided for features such as logging STFP messages to text files on a memory stick Consult GE MDS for information on this feature The pinout for this connector is given in the table below Table 5 USB Port Pinout Pin Signal Name Description 1 PC_USB_ 5V 5 VDC 2 USBD USB Data Minus 3 USBD USB Data Plus 4 GROUND Ground PPS Connector Ethernet RJ45 COM 2 RJ45 Not Used COM 1 R...

Page 16: ...1 Rev R 3 8 Antenna Connector The Antenna Connector is a type N female connector with 50 Ohm characteristic impedance A suitable lightning arrestor such as a Polyphaser VHF50HN should be employed when indicated by applicable standards or codes ...

Page 17: ...ection The serial console is typically used to configure the network parameters prior to connecting to the radio via Telnet remotely Each radio is assigned a default IP Address a Netmask and a Gateway IP Address These are as follows IP Address 192 168 1 1 IP Netmask 255 255 255 0 IP Gateway 0 0 0 0 The IP Address and Netmask should be chosen carefully The radio will network directly with other equ...

Page 18: ... telnet functions login to the radio 4 2 Initial Startup Checkout In service operation of the transceiver is completely automatic Once the unit has been properly installed and configured as described above operator actions are limited to observing the front panel LED indicators for proper operation If all parameters are correctly set operation of the radio can be started by following these steps 1...

Page 19: ... o Firmware Filename Name of the file TDM krmd X_Y_Z mpk to be pulled from the TFTP server holding the firmware file 5 Select Retrieve File to start the reprogramming and receive the firmware file through the TFTP server NOTE The uploaded firmware image file replaces the inactive image file and will be automatically verified 6 Check the FW version shown for the inactive image to verify that the do...

Page 20: ... for the Base to match with the settings on the Grandmaster Clock b If Telecom profile is selected in step a set PTP Unicast Master to the IP address of the Grandmaster Clock 4 Go to the System Configuration Menu a Set the timing source to PTP and allow the radio to reboot 5 Logging in again after the reboot verify that the radio s Device Status is OPERATIONAL as shown on the Starting Information ...

Page 21: ... when a data message must be received from the Communication Manager For most cases the default value of 3 should suffice 6 Go to the Ping Utility Menu Under the Maintenance Tools Menu a Verify the Ethernet Link using the Ping utility 7 Ensure at least one base is present in the neighborhood of this radio so that it can detect beacons and synchronize timing 8 Begin sending STFP data 9 Verify the T...

Page 22: ...th the administrator user name and password When logged in the Starting Information Screen is displayed Figure 10 Starting Information Screen Device Name User configured name for this radio Set this from the Device Names menu IP Address IP address for this radio Set this from the IP Configuration menu Device Status This is a display of the status of the radio and can be the following Initializing ...

Page 23: ...onfiguration Tools to configure the radio s frequencies RF power and other radio specific parameters GPS Configuration Tools to configure the radio s GPS NMEA and PPS connections PTP Configuration Tools to configure the Precision Time Protocol PTP settings Security Configuration Tools to configure the security services available with the transceiver s environment Statistics Logging Tools to obtain...

Page 24: ...of the unit s Ethernet port 5 2 1 IP Configuration Menu Figure 13 IP Configuration Menu IP Address The IPv4 address that this radio will use for its Ethernet interface Any valid IP address 192 168 1 2 IP Netmask The IPv4 local subnet mask Any valid IP netmask 255 255 255 0 IP Gateway The IPv4 address of the gateway that will pass traffic from the radio s subnet to nodes on other networks Any valid...

Page 25: ...nd 30 alphanumeric characters SNMP Mode The mode of operation of the SNMP Agent Choices are disabled v1_only v2_only v3_only v1 v2 and v1 v2 v3 If the mode is disabled then the Agent will not respond to any SNMP traffic If the mode is v1_only v2_only or v3_only then the Agent will only respond to that version of SNMP traffic If the mode is v1 v2 or v1 v2 v3 then the Agent will respond to the speci...

Page 26: ... or PTP GPS PTP GPS w PTP fallback PTP w GPS fallback OTA OTA Send OTA Beacon Base Radios Only This parameter requests the radio to transmit beacons in the first timeslot of each second when no message is received from the Communication Manager for the time slot Beacons are required to maintain OTA timing of mobiles disabled enabled disabled STFP Configuration Access the STFP Configuration menu to...

Page 27: ... to receive STFP messages from the Communication Manager 0 65535 50011 STFP Tx Mcast Address This is the IP Address of the Communication Manger Any valid IP address 192 168 143 19 STFP Transmit Port This is the IP port used by the Communication Manager to receive STFP messages from the radio 0 65535 51011 STFP Epoch Size This is the number of seconds constituting an epoch Valid values are 1 2 3 4 ...

Page 28: ...ing This parameter is ignored once an STFP message has been received Receive Frequency The initial that the radio uses for receiving over the air transmissions upon booting 216 00625 221 9875 MHz 220 106250 NOTE STFP messages specify the frequency to be used when receiving This parameter is ignored once an STFP message has been received Output Power The RF Output Power from which the radio transmi...

Page 29: ...ve Pulse or Active Low Negative Pulse Negative Pulse Positive Pulse Negative Pulse Use Legacy GPS Timing Enable to allow the radio to work with existing legacy TD220X or TD220MAX systems Disable in new deployments so that GPS Bases will work seamlessly with PTP units enabled disabled disabled NOTE A mobile radio will transition from a system where the Legacy GPS Timing is enabled to a system where...

Page 30: ...address of the PTP grandmaster clock which the radio will send PTP messages when using the ITU T G 8265 1 Telecom profile Any valid IP address 192 168 1 1 PTP Unicast Lease The time in seconds for the lease to the grandmaster clock before requesting a new lease 60 1000 300 seconds PTP Unicast Event Rate Controls how many requests are sent between the grandmaster clock and the radio For cases where...

Page 31: ...hat allows modification of the admin guest and integrator logins SNMP Mode The mode of operation of the SNMP Agent Choices are disabled v1_only v2_only v3_only v1 v2 and v1 v2 v3 If the mode is disabled then the Agent will not respond to any SNMP traffic If the mode is v1_only v2_only or v3_only then the Agent will only respond to that version of SNMP traffic If the mode is v1 v2 or v1 v2 v3 then ...

Page 32: ...nge the default value of the passwords for security However once passwords have been changed they can never return to the default values unless the radio is sent back to GE MDS for service Console Telnet Lockout Security TD220MAX release 1 2 15 introduces a lockout on serial and telnet console logins after repeated attempts fail If an invalid login attempt is repeated 3 times on either console typ...

Page 33: ...ver the air Ethernet Packet Statistics Access the Ethernet Packet Statistics Menu to view the number of messages passed via Ethernet Event Log Access the Event Log Menu to view the radio s log of system events and alarms GPS Status Base Radio Only Access the GPS Status Menu to view the satellite fix status and the radio s location coordinates Clock Source Status Base Radio Only Access the Clock So...

Page 34: ...ddress to send UDP messages for logging STFP traffic Any valid IP address 192 168 1 1 STFP Log Server Port The IP port number to send UDP messages for logging STFP traffic 0 65535 777 Transmitter Serial Number Enabling this feature will put the serial number of the transceiver space permitting in the over the air message so the receiver can identify the transmitter for each message via the STFP lo...

Page 35: ...hich the radio detected an error that could not be compensated for using forward error correction This will match the number of STFP error messages generated by the radio Tx Last Frequency The frequency of the last message transmitted Tx Last Power The power level of the last message transmitted Tx Payload Bytes The number of bytes for all packets containing payload transmitted over the air Tx Dro...

Page 36: ...ets to be transmitted over the air that were dropped by the radio due to a payload length that was too long The maximum payload length is 133 without FEC 117 with FEC Bad Freq The number of packets to be transmitted over the air that were dropped by the radio due to an invalid RX or TX frequency Either the frequency was outside of the frequency range of the radio 216 00625 to 221 9875 MHz or the f...

Page 37: ...er of bytes for all packets received over Ethernet Bytes Sent The number of bytes for all packets transmitted over Ethernet Packets Dropped The number of packets that were dropped due to the Ethernet interface being busy Receive Errors The number of messages received over Ethernet that did not decode properly Lost Carrier Detected The number of times a message could not be sent over Ethernet becau...

Page 38: ...transfer of the historical list of the radio s events and alarms from the last clearing to the present Event Log Host Address The IP Address of the TFTP server to send the event log to Any valid IP address 0 0 0 0 Event Log Filename The filename on the server for the event log default eventlog txt Transfer Options Access the Transfer Options menu to manage transfer characteristics Syslog Server Ad...

Page 39: ... Besides the cursor keys indicated the letter keys u d p n h and e may be used for navigating U p D own P g Up Pg D n H ome and E nd 5 8 7 Transfer Options Submenu Figure 32 Transfer Options Submenu TFTP Timeout Timeout in seconds for a TFTP connection or transfer operation 10 120 seconds 30 seconds TFTP Block Size Block size in bytes for TFTP transfers 512 1024 2048 4096 8192 bytes 1024 bytes ...

Page 40: ...e GPS receiver Latitude Current Latitude reported by the GPS receiver Longitude Current Longitude reported by the GPS receiver Altitude Current Altitude reported by the GPS receiver 5 8 9 Clock Source Status Menu Base Radios Only Figure 34 Clock Source Status Menu Timing Source The value of the System Configuration Timing Source setting Active Timing Source The currently active timing source Switc...

Page 41: ...e clock Mobile Time The time from the active timing source Base or real time clock Mobile Date Format Change how the date and time are displayed Generic US European Generic Console Baud Rate The serial port rate the console will communicate at 1200 2400 4800 9600 19200 38400 57600 115200 19200 bps UTC Time Offset The local offset from UTC time set this to display the time in the event log and conf...

Page 42: ... for this radio 40 characters max Device Name Contact Free form field to indicate who to contact in case the radio needs service 40 characters max Contact Location Free form field to describe the site at which the radio is installed 40 characters max Location Description Free form field to enter details describing this radio 40 characters max Description ...

Page 43: ...ipts Access the Configuration Scripts submenu to save and restore the radio s configuration to and from a text file via a TFTP server Ping Utility Access the Ping Utility submenu to verify Ethernet communications with one or more hosts Authorization Codes Access the Authorization Codes submenu to enable certain enhanced features Radio Test Submenu for running built in radio tests like force key or...

Page 44: ... Options menu to manage transfer characteristics See Transfer Options Submenu for details Retrieve File Command the radio to request the firmware image from the TFTP server Note that the retrieved file will be written to the inactive image Image Verify Command the radio to perform a check of the firmware image in memory Image Copy Command the radio to copy the active firmware image to the inactive...

Page 45: ...and the radio to send the configuration file to the TFTP server Exporting a configuration file saves the radio s settings as a text file The file includes some read only settings to help identify different radios Password settings are not exported for security reasons but may be imported These are not exported for security Upon import the radio will parse the configuration file for changes Any rea...

Page 46: ...to send 0 4294967295 4 Packet Size The number of bytes each test message will contain 0 65535 32 Ping Command the radio to begin the ping test 5 10 4 Authorization Codes Menu Figure 41 Authorization Codes Menu Authorization Key Enter an alphanumeric key to enable features on this device Authorized Features The status of the features authorized for this device NOTE Contact GE MDS to obtain an autho...

Page 47: ...25 MHz Test Receive Frequency The receive test frequency 216 00625 221 9875 218 25 MHz Output Power The test output power 2 25 W 2 Test to Run The type of test to run Receive Force Key Poll Base Mobile only Poll Mobile Base only Receive RSSI Displays the RSSI of the type of test being run NOTE All STFP communication with the radio will be ignored while the Radio Test Menu is displayed STFP process...

Page 48: ...rmware revision CM Provisioning Access the menu to manage provisioning files for the Communications Manager CM Configuration Access the menu to manage the configuration files for the Communications Manager CM Process Status Access the menu to view the status of some of the radio s processes for debugging purposes CM Log Access the menu to view logs from the Communications Manager for debugging pur...

Page 49: ...he IP address of the TFTP server used for provisioning file transfers Any valid IP address 127 0 0 1 Filename The filename of the provisioning file to manage 40 characters long blank Transfer Options Access the Transfer Options menu to manage transfer characteristics See Transfer Options Submenu for details Manage File Provides options to manage a file Options include Add Cksum checksum Delete Sen...

Page 50: ...the Transfer Options menu to manage transfer characteristics See Transfer Options Submenu for details Manage File Provides options to manage a file Options include Add Cksum Checksum Delete Link Rename Send and View CM Configuration File List Displays configuration files installed on the radio 5 11 4 CM Process Status Menu Figure 47 CM Process Status Menu This menu shows the state of certain proce...

Page 51: ... 127 0 0 1 Filename The filename of the log file to manage 40 characters length Transfer Options Access the Transfer Options menu to manage transfer characteristics See Transfer Options Submenu for details Manage File Provides options to manage a file Options include Add Cksum Checksum Delete Send and View CM Log File List Displays the logs available to be viewed to assist in debugging ...

Page 52: ...y SNMP Trap EVENT_IPADDR IP Address Invalid ipAddress 1 EVENT_MACADDR MAC Address Invalid macAddress 3 EVENT_SYSTEM_ERROR System Error Please Reboot systemError 4 EVENT_BRIDGE Network Interface Error bridge 5 EVENT_RADIO_SYNTH Radio Synth Out of Lock radiosynth 12 EVENT_RADIO_CAL Radio Not Calibrated radiocal 13 EVENT_FREQ Setting Frequency Failed setfreq 15 EVENT_OTA_SYNC OTA Sync Lost otasync 18...

Page 53: ...or assistance OTA Sync Lost Mobile Radio has lost synchronization with the Base Radio Ensure wireless connection is free of obstacles and antennas are properly installed Ensure that time synchronization is valid on the Base as synchronization lost on the Base will also cause this alarm to occur on the Mobile Ensure that STFP messages traffic is present or beacons are enabled on the Base PA Tempera...

Page 54: ...spps 42 GPS Signal OK Inverted Displays if the GPS signal matches the configured GPS PPS Polarity OK or not Inverted ppsinverted 43 NMEA Data Valid Invalid Self explanatory nmeadata 44 Console User Logged Out In Self explanatory consoleLogin 48 Parameter Changed Self explanatory parmChanged 50 Configuration Script Generated Received Self explanatory cfgscript 51 Auth Key Entered Valid Invalid Self...

Page 55: ...og Entry Generating Condition Clearing Condition or Action GPS PPS Not Available Either not connected or a problem exists with the PPS connected to the radio Ensure connection to radio adapter board is correct Ensure configuration is correct NMEA Data Invalid Either not connected or a problem exists with the NMEA connected to the radio Ensure connection to radio adapter board is correct Ensure con...

Page 56: ...round only 13 8 VDC Nominal TX Supply Current Typical 7 A maximum 13 8 VDC at 25 W RX Supply Current Typical 300 mA 13 8 VDC ENVIRONMENTAL Humidity 95 non condensing at 40 C Temperature Range 40 to 70 degrees C 40 F to 158 F depending on Duty Cycle Duty Cycle 25W 30 Duty 40 to 60 degrees C 40 F to 140 F 10W 30 Duty 40 to 70 degrees C 40 F to 158 F 2W 100 Duty 40 to 70 degrees C 40 F to 158 F Weigh...

Page 57: ...Redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met 1 Redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer 2 Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the ...

Page 58: ... LOSS OF USE DATA OR PROFITS OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE ...

Page 59: ...turned to you as quickly as possible Please be sure to include the number on the outside of the shipping box and on any correspondence relating to the repair No equipment will be accepted for repair without an authorization number Return authorization numbers are issued online at www gedigitalenergy com Communications htm On the left side of the page click Login to my MDS and once logged in click ...

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