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MDS 05-6399A01, Rev. E

MDS™ Master Station

29

Maximizing RSSI

Since the Master Station almost always uses an omni-directional antenna, maximizing signal
strength is done at the remote sites where directional antennas are typically used. An RSSI
stronger than -90 dBm is desirable. Refer to Section 5.0 Device Management for information on
monitoring the RSSI for the Radio Module.

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Содержание MDS 4710M

Страница 1: ...MDS Master Station Modular Communications Platform MDS 05 6399A01 Rev E AUGUST 2015 Firmware Version 3 1 0 and higher Technical Manual ...

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Страница 3: ...s not cover the description or configuration of features and settings common to the MDS Orbit family of products For full information on config uring the parts of the system that are not directly related to SD networking or the MDS Master Station please reference the MDS Orbit MCR Technical Manual p n 05 6632A01 The MDS Master Station manual is designed to be used in paral lel with the MCR Technic...

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Страница 5: ... Switched Carrier Operation 19 3 2 Network Management 19 Network Wide Diagnostics 19 Network Management Using PulseNET 19 3 3 Redundant versus Non redundant Operation 20 3 4 Antennas and Feedlines 20 Antennas 20 Feedlines 20 3 5 Grounding Considerations 21 3 6 Data Interface Connections 22 Ethernet Data Interface RJ 45 22 Serial Data Interfaces 22 Serial Data Connection 22 Mini USB 23 Alarm Output...

Страница 6: ...CLI Quick Reference Table 32 5 4 Interface Naming 34 5 5 Configuration via the Device Manager 34 General Configuration 34 5 6 Interface Configuration 36 Understanding 36 Configuring 36 5 7 LAN 39 Understanding 39 Configuring 39 5 8 Bridging 42 Understanding 42 Configuring 42 5 9 SDMS Interface 42 Understanding 42 General 45 Configuration 45 General 46 Dlink 50 MAC Settings 51 IP Payload 53 IPv4 57...

Страница 7: ...ule 79 6 3 Platform Manager Module 80 Platform Manager LED Indicators 81 Ethernet Interfaces 81 COM1 Interface 82 COM2 Interface 82 Mini USB Interface 84 WiFi Antenna Interface Optional 85 GPS Antenna Interface Optional 85 6 4 SD Master Radio Modules 85 SD Master Radio Module LED Indicators 85 SD Master Radio Module RF Interface 86 SDM9 Radio Module 900MHz 86 SDM4 Radio Module 400 MHz 86 6 5 Alarm...

Страница 8: ...Radio Alarm and Alarm Relay Modules 94 Hot Swap Redundant Modules 94 Internal Duplexer Tray 95 MDS SDM4 400 MHz Notch Type Duplexers 95 MDS SDM9 Bandpass Type Duplexers 96 7 5 Testing and Removing an Internal Duplexer 96 Testing 96 Removing the Internal Duplexer 97 8 0 TECHNICAL REFERENCE DATA 100 8 1 RF Propagation Planning 100 Fresnel Zone Clearance 100 Formulas for System Planning 101 8 2 dBm V...

Страница 9: ... with all applicable lim its on radiated RF power and the RF power output may need to be adjusted to maintain compli ance depending on the gain of the antenna system All power supply main connections and disconnections must be made by a qualified electrical installer When servicing energized equipment be sure to wear appropriate Personal Protective Equipment PPE During internal service situations ...

Страница 10: ...orized for use with the EUT and b installation of the EUT into portable applications with respect to RF compliance will require SAR testing and Regulatory approval CSA Notice Units Both AC and DC supply versions are permanently connected to Protective Earth via ground stud on the unit enclosure back where the final installation is subject to acceptance of CSA International or the local inspection ...

Страница 11: ...ence in which case users will be required to correct the interference at their own expense This device complies with Part 15 of the FCC Rules 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 Warning Changes or modifications not expre...

Страница 12: ... contact our Customer Service Team using the information at the back of this guide In addition manual up dates can often be found on our Web site at www gemds com ESD Notice To prevent malfunction or damage to this radio which may be caused by Electrostatic Discharge ESD the radio should be properly grounded by connection to the ground stud on the rear panel In addition the installer or operator s...

Страница 13: ...ing Point to Multipoint SCADA Point to Point links broadband and Cellular connectivity de pending on the modules installed and active in the chassis In FCC part 90 SCADA service the radio can function as a Master Repeater or Remote and is capable of full duplex operation Internal duplexer options are available configured for use with or without an external notch filter Provisions for connection to...

Страница 14: ... installation and startup of the unit and is designed to be used with this Technical Manual The MDS Master Station Setup Guide Part No 05 6398A01 contains basic installation and startup instructions for the product All GE MDS user manuals and updates are available online at www gemds com The MDS Master Station is built on the Orbit platform For ref erence information on advanced networking feature...

Страница 15: ...radeable for future improvements and functionality enhancements Available encryption of payload data AES 128 bit for networks using all SD radios Dual serial functionality RS 232 and RS 485 Licensed 10 watt radio design ensures minimum 5 watts at the duplexer output and maximizes communications range with low interference risk from other users RF power adjustable 1 10 watts at output of radio card...

Страница 16: ...le connectors bulkhead mount 97 1680A01 97 1680A05 Cavity Filter Kit Removes or attenuates interfering 900 MHz signals from the receiver input Might be necessary in areas with high powered stations nearby such as paging transmitters Requires tuning to a particular frequency Available for use with an internal or external duplexer 03 3621Axx Alarm Audio Cable Cable connects to 6847 6848 Alarm Relay ...

Страница 17: ...0 952 0 953 0 COMBINED OUT 31 MHz 928 0 929 0 959 0 960 0 COMBINED OUT 9 MHz 932 0 932 5 941 0 941 5 RX OUT RX IN COMBINED OUT 24 MHz 928 0 929 0 952 0 953 0 RX OUT RX IN COMBINED OUT 31 MHz 928 0 929 0 959 0 960 0 RX OUT RX IN COMBINED OUT 03 6837D9B1 03 6837D9C1 03 6837D9D1 03 6837D9B3 03 6837D9C3 03 6837D9D3 Duplexers for 9K Band Radios Spare duplexer in tray wired for MDS Master Station 39 MHz...

Страница 18: ...30 C to 60 C 1 37 dBm 1 85 0 85 dB at back of chassis 30 C to 60 C 1 TX Frequency Response 1 0 dB from 100 Hz to 2 5 kHz Agency Approvals FCC Part 24D FCC Part 101C IC RSS 119 Load VSWR 10 1 Max All angles No damage Power Consumption 80W for all DC and AC versions 100 TX Duty Cycle Receive RX Parameter Specification Frequency Range 928 960 MHz SDM9C 880 915 MHz SDM9K RX Intermodulation 60 dB RX Ad...

Страница 19: ...ng 60 dB Operating Range 30 C to 60 C 1 Additional frequency bands under development 2 30 C to 50 C when operating continuously keyed CKEY 2 3 FCC Emission Designators How to Find Them An FCC emission designator is a seven character string that represents the bandwidth modula tion and other characteristics of a transmitted radio signal This information is required when applying for an FCC license ...

Страница 20: ... mo tion Tether strips on the ends of the cover are available to keep it linked to the chassis when it has been removed from its installed position The tethers allow the cover to rest just below the front panel during service work Figure 2 2 MDS Master Station Front Panel Connections Indicators Representative arrangement Module types vary based on product configuration Master Station modules are f...

Страница 21: ...urrently active Platform Manager 6834 Provides management and data interface functions Radio A Radio B 6846 SDM9 SDM4 Single or redundant full duplex SD Master radios Alarm Relay Module Alarm Module 6847 6848 Redundant Active radio RF relay and alarm audio interface Non redundant Alarm and audio interface Duplexer 6837 Internal RF duplexer if equipped Allows simultaneous transmission and reception...

Страница 22: ... vary but there are three main requirements for in stalling the unit in all cases Adequate and stable primary power An efficient and properly installed antenna system Correct interface connections between the Master Station and any connected equipment Figure 3 1 shows a common arrangement of the Master Station as used in a multiple address ra dio network The system shows both SD and legacy x710 re...

Страница 23: ...eceive Refer to Page 60 for details on configuring the radio for simplex or switched carrier operation 3 2 Network Management Network Wide Diagnostics The Master Station offers network wide diagnostics capability sometimes referred to as DLINK Diagnostics Network wide diagnostics communications is a packetized diagnostic capability that provides the following advantages You can gather diagnostic d...

Страница 24: ...and back up transceiver board operation is not possible Transceiver boards may be moved from one Master Station to another however an additional transceiver board cannot be added to a non redundant Master Station Redundant or non redundant operation is automatically detected by the platform manager and the active transceiver is automatically selected Installing or replacing a transceiver board cau...

Страница 25: ...B 7 8 inch HELIAX 0 08 dB 0 42 dB 0 83 dB 1 66 dB 1 1 4 inch HELIAX 0 06 dB 0 31 dB 0 62 dB 1 24 dB 1 5 8 inch HELIAX 0 05 dB 0 26 dB 0 52 dB 1 04 dB 3 5 Grounding Considerations To minimize the chance of damage to the radio and connected equipment a safety ground NEC Class 2 compliant is recommended which bonds the Master Station antenna system and con nected data equipment to a single point grou...

Страница 26: ...t to an external DTE serial device The default factory settings for the radio s COM2 port configure it for management of the radio via a serial connection to a PC These ports are user configurable for specific applications The procedures for changing their default opera tion are provided later in this guide Not all PCs have a serial port If one is not available a USB to Serial adapter and appro pr...

Страница 27: ...er USB drivers available at www gemds com Connect to the man agement PC using the included Mini USB Cable Once the PC registers the device driver the port will auto baud The USB port provides CLI management only and cannot be used for net work diagnostics or for payload data Alarm Output and 4 Wire Audio Alarm and audio signals are provided on the Alarm or Alarm Relay module Refer to Table 6 15 fo...

Страница 28: ... the unit while in operation 1 Mount the Unit The unit may be rack mounted 2U high in a 19 inch rack cabinet or may be placed on any sturdy tabletop or other flat surface The installation site should be free of excessive dust and should have adequate ventilation The chassis should be posi tioned so that all interface cabling will reach the required connectors a When rack mounting the rack ears can...

Страница 29: ...S Master Station 25 Figure 4 1 Internal Duplexer Triple N connectors Figure 4 2 Internal Duplexer or internal T R switch Single N connectors Figure 4 3 External duplexer or dual antennas TX and RX ports pass directly through ...

Страница 30: ...ng one or two power sup ply modules that work in tandem The modules may be AC DC or a combination of both The following tables list each type and key operating parameters Table 4 1 AC Power Supply Module Module Input Power Current Rating 6755 100 220 VAC 50 60 Hz 120W Max All DC power supply modules have chassis isolated inputs and a diode bridge for floating ground positive ground or negative gro...

Страница 31: ...alarm outputs one for major and one for minor alarms This module also provides TX RX audio PTT TX keying and analog RSSI connections See Alarm Audio Inter face on Page 88 for pinout connections All other required connections on the front of the unit are cabled at the factory per or dered options 8 Add connection of battery backup as applicable Initial Startup Operation The radio is designed for co...

Страница 32: ...first applied the following events occur in a normally working unit All front panel indicators light briefly The ACTIVE LED for the selected transceiver board lights The Power LED on the transceiver modules will begin to flash indicating they have not yet communicated with the platform manager The Power LED and Alarm LED will light on the Platform Manager card At this point the platform manager is...

Страница 33: ...lmost always uses an omni directional antenna maximizing signal strength is done at the remote sites where directional antennas are typically used An RSSI stronger than 90 dBm is desirable Refer to Section 5 0 Device Management for information on monitoring the RSSI for the Radio Module ...

Страница 34: ...highly configurable to meet field requirements but comes pre configured as follows COM1 is configured for transparent serial payload at a baud rate of 115200 8N1 COM2 is configured to operate at a baud rate of 115200 8N1 and is enabled for local console operation USB is enabled for local console operation proper system drivers must be installed on the PC connected to the MDS Master Station to use ...

Страница 35: ...SB con sole Note the local serial cannot be used if configured as a payload or diagnostic interfaces You also cannot use a one time password when connecting to the unit remotely Therefore in some configurations the USB console is the only option To use the one time password for log in proceed as follows At the username prompt enter the word recovery At the password prompt paste in the one time pas...

Страница 36: ...MDS web site 2 Connect a PC to the unit s USB port and establish a console terminal session using a seri al communications program 3 Press the ENTER key to receive the login prompt 4 Enter the username admin is the default username and press ENTER 5 At the Password prompt enter the password admin is the default password Press ENTER Upon successful login the connection message appears 6 Enter the c...

Страница 37: ...o Mode set interfaces interface sdms sd config radio config basic config radio mode radio mode Configure SDMS Radio Power set interfaces interface sdms sd config radio config basic config rf output power value Key Dkey the SDMS Radio request interfaces interface sdms sd config maintenance rf key test key radio true false Send a Remote Maintenance Request to Remotes request interfaces interface sdm...

Страница 38: ...net port on the platform manger card in slot 0 eth 0 0 1 The second Ethernet port on the platform manager card in slot 0 sd 2 0 0 The SD Radio module in slot 2 Logical non physical interfaces such as bridges and VLANs use free form names and can be renamed by the user 5 5 Configuration via the Device Manager The Device Manager is a built in software tool that works with your PC s browser to provid...

Страница 39: ...lick Sign In 5 On first time login the Initial Setup Wizard will appear and provide guidance for general device setup This is disabled after the initial setup has been complete but may be re run at any time by accessing the Wizards link on the left side of the screen and clicking Ini tial Setup Key items that should be reviewed and or set for the radio include Create one time programmable password...

Страница 40: ... serial console settings are 115200 bps with 8N1 format A mini USB to USB cable may also be used to connect to a Computer in case no serial port exists If a mini USB connection is used the computer must contain the appropriate device driver A driver for serial operation can be found on GE MDS website Configuring The screen below shows console access to the COM1 serial and USB port Navigate to Serv...

Страница 41: ... of the operation line mode of the serial port Choices are RS232 DEFAULT RS485 2 Wire RS485 4 Wire Baud Rate The serial port baud rate in bps Choices are 1200 2400 4800 9600 19200 38400 57600 115200 DEFAULT Byte Format The data byte format in bits parity and stop bits Choices are 7N1 7 char bits no parity 1 stop bit 7E1 7 char bits even parity 1 stop bit ...

Страница 42: ...erial port is not being used an SD payload or diagnostics DLINK port Serial Hardware Flow Control When serial port is not being used as a SD payload or SD diagnostics DLINK port Hardware Flow Control When operating in CTSKEY mode all serial ports in the data path are required to be set to the same baud rate and that VMIN and VTIME remain at the defaults for serial data packets less than or equal t...

Страница 43: ...basic configuration of Ethernet ports and bridges For full details on the configuration of more advanced features please reference the MDS Orbit MCR Technical Manual 05 6632A01 The Master Station has external Local Area Network LAN ports ETH1 2 ports that can be used to connect to a local wired LAN It supports both IPv4 and IPv6 addresses and may be assigned multiple IP addresses The LAN port can ...

Страница 44: ...0Mb Half Eth 10Mb Full Eth 100Mb Half Eth 100Mb Full Vlan Mode Virtual LAN Setting None DEFAULT Access Use this if this interface is intended to be a member of only a single VLAN Trunk Use this if this interface is intended to be a member of multiple VLANs Enabled Enable or disable the use of an IP address Forwarding Indicates if IPv4 packet forwarding is enabled or disabled on this interface True...

Страница 45: ...lter Output Use for selecting and applying a firewall filter from available filters to outgoing traffic on this interface For more information on packet filtering refer to Access Control List Packet Filtering Fire wall in the MDS Orbit MCR Technical Manual 05 6632A01 Input Default Selections others may have been added IN_TRUSTED IN_UNTRUSTED OUT_TRUSTED OUT_UNTRUSTED Output Default Selections othe...

Страница 46: ...e destination address and any of the bridge s ports aside from the one on which the frame was received the frame is for warded out the indicated port If no association is found the frame is flooded to all ports except the inbound port Broadcasts and multicast also are flooded in this way The bridged network is addressable via the bridge interface a virtual interface The interfaces that are in the ...

Страница 47: ... Each port at the receiving end then filters incoming data based on the associated VRC number The Virtual Radio Channel VRC feature is only supported in Packet w MAC modes It is not supported in Transparent or x710 mode To create the pipes that direct data to the desired ports a route must be established using the IP Payload Configuration Menu or payload serial settings on the general configuratio...

Страница 48: ...rom radios on the same RF channel With MAC operation a single radio is configured as an Access Point AP and other units are designated as Remotes The AP serves as the controller of the RF network Re motes request permission from the AP to use the RF channel before sending payload data thus avoiding collisions of data and creating a highly reliable wireless network The MAC is respon sible for alloc...

Страница 49: ...face of the SD NIC The colored indicator will transition to yellow and red as the NIC approaches it s operational limits PA Temperature The current temperature in degrees C of the power amplifier on the SD NIC The colored indicator will transition to yellow and red as the NIC approaches it s operational limits Configuration From the sdms interface page all SD related configuration options can be s...

Страница 50: ...elections for radio operation Members The Master Station sdms interface is a logical interface that is composed of one or more physical SD interface cards sd nic The members configuration item is the mapping between the logical sdms interface and the physical sd nic cards A single sd nic resides in each SDM Radio Module ...

Страница 51: ...cable switching and duplexer losses Full power is not required in many cases and lower settings will place less demand on the power supply and reduce the chance of interference with other stations Only the power necessary to carry out reliable communications should be used Transmit Receive Frequency The receive and transmit frequencies may be viewed or set here Frequencies must be entered for the ...

Страница 52: ...ency 952 1235 MHz on both of these systems Proper system installation has been adhered to in both networks System Alpha s units would all be set to System ID 1 System Beta s units would be set to System ID 5 Both systems will now operate on the same desired frequency Examples of valid and invalid arrangements are shown in Figure 5 3 and Figure 5 4 re spectively Figure 5 3 System ID Example Valid A...

Страница 53: ...ial data The default value for this is COM1 Serial port settings such as baud rate and byte format are located under Services Serial Ports Payload Buffer The transceiver s buffer provides a way of handling data over runs where more data is passing through the COM port than can be immediately handled by the unit When the payload buffer is on any such data is stored up and processed in the appropria...

Страница 54: ...bps B W kHz Approximate Sensitivity dBm ETSI Compli ance BELL 1 1200 12 5 110 V23 1200 12 5 110 3200 1 2 3200 5 00 108 4800B 1 4800 12 5 110 4800F 4800 6 25 108 9600B 1 9600 12 5 106 9600 1 9600 12 5 112 9600N 9600 6 25 98 19200N 19200 12 5 100 19200 19200 25 105 38400N 38400 25 99 65000 3 65000 50 See note 3 4800 1 4800 12 5 112 X 9600M 1 9600 12 5 106 X 19200E 19200 12 5 96 X 19200M 19200 25 106...

Страница 55: ...a pre shared key via TLS The version specified by this parameter will be only version allowed by the server TCP Port The TCP port that the Dlink service will listen on IPv4 Addr Optionally configure the service to only attach to the specified IPv4 Address This is useful when traffic is being separated into data and management VLANs If no value is specified the service will accept connections on al...

Страница 56: ...or old data from being sent over the air SAF Network Access Point only If this device is in use in a Store And Forward network enable this option Repeater Network Access Point only If this device is in use in a repeater network enable this option Payload 1 2 Inter Packet Gap The inter packet gap is a timing setting in ms used to delimit a packet on the serial interface Too short of a time can caus...

Страница 57: ...o enable this IP Payload configuration IP Payload Mode The mode in which this instance of the IP Payload service should operate The details of these modes are shown below Talk on VRC Only in packet with mac mode The Virtual Radio Channel that data from this IP Payload instance will be tagged with when transmitted over the air Listen to VRC Only in packet with mac mode Over the air data tagged with...

Страница 58: ...tion is configured with multiple IP interfaces you can specify that the IP Payload service only will listen for connections on one of the IP addresses of the system This is useful in VLAN configurations where you wish to only make the IP Payload server available on a specific VLAN in the system TCP Client The TCP client mode allows the Master Station to connect to a TCP server when there is traffi...

Страница 59: ... and TCP Client mode In this mode the Master Station will listen for incoming TCP connections and pass data exactly as in TCP Server mode However if there is no active server connection and over the air payload traffic arrives at the Master Station the Master Station will establish an outgoing TCP connection to a remote server and transmit that data to the remote server A use case for this mode of...

Страница 60: ...the system UDP When operating in UDP mode the IP Payload service uses the connectionless UDP protocol Since UDP is connectionless there must be receiving sockets at each end of the connection to allow for bi directional communications In this mode when an application has traffic to send out over the SD network it will establish a UDP connection to the Master Station and transmit the payload data W...

Страница 61: ...th multiple IP interfaces you can specify that the IP Payload service only will listen for connections on one of the IP addresses of the system This is useful in VLAN configurations where you wish to only make the IP Payload server available on a specific VLAN in the system IPv4 This configuration section allows you to configure either a static or dynamic DHCP IPv4 ad dress to the SDMS interface w...

Страница 62: ...N interface For full information on applying firewall filters to interfaces see the MDS Or bit MCR Technical Manual 05 6632A01 VLAN The VLAN configuration section is used to configure the SDMS interface to be a member of a VLAN For full information on configuring VLANs and adding interfaces to existing VLANs see the MDS Orbit MCR Technical Manual 05 6632A01 ...

Страница 63: ...ster Station 59 NAT The NAT configuration section is used to configure network address translation NAT on the SDMS interface For full information on configuring NAT on interfaces see the MDS Orbit MCR Technical Manual 05 6632A01 ...

Страница 64: ...Advanced Soft Carrier Dekey Specifies how long in ms to wait after the removal of the keying signal before actually dropping the transmitter s carrier The default setting is 0 but it may be set to any value up to 255 ms In most cases no change is required from the default ...

Страница 65: ...usly Ckeyed and transmits only when it has data to send to Remotes This is known as Switched Carrier operation The Switched Carrier setting is only for use on radio modems with B suffixes for compatibility with MDS x710 radios In such networks the Remote radios should have the Switched Carrier setting turned ON The default setting is OFF which assumes B modem operation with a continuously keyed Ma...

Страница 66: ...use the radio to operate in a legacy packet mode This is not full packet mode as found on SD radios as there is no support for listen before talk Modem Receive Tolerance Changes the receive tolerance of the modem This value should always be set to normal unless instructed to change it by GE MDS technical support for specific applications Modem Transmit Tolerance Changes the transmit tolerance of t...

Страница 67: ...led to the specified value Valid range is 20 0 Tx Level Auto Automatically adjust transmit audio input level from Modem Tx Level Transmit audio input level from Modem dBm A transmit input signal of the specified value will translate into the specified peak deviation for transmit Valid range is 20 0 Emphasis When enabled pre emphasis is applied on the transmitter and de emphasis is applied on the r...

Страница 68: ... radio It is useful for system testing within the radio network by providing realistic data to pass over the radio channel RTU Enabled Enable the built in RTU simulator RTU Number The RTU number the simulator will respond to requests for Remote SD Reprogramming This section contains various parameters for the broadcasting of new firmware to remote SD ra dios Please see section Remote SD Reprogramm...

Страница 69: ...number setting encryption if enabled etc Al so collected at the same time is an indication of link quality All radios are always ready to re spond to a Link Test message Only the initiating radio requires configuration when using the Link Test screen and it is only available when operating in Packet w MAC mode A summary of data statistics is displayed on the right side of the screen including tran...

Страница 70: ...commands to remote SD radios in the network These commands are sent to all connected remote radios and hence should only be used for making network wide changes The following action can be specified Reboot All remote radios will reboot to the currently active firmware image Set Radio Mode Change the radio mode of remote radios x710 transparent packet packet with MAC Set Frequencies Set the receive...

Страница 71: ...F Key Test Using the RF Key Test action the active radio can be manually keyed transmitter enabled or de keyed transmitter disabled This may be useful when diagnosing signal strength on a remote receiver Spectrum Analyzer A unique feature of the transceiver is the ability to view the RF spectrum above and below the operating frequency using its built in Spectrum Graph Often this can assist in diag...

Страница 72: ... however the Master Station remains unaware of the num ber or success of downstream radios participating in reprogramming During reprogramming the status of the reprogramming will be available on all the radios par ticipating in the process Because the initiator is broadcast only this status can only indicate progress toward sending out of all of the messages On the nodes the progress toward compl...

Страница 73: ...a polling should be stopped during Intrusive Reprogramming See Table 5 4 for reprogramming times Block Size Sets the overall block size in bytes of each data packet Default setting is 512 Auto Reboot When enabled the remote radios will automatically reboot after a firmware image upgrade If disabled the newly loaded image will not become valid until the remote radio is rebooted manually Packet Size...

Страница 74: ...5 minutes Radio assumptions Signal strength 85 dBm or stronger Packet Size 40 Block Size 512 Retry 3 Download Delay Short Polling assumptions Polling should be temporarily suspended while OTA reprogram ming is active Start Reprogramming When ready to reprogram the SD firmware click the Start Reprogramming action File Source There are many file transfer protocols supported select Local File to uplo...

Страница 75: ...mally require any change When the above fields have been set and you are ready to load a new file click the Begin Re programming button to begin reprogramming To view the current status of the remote repro gramming operation navigate to the sdms interface status page Cancel Reprogramming During the reprogramming operation the user has the ability to cancel reprogramming at any time either on the M...

Страница 76: ...een detected to prevent their being deliverable to a higher layer protocol One possible reason for discarding such a packet could be to free up buffer space In Errors For packet oriented interfaces the number of inbound packets that contained errors preventing them from being deliverable to a higher layer protocol Out Octets The total number of octets transmitted out of the interface including fra...

Страница 77: ...ation of the signal to noise ratio of the received signal RSSI Read only indication of the measured received signal strength in dBm IPv4 IPv6 5 10 SD x 0 0 Interfaces Configuration for each SD Radio Modules is done via the SDMS interface Each individual in terface provides statistics for serial IP payload and MAC that could be helpful in a debugging situation General Interfaces sd x 0 0 Status Gen...

Страница 78: ...ayload 1 3 Discontinuity Time The time on the most recent occasion at which any one or more of this interface s counters suffered a discontinuity or interruption of service Com 1 Tx Bytes The total number of transmitted bytes on the COM1 port Com 1 Rx Bytes The total number of received bytes on the COM1 port Com 2 Tx Bytes The total number of transmitted bytes on the COM2 port Com 2 Rx Bytes The t...

Страница 79: ...r of transmitted packets Rx Eth Bytes Total number of received bytes on the Ethernet Rx Eth Packets Total number of received packets on the Ethernet Tx Eth Bytes Total number of transmitted bytes on the Ethernet Tx Eth Packets Total number of transmitted packets on the Ethernet Rx Radio Bytes Total number of received bytes through the radio Tx Radio Bytes Total number of transmitted bytes through ...

Страница 80: ...Tx Frames Total number of transmitted frames on the MAC MAC Rx Frames Total number of received frames on the MAC MAC Checksum Fails Total number of checksum failures on the MAC MAC Tx Data Frames Total number of transmitted data frames on the MAC MAC Tx Contention Frames Total number of transmitted contention frames on the MAC MAC Tx Contention Grants Total number of transmitted contention grants ...

Страница 81: ... MAC Retries Total number of retires on the MAC MAC Acknowledgements Total number of MAC frames acknowledged by the access point when operating as a remote MAC TTL Expirations Total number of frames dropped due to expired time to live counters ...

Страница 82: ...red for MDS Master Station 6843 12 36 V DC Power Supply Module 12 36 VDC 10 A Max DC Power Supply Module Spare power supply can be used in either of two power supply slots of the MDS Master Station 6844 36 75 V DC Power Supply Module 36 75 VDC 3 5 A Max DC Power Supply Module Spare power supply can be used in either of two power supply slots of the MDS Master Station 6845 75 140 V DC Power Supply ...

Страница 83: ...erating range 30 C to 39 C Master station power supply modules are field replaceable units that can be removed from an operating system so long as the input power source to the module being replaced has been disconnected Refer to Section 7 4 Replacing Modules for infor mation on removal and installation When installing AC Power Supply modules torque thumbscrews to 10 in lbs to insure optimum heat ...

Страница 84: ...ved from an operating system so long as the input power source to the module being replaced has been disconnected Refer to Section 7 4 Replacing Modules for information on removal and installation DC power supply modules are available for several different input ranges These modules have interchangeable connectors Make sure the supply is within the rating for the module installed When installing D...

Страница 85: ...ow Note that the small connector on the bottom right just above the part number is currently unused Platform Manager LED Indicators The Platform Manager has BLUE LEDs to indicate Platform Manager power on system initiali zation and Master Station alarm status The behavior of these LEDs is described below Table 6 4 Platform Manager LEDs LED Name Behavior Meaning PWR BLUE FLASHING Power Applied Syst...

Страница 86: ...und negative supply potential on chassis 5 OUT RXD Received Data Supplies received data to the connected device Ground Connects to ground negative supply potential on chassis 6 IN TXD Transmitted Data Accepts TX data from the connected device 7 OUT CTS Clear to Send Can be used for flow control or as an output to key another connected radio 8 IN RTS Request to Send Can be used for flow control or ...

Страница 87: ... device Table 6 7 COM2 Pin Descriptions Radio in RS 232 Mode Pin Number Radio Input Output Pin Description 1 Reserved Do not connect 2 Reserved Do not connect 3 Reserved Do not connect 4 Ground Connects to ground negative supply potential on the radio s PC board 5 OUT RXD Received Data Supplies received data to the connected device 6 IN TXD Transmitted Data Accepts TX data from the connected devic...

Страница 88: ...nt RXD RXB and RXD RXA are data received by the radio and transmitted RXD RXB is positive with respect to RXD RXA when the line input is a 0 TXD TXB and TXD TXA are data sent to the radio to be transmitted TXD TXB is positive with respect to the TXD TXA when the line output is a 0 Table 6 9 EIA 422 4 Wire Connections External DB 9 COM2 TXD 2 7 TXD RXD 3 8 RXD RXD 7 6 RXD TXD 8 5 TRD Table 6 10 EIA...

Страница 89: ...ngs include variants that span 800 960MHz Master station Radio modules are field replaceable and hot swap pable Refer to Section 7 4 Replacing Modules for information on removal and in stallation When installing Radio Modules torque thumbscrews to 10 in lbs to insure optimum heat transfer through thermal contact connector on the rear of the unit SD Master Radio Module LED Indicators The SD Radio M...

Страница 90: ...s an SD Master Radio Module with several variants to accommodate different fre quency bands Current offering is the SDM9C which supports 928 960MHz Refer to the table below for detailed information about this transceiver Table 6 12 6846 SDM9 Radio Module Specifications Frequency Band 820 870MHz Pending 880 915MHz Pending 928 960MHz SDM9C Duplex Modes Full Half Duplex Switched Carrier Half Duplex S...

Страница 91: ...duplex with continuous transmit 40dBm Antenna Connector Dual FAKRA SMB 6 5 Alarm and Alarm Relay Modules Figure 6 8 Alarm Relay Module Part No 03 6847Axx 03 6848Axx There are 2 versions of the Alarm Module depending on whether the system is redundant or non redundant The module pictured above is for redundant systems Table 6 14 Alarm Modules Part Number Description System Interfaces and Indicators...

Страница 92: ...D On Minor Alarm Master Station ACT A BLUE On Radio A Active Off Radio A Standby ACT B BLUE On Radio B Active Off Radio B Standby Alarm Audio Interface The ALARM AUDIO Interface on the Alarm Relay module provides audio signaling and alarm outputs as shown below AUDIO 4 wire audio circuits are connected to pins 1 through 4 as shown in Figure 9 Terminals 1 and 2 are for transmit audio input with a n...

Страница 93: ...ositions to associate it with a particular radio The toggle switch is locking and must be pulled out to change positions Switch functions are as follows Up Radio A Down Radio B Center Automatic When the switch is set to Automatic the active radio is determined by radio module presence and alarm status If only one radio module is installed A or B it is recommended that the switch be set to A or B a...

Страница 94: ...e 6 16 Cabling to the Duplexer Tray Faceplate Duplexer Option Frequency Plan Cable From To Antenna Connection on Back Comment Internal TX RX TX HIGH RX LOW COMBINED OUT Cable by Frequency Plan to High Low Internal TX RX TX LOW RX HIGH COMBINED OUT Cable by Frequency Plan to High Low Simplex TX RX TX RX TX RX TX HIGH RX LOW TX RX Software configurable single or dual antenna port External TX RX TX R...

Страница 95: ...evel repairs in the field However you can replace the radio s major assemblies without using tools or test equipment Section 7 4 Replacing Mod ules covers this in detail Before starting any detailed troubleshooting check the basic requirements at both ends of the link primary power secure cable connections and proper antenna heading In many cases one of these causes poor operation or a complete lo...

Страница 96: ...ait several minutes for system to boot Platform Manager ALARM Flashing BLUE Master Station Alarm Use Device Manager to determine Alarm Radio Module PWR ALARM Flashing GREEN Radio power up Wait several seconds for radio to boot Radio Module PWR ALARM ACTIVE Alternating Radio Firmware update Wait several minutes for firmware upgrade to complete Radio Module PWR ALARM Flashing RED Radio Alarmed Use D...

Страница 97: ...plexers can also be replaced in the field In this way you can quickly re move and replace a defective assembly with a working assembly The following instructions de scribe the removal and installation of these assemblies When installing Power Supply or Radio Modules torque thumbscrews to 10 in lbs to insure optimum heat transfer through thermal contact connector on the rear of the unit Power Suppl...

Страница 98: ...eripheral modules first disconnect cables attached to the faceplate of the module you are removing Label connections if necessary to remember how connections are made Loosen the two thumbscrews on the front of the module then slide the module straight out moving other cables out of the way as necessary The Radio Module heat spreader gets very hot under normal operating con ditions Always use cauti...

Страница 99: ... screws have been removed push on the connectors on the back of the unit to free the tray from the chassis and then slide out the front To install a new tray slide the tray in allowing the connectors to push through the back of the chassis Use the same screws to secure the front of the tray to the chassis and then reconnect cabling being careful to connect TX and RX cables from the Alarm Module to...

Страница 100: ...r registers approximately 37 dBm 5 watts the internal duplexer is probably functioning correctly see Table 8 1 dBm Volts Watts Conversion Chart for dBm volts watts conversion chart If the power registers significantly less than 37 dBm proceed with Step 2 2 Locate the TX SMA connection on the front of the duplexer tray 3 Using an adapter connect the RF power meter to the SMA Cable on the front of t...

Страница 101: ...s can be installed in the ra dio While the physical appearance of the duplexer may vary slightly its operation and removal remain the same Disconnect the SMA cables from the front of the duplexer tray Remove the two screws on the top of the unit that secure the duplexer tray into the front of the chassis Carefully slide the duplexer tray out the front of the chassis by applying pressure to the ant...

Страница 102: ...98 MDS Master Station MDS 05 6399A01 Rev E Remove four screws to remove the duplexer assembly from the tray ...

Страница 103: ...MDS 05 6399A01 Rev E MDS Master Station 99 Figure 7 3 Internal Duplexer Removal Use care when removing the duplexer Physical damage may cause detuning ...

Страница 104: ...n a clear path Fresnel Zone Clearance As the distance spanned by a link gets longer it is necessary to have more than just a grazing path between the two ends the path must clear the ground or other obstacles by some percentage of a Fresnel zone The Fresnel zone corresponds to the width or girth of the radio signal There are first second and third Fresnel zones but the first zone is the only one t...

Страница 105: ... more or less resulting in fading at the receiver The longer the path the more likely that deep fades will occur hence the greater the fade margin required Different parts of the world have differing propagation conditions which can be categorized as favorable average or adverse In general mountainous areas have favorable propagation condi tions while tropical areas and those near large bodies of ...

Страница 106: ...dBm Gta Ltfl αfs free space path loss in dB Gra receive antenna gain in dBi Lrfl receive feedline loss in dB Ltfl transmit feedline loss in dB Gta transmit antenna gain in dBi Probability of System Fading where FProb probability of fading more than F a terrain factor 4 is used for very smooth terrain such as over water 1 is used for average terrain with moderate roughness 0 25 is used for mountain...

Страница 107: ... 4 141 40mW 5 125 32mW 6 115 25mW 7 100 20mW 8 090 16mW 9 080 125mW 10 071 10mW 11 064 12 058 13 050 14 045 15 040 16 0355 dBm mV Po 17 31 5 18 28 5 19 25 1 20 22 5 01mW 21 20 0 22 17 9 23 15 9 24 14 1 25 12 8 26 11 5 27 10 0 28 8 9 29 8 0 30 7 1 001mW 31 6 25 32 5 8 33 5 0 34 4 5 35 4 0 36 3 5 37 3 2 38 2 85 39 2 5 40 2 25 1µW 41 2 0 42 1 8 43 1 6 44 1 4 45 1 25 46 1 18 47 1 00 48 0 90 dBm mV Po ...

Страница 108: ...mprise a byte Bits per second See BPS BPS Bits per second A measure of the information transfer rate of digital data across a com munication channel Bridging see Ethernet Bridging Byte A string of digital data usually made up of eight data bits and start stop and parity bits Ckeyed Pertains to continuously keyed Master stations full duplex CLI Command Line Interface A method of user control where ...

Страница 109: ... RTU or PLC When the buffer approaches overflow the radio drops the clear to send CTS line which instructs the RTU or PLC to delay further transmission until CTS again returns to the high state Host Computer The computer installed at the master unit which controls the collection of da ta from one or more remote sites I O Input Output IP Internet Protocol Intrusive Diagnostics A mode of remote diag...

Страница 110: ...igned with a central control station that exchanges data with a number of remote locations equipped with terminal equipment Poll A request for data issued from the host computer or master PLC to a remote radio PLC Programmable Logic Controller A dedicated microprocessor configured for a specific application with discrete inputs and outputs It can serve as a host or as an RTU PPM Parts per Million ...

Страница 111: ... related to the ratio between forward transmitter pow er and the reflected power from the antenna system As a general guideline reflected power should not exceed 10 of the forward power 2 1 SWR maximum Telnet A terminal emulation protocol that enables an Internet user to communicate with a re mote device for management activities as if it were locally connected to a PC Terminal Server An available...

Страница 112: ...shipping box and on any cor respondence 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 Service Request Order Your number will be issued immediately after the required information is ...

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