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Installation & Operation GuideReference ManualMDS 05-2708A01, Rev. EMDS TransNET 900™MDS TransNET 2400™Spread SpectrumData TransceiverJULY 2009

viii MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 4. Installation, operation and maintenance of the transceiver should be in accordance with the t

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 11.0 ABOUT THIS MANUALThis manual presents installation and operating instructions of the MDS TransNE

2 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E • 65,000 available network addresses• Network-wide configuration from the Master station eliminates

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 3devices. The operation of the radio system is transparent to the computer equipment. When used in th

4 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E TransNET radio links the outlying Remote site into the rest of a licensed MAS system by sending dat

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 52.5 AccessoriesThe transceiver can be used with one or more of the accessories listed in Table 1. Co

6 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 3.0 INSTALLATION PLANNINGThe installation of the radio is not difficult, but it does require some p

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 7These requirements can be quickly determined in most cases. A possible exception is the last item—ve

8 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E With the hand-held antenna positioned near the proposed mounting spot, a technician can check for s

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 95. If constant interference is present in a particular frequency zone, it may be necessary to “lock

1. Install and connect the antenna system to the transceiver• Use a high-quality gain antenna, mounted in the clear.• Use a low-loss feedline such as

10 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E At Remote sites and point-to-point systems, a directional Yagi antenna (Figure 8), is generally re

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 11Table 2 lists several types of feedlines and indicates the signal losses (in dB) that result when u

12 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Antenna Selection—Choose an antenna that offers a “DC ground” or direct low-impedance ground conne

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 13For convenience, Table 4 lists several antenna system gains and shows the maximum allowable power s

14 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 4.0 INSTALLATIONFigure 9 shows the contents of a typical transceiver shipment. Check the contents

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 15choose a mounting location that provides easy access to the connectors on the end of the radio and

16 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Typical RS/EIA-232 applications require the use of Pin 2 (receive data—RXD and Pin 3 (transmit dat

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 17The radio must be used only with negative-ground sys-tems. Make sure the polarity of the power sour

18 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E b. Set a unique Network Address (1–65000) using ADDR command. Each radio in the system must have t

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 19Figure 15. Data Interface Cable Wiring for Tail-End LinksAny device on the left that requires a key

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual iCONTENTS1.0 ABOUT THIS MANUAL ...12.0 PROD

20 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E • Remote radio(s) transmitting data (TXD) and receiving data (RXD) with Master station5.2 Performa

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 21Antenna SWR CheckIt is necessary to briefly key the transmitter for this check by placing the radio

22 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Baud Rate SettingThe default baud rate setting is 19200 bps to accommodate most systems. If your s

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 23The TransNET Configuration Software provides access to all of the radio’s capabilities with the ben

24 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Table 8. Network-Wide DiagnosticsCommand DescriptionDLINK [xxxxx/ON/OFF]Details, page 32Controls o

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 25 OWN [xxxxx]Details, page 37Owner’s name, or alternate message(30 characters maximum)PORT [RS232, R

26 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E ASENSEDetails Page 29Current sense of the alarm output.BAUDDetails Page 29Data communication param

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 27REPEATDetails Page 38The fixed downstream re-send count.RETRYDetails Page 38The maximum upstream re

28 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 6.3 Detailed Command DescriptionsThe essential commands for most applications are Network Address

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 29ADDR [1–65000]Network AddressThis command sets or displays the radio’s network address. The network

ii MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 5.2 Performance Optimization ... 20Antenna Aiming...

30 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E The first parameter (xxxxx) is baud rate. Baud rate is specified in bits-per-second and must be on

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 31Seamless mode (BUFF ON) is intended only for applications where the message size is 256 characters

32 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E For CTS Key operation (see the DEVICE command), the timer specifies how long to wait after asserti

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 33The following DLINK baud rates selections are supported:• 1200 • 4800 • 9600 • 19200 (default)• 384

34 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E HOPTIME [7, 28]Radio Transmitter Hop TimingThe HOPTIME command is used to set or display the hop-t

35 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E HREVHardware RevisionShows the hardware revision of the radio.KEYTurn On Radio Transmitter Test Si

36 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E LED [ON, OFF]Enable/Disable PCB LEDsLED ON enables/disables the PCB board mounted LEDs seen only w

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 37All units default to Remotes; other modes must be specifically programmed with the MODE command.If

38 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E pass. Pin descriptions for EIA-232 are on page 69 and EIA-485 can be found on page 71. PWR [20–30]

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 39For a Remote radio, under normal operation, RSSI is based on the average signal strength of the SYN

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual iiiCTSHOLD [0–60000]...32Clear-to-Send Hold TimeD

40 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Entering a RXD ON (0 ms default) or RXD XX will enable the function. Entering RXD OFF will disable

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 41SHOW CONShow Virtual Connection StatusShows virtual connection status established by the latest ATD

42 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E In the USA, a maximum of four zones may be skipped for TransNET 900 and a maximum of three zones m

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 43A display of 06-4040A01, 3.6.1 is an example of the firmware version identi-fier—part number follow

44 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E XADDR [0–31]Extended AddressUsed to display or program the Extended Address of this radio that wil

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 45Historical information on the quality of each zone can be accessed using the ZONE DATA command. The

46 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E • Check for errors in the synchronization qualifiers, XPRI and XMAP, on corresponding Remote radio

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 47With the exception of alarm code 00 (network address not programmed), major alarms generally indica

48 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 7.3 Troubleshooting ChartTable 19 provides suggestions for resolving system difficulties that may

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 497.4 Performing Network-Wide Remote DiagnosticsDiagnostics data from a Remote radio can be obtained

iv MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E PORT [RS232, RS485] ... 37Data Interface Port Sign

50 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 7.5 Internal Fuse ReplacementThe radio is protected by an internal fuse. This fuse can be blown by

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 518.0 RADIO FIRMWARE UPGRADESFrom time to time, Microwave Data Systems releases new firmware for its

52 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 9.0 OPERATING PRINCIPLES AND CONFIGURATION9.1 SAF Operation with Extension RadiosThe Store-and-For

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 53Extended SAF NetworkBelow is an example of a multilevel network utilizing two repeaters—XJ,K and XK

54 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 1. Mode X and M Radios—Can have direct reports (Mode R radios) out-side of the chain.2. Data (Payl

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 55All Remotes synchronize to a corresponding Master. This can be the “real Master” (the MODE M unit),

56 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E connections where wire lines were the only communications link available at the time. Most of thes

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 57AT <command errors>Replies with ERROR (Code 4)Characters with <no AT command> Modem wil

58 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Extended AddressXADDRDetails Page 44A number between 0 and 31 that will serve as a common address

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 599.5 Using the Radio’s Sleep Mode (Remote Units Only)In some installations, such as at solar-powered

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual vSTAT...43Alarm StatusTE

60 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E It is important to note that power consumption will increase somewhat as communication from the Ma

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 61Reading RSSI and Other Parameters with LPM EnabledIt may be desired to perform tests and review ope

62 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 9.7 Low-Power Mode versus Remote’s Sleep ModeThe Low-Power Mode (LPM) puts Remote radios into an o

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 63Operational Influences—Hoptime & SAFThe synchronization period is influenced by two parameters’

64 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E in order to reduce the interference to the point where overload of one network by the other will n

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 65must be capable of handling 1 Watt and have >25 dB isolation between TX ports. In some cases, up

66 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E The items described above provide sufficient security for a typical MAS system. For more highly-se

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 67Data Rate: 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps asyn-chronousDat

68 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Primary Power: 13.8 Vdc, Nominal (6–30 Vdc range)Current Draw (typical @ 27 dBm): Transmit: 510

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 6910.3 Diagnostic Interface Connections (RJ-11)Invisible place holderFigure 21. RJ-11 to DB-9 Adapter

vi MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 9.1 SAF Operation with Extension Radios ... 52Simple Extended SAF Netwo

70 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Pin Descriptions—RS/EIA-232 ModeTable 27 lists the DATA connector pin functions for radios configu

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 71Pin Descriptions—RS/EIA-422/485 ModeTable 28 lists the DATA connector pin functions for radios conf

72 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 10.5 User Configurable I/O ConnectionsSeveral connection points (eyelets) are provided within the

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual 73Using the I/O Points with InSite™ NMS SoftwareMDS’ InSite has the ability to read the user analog i

74 MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E 10.6 dBm-Watts-Volts Conversion ChartTable 30 is provided as a convenience for determining the equ

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual iINDEXAAccessories (table) 5ADDR command (set/display radio network address) 29Alarmchecking for 46co

ii MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E ADDR (set/display radio network address) 29AMASK (configure alarm output signal) 29ASENSE (set/dis

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual iiiXPRI (display/program primary radio’s extended address) 44XRSSI (sets minimum signal level for syn

iv MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E Downstream Repeat Transmission Count (REPEAT) Command 38DSP (digital signal processing) 1, 47DTYPE

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual vfeedline selection 10performance optimization 20requirements 6site selection 6site survey 7tail-end

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual viiApplication Example—Digital Input and Output at a Remote ...

vi MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E procedures 49Node (radio diagnostics type) 33, 50OLED 36Modbus, BUFF 30Operation 19–22OWM command

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual viiProgramming radio 28–44as root or node 49PWR command (set/display RF forward output power) 38RRadi

viii MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E DCE or CTS Key device behavior (DEVICE command) 32frequency zone to skip (SKIP command) 41hoptim

MDS 05-2708A01, Rev. E MDS TransNET Ref. Manual ixTemperature, display internal (TEMP command) 43Terrain 7Terrain and Signal Strength 7Test, on-the-a

x MDS TransNET Ref. Manual MDS 05-2708A01, Rev. E

IN CASE OF DIFFICULTY...MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment,

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