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MDS MDS 4710 Series, Инструкция по установке и эксплуатации

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12

MDS 4710/9710 I/O Guide

MDS 05-3305A01, Rev. B

Invisible place holder

Figure 8. Typical Yagi Antenna (mounted to mast)

Feedlines

The selection of antenna feedline is very important. Poor quality cables 
should be avoided as they will result in power losses that may reduce the 
range and reliability of the radio system.

Table 2 and Table 3 show the losses that will occur when using various 
lengths and types of cable at 400 and 960 MHz. Regardless of the type 
of cable used, it should be kept as short as possible to minimize signal 
loss.

Table 2. Length vs. Loss in Coaxial Cables at 400 MHz

Cable Type 

10 Feet

(3.05 Meters)

50 Feet

(15.24 Meters)

100 Feet

(30.48 Meters)

500 Feet

(152.4 Meters)

RG-8A/U

0.51dB

2.53 dB

5.07 dB

25.35 dB

1/2 inch HELIAX

0.12 dB

0.76 dB

1.51 dB

7.55 dB

7/8 inch HELIAX

0.08 dB

0.42 dB

0.83 dB

4.15 dB

1-1/4 inch HELIAX

0.06 dB

0.31 dB

0.62 dB

3.10 dB

1-5/8 inch HELIAX

0.05 dB

0.26 dB

0.52 dB

2.60 dB

Table 3. Length vs. Loss in Coaxial Cables at 960 MHz

Cable Type 

10 Feet

(3.05 Meters)

50 Feet

(15.24 Meters)

100 Feet

(30.48 Meters)

500 Feet

(152.4 Meters)

RG-8A/U

0.85 dB

4.27 dB

8.54 dB

42.70 dB

1/2 inch HELIAX

0.23 dB

1.15 dB

2.29 dB

11.45 dB

7/8 inch HELIAX

0.13 dB

0.64 dB

1.28 dB

6.40 dB

1-1/4 inch HELIAX

0.10 dB

0.48 dB

0.95 dB

4.75 dB

1-5/8 inch HELIAX

0.08 dB

0.40 dB

0.80 dB

4.00 dB

Содержание MDS 4710 Series

Страница 1: ...Installation and Operation Guide MDS 05 3305A01 Rev B SEPTEMBER 2000 400 MHz 900 MHz Remote Data Transceiver MDS 4710 9710 Series Including MDS 4710A C and MDS 9710 A C...

Страница 2: ...figuration with a Hand Held Terminal HHT Set the transmit frequency TX xxx xxxx Set the receive frequency RX xxx xxxx Set the baud rate data interface parameters as follows Use the BAUD xxxxx abc comm...

Страница 3: ...ounting 11 3 3 Antennas and Feedlines 11 Feedlines 12 3 4 Power Connection 13 3 5 Data Interface Connections 13 3 6 Using the Radio s Sleep Mode 13 System Example 13 4 0 OPERATION 15 4 1 LED Indicator...

Страница 4: ...9 SHOW DC PORT PWR 29 SNR 29 SREV 29 STAT 29 TEMP 30 TOT 1 255 ON OFF 30 TX xxx xxxx 30 UNIT 10000 65000 30 6 0 TROUBLESHOOTING 30 6 1 LED Indicators 31 6 2 Event Codes 31 Checking for Alarms STAT com...

Страница 5: ...icrowave Data Systems adheres to this internationally accepted quality system standard MDS Quality Policy Statement We the employees of Microwave Data Systems Inc are committed to achieving total cust...

Страница 6: ...oval as set forth by the approving agencies These conditions of approval are as follows 1 The transceiver must be mounted within a separate enclosure which is suitable for the intended application 2 T...

Страница 7: ...t specification for a product please con tact our Customer Service Team using the information at the back of this guide In addition manual updates can often be found on the MDS Web site at www microwa...

Страница 8: ...vi MDS 4710 9710 I O Guide MDS 05 3305A01 Rev B...

Страница 9: ...s to differences between components from unit to unit and ensures consistent and repeatable performance in ambient temperatures from 30 to 60 degrees Centigrade The use of Digital Signal Processing el...

Страница 10: ...asurement etc The radio system may replace a network of remote monitors currently linked to a central location via leased telephone line At the central office of such a system there is usually a large...

Страница 11: ...uencies must be used for transmit and receive This is the method used in many MAS systems and is shown in Figure 2 This is useful for high speed polling applica tions NOTE 4710 9710 remotes do not sup...

Страница 12: ...BRACKETS A Standard B None C 19200 25kHz RECEIVE FREQUENCY A 380 400 MHz B 400 420 MHz C 420 450 MHz D 450 480 MHz E 480 512 MHz L4 406 430 MHz TRANSMIT FREQUENCY 1 380 400 MHz Not Available with FCC...

Страница 13: ...Useful for testing radio operation 03 2512A01 Order Wire Module External device that allows temporary voice communication Useful during setup testing of the radio system 02 1297A01 Order Wire Handset...

Страница 14: ...data often represented by a one or a zero Eight bits plus start stop and parity bits usually comprise a byte Bits per second See BPS BPS Bits per second A measure of the information transfer rate of d...

Страница 15: ...feature used to prevent data buffer overruns when handling high speed data from the RTU or PLC When the buffer approaches overflow the radio drops the clear to send CTS line which instructs the RTU o...

Страница 16: ...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 Programmable Logic...

Страница 17: ...te the installation More detailed explanations appear at the end of these steps 1 Mount the transceiver to a stable surface using the brackets supplied with the radio 2 Install the antenna and antenna...

Страница 18: ...n with a minimum of software configuration required in most cases The selections that must be made for new installations are Transmit frequency Receive frequency The operating frequencies are not set...

Страница 19: ...ds on the physical size and layout of the radio system A direc tional Yagi Figure 8 or corner reflector antenna is generally recom mended at remote sites to minimize interference to and from other use...

Страница 20: ...oss in Coaxial Cables at 400 MHz Cable Type 10 Feet 3 05 Meters 50 Feet 15 24 Meters 100 Feet 30 48 Meters 500 Feet 152 4 Meters RG 8A U 0 51dB 2 53 dB 5 07 dB 25 35 dB 1 2 inch HELIAX 0 12 dB 0 76 dB...

Страница 21: ...nnector Use only the required pins for the application Damage may result if improper connections are made Typical applica tions require the use of only Pins 1 through 8 for EIA 232 signaling 3 6 Using...

Страница 22: ...gnal through a 2 5 k resistor 7 Signal Ground Connects to ground negative supply potential at radio s PC board 8 OUT DCD Data Carrier Detect Goes high when the modem detects a data carrier from the ma...

Страница 23: ...power for low current accessories Excessive drain on this connection will trip self resetting fuse F1 on the transceiver PC board The voltage at this pin will match the input voltage to the transceiv...

Страница 24: ...NTER FACE connector Note Readings are not accurate for incoming signal strengths above 50 dBm Invisible place holder Figure 9 RSSI vs Vdc Typical PWR DCD TXD RXD Table 5 LED Status Indicators LED Name...

Страница 25: ...mation about the terminal refer also to the instructions included with each HHT kit The steps below assume that the HHT has been configured for use with the transceiver 80 character screen display If...

Страница 26: ...nadvertently altered 1 Plug the HHT into the DIAG connector Enable the setup mode by pressing the and keys in sequence The display shown in Figure 11 appears Invisible place holder Figure 11 HHT Setup...

Страница 27: ...he key to edit information or commands entries The flashing square cursor indicates that letter mode is selected The flashing superscript rectangular cursor indicates that number mode is selected Erro...

Страница 28: ...name Function AMASK 0000 0000 FFFF FFFF Details page 22 Set or display hex code identifying which events trigger an alarm ASENSE HI LO Details page 23 Set or display the state of the alarm output sign...

Страница 29: ...Set or display the transmit power setting RSSI Details page 28 Display the Received Signal Strength Indication RTU ON OFF 0 80 Details page 28 Re enables or disables the radio s internal RTU simulator...

Страница 30: ...e events will activate the alarm output signal Entering the AMASK command alone displays the current setting of alarm events in hexadecimal format Entering the AMASK command followed by an eight digit...

Страница 31: ...be one of the following speeds 110 300 1200 2400 4800 9600 19200 or 38400 The second parameter of the BAUD command abc is a three character block indicating how the data is encoded a Data bits 7 or 8...

Страница 32: ...ly for applications where the transmitter s baud rate is greater than or equal to the receiver s baud rate Enforcement of this rule is left up to the user CKEY ON OFF The CKEY command enables or disab...

Страница 33: ...CTS is asserted immediately following the receipt of RF data but data will not be sent out the DATA INTERFACE port until after the CTS programmable delay time has expired This gives the other radio t...

Страница 34: ...the radio s operating parame ters to the factory defaults This may be helpful when trying to resolve configuration problems that may have resulted from the entry of one or more improper command settin...

Страница 35: ...nd to display or program an owner s message To pro gram the owner s message type OWM then the message followed by To display the owner s message type OWM then The owner s message appears on the displa...

Страница 36: ...espond to The internal RTU can be used for testing system payload data or pseudo bit error rate testing It can be helpful in isolating a problem to either the external RTU or the radio RX xxx xxxx Thi...

Страница 37: ...er output SNR This command continuously displays the signal to noise ratio of the received signal expressed in dB until you press the Enter key As used in this guide the signal to noise measurement is...

Страница 38: ...new keying command is accepted The default timer value is 30 seconds TX xxx xxxx This command selects or displays the radio s transmit frequency in MHz The frequency step size is 6 25 kHz If the custo...

Страница 39: ...ected Table 5 on page 16 describes the function of each status LED 6 2 Event Codes When an alarm condition exists the transceiver creates a code that can be read on an HHT connected to the DIAG port T...

Страница 40: ...internal programmable synthesizer loops is reporting an out of lock condition 06 Major An unrecoverable fault was detected on the auto D chip The radio will not receive data 07 Major One or more of th...

Страница 41: ...113 dBm at 10 2 BER normal1 107 dBm at 10 2 BER extreme2 MDS x710C 108 dBm at 10 2 BER normal1 102 dBm at 10 2 BER extreme2 Co Channel Rejection 18 dB Adjacent Channel Selectivity 60 dB normal1 50 dB...

Страница 42: ...GHz to 12 5 GHz Transmitter Spurious Radiated Emissions 36 dBm 73 dBc 9 kHz to 1 GHz 30 dBm 67 dBc 1 GHz to 12 5 GHz Harmonics 2nd harmonic 73 dBc 3rd harmonic higher 67 dBc Power 50 dBc Time out Time...

Страница 43: ...olarized locking connector Fuse 4 Amp Polyfuse Self Resetting Internal Remove Primary Power to Reset Reverse Polarity Protection Diode across primary input ENVIRONMENTAL Humidity 95 at 40 degrees C Te...

Страница 44: ...nded no stronger than 60 dBm This can be done with a signal generator or an over the air signal 4 Measure the radio s RSSI using one of the following methods With an HHT See Section 5 0 TRANSCEIVER PR...

Страница 45: ...ata transmission can be per formed To perform diagnostics without interrupting payload data trans mission connect the PC to a radio defined as the root radio A radio is defined as a root radio using t...

Страница 46: ...required If desired an adapter cable may be constructed from scratch using the information shown in Figure 15 Invisible place holder Figure 15 RJ 11 to DB 9 Adapter Cable 7 Launch the MDS InSite appli...

Страница 47: ...rapidly confirming that a download is in process The download takes about two minutes NOTE If a download fails the radio is left unprogrammed and inop erative This is indicated by the PWR LED flashin...

Страница 48: ...mW 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...

Страница 49: ...MDS 05 3305A01 Rev B MDS 4710 9710 I O Guide 41 NOTES...

Страница 50: ...42 MDS 4710 9710 I O Guide MDS 05 3305A01 Rev B...

Страница 51: ...er KEY command 25 DLINK enable disable network wide diagnostics 25 DMGAP set time to wait between characters 25 DTYPE set radio to root or node for diagnostics 26 DUMP display all programmed settings...

Страница 52: ...g defined 7 DSR pinout Pin 6 14 DTE Data Terminal Equipment defined 7 DTYPE command 26 use of 37 DUMP command 26 E EEPROM FAILURE error message 20 Enable disable continuous keying CKEY command 24 diag...

Страница 53: ...ated 4 9710A illustrated 4 displaying MODEL command 27 MODEM command 27 Modem set speed See MODEM command N Network wide diagnostics active messaging defined 6 defined 8 enable disable DLINK command 2...

Страница 54: ...21 15 vs Vdc illustrated 13 16 RTS pinout Pin 4 14 RTU command 28 RTU Remote Terminal Unit defined 8 remote reset Pin 15 15 RUS pinout Pin10 14 RX command 28 RXD LED description 16 Pin 3 14 RXTOT comm...

Страница 55: ...r operation 10 connectors and indicators illustrated 1 diagnostics using PC software 38 dimensions mounting 11 mounting 9 11 programming 17 30 specifications 33 35 upgrading software 38 Transmit Audio...

Страница 56: ...I 6 MDS 4710 9710 I O Guide MDS 05 3305A01 Rev B...

Страница 57: ...st equipped to diagnose repair and align your radio to its proper operating specifications If return of the equipment is necessary you will be issued a Returned Material Authorization RMA number The R...

Страница 58: ...175 Science Parkway Rochester New York 14620 General Business 1 716 242 9600 FAX 1 716 242 9620 Web www microwavedata com...

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