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Trango Broadband Wireless Access5830™  User Manual 

 

 

 

User Manual Rev 1

 

17

 

 

Target RSSI From SU

: This parameter specifies the target RSSI from all SU’s to 

the AP.  Based on this parameter, the AP can power level each SU so that it 

receives same level of signal strength from all SU’s, regardless far or near.  

Please note that when you set the Target RSSI from SU, you need to consider 
AP’s rfrxthreshold.  If the rfrxthreshold were higher than the Target RSSI From 

SU (says –70dBm for rfrxthreshold and  –75dBm for Target RSSI From SU), the AP 

would never be able to hear from these SU’s. 

 

We must set the Target RSSI From SU 

5dB

 higher than the rfrxthreshold.  When 

the rfrxthreshold is 

disabled

, the setting of Target RSSI from SU shall be no less 

than 

–75dBm

 

MIR Threshold

: This parameter serves 2 purposes.  1) Enable/Disable the MIR 

Threshold; 2) Specify the MIR threshold.   

 

??

When MIR Threshold is disabled, the AP will serve MIR for all its SU’s. 

??

When MIR Threshold is activated, and the network traffic exceeds the 

MIR threshold, the AP will only serve CIR for all its SU’s.   

??

When MIR Threshold is activated, and the network traffic does NOT 

exceed the MIR threshold, the AP will still serve MIR for all its SU’s. 

 

 

Site Survey

 Page: 

 

This HTML page is used to verify the RF environment the AP is operated in.  To 

start the survey, please specify the duration of the test (in minutes), and the 

channel polarization, then click the 

Start Survey Button

 

Please note that the radio 

must

 be on 

off

 mode to do site survey. 

 

Summary of Contents for M5830S-SU-EXT

Page 1: ...A Access5830 Series User Manual Draft January 2003 Trango Broadband Wireless 15070 Ave of Science Ste 200 San Diego California 92128 T 858 653 3900 F 858 621 2725...

Page 2: ...lled and used in accordance with these instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation I...

Page 3: ...l Installation 8 4 3 Wiring 10 4 4 Antenna Alignment 10 4 5 Grounding 11 5 Setup 12 5 1 Step by Step Configuration of The AP 12 5 2 Step by Step Configuration of The SU 23 6 Site Planning 28 7 Adminis...

Page 4: ...present when the transmitter is on 2 Welcome Thank you for choosing Trango Broadband Wireless to fulfill your wireless Internet access needs You are now on your way to using a high speed wireless link...

Page 5: ...scriber Unit Radio 1 M5830S SU EXT Access5830 TM Quick Setup Check List 1 LT 9009 V shaped Mounting Brackets 2 ES 9181 Threaded 5 16 x 3 Studs for Mounting Brackets 4 H 91xx Hex Bolts 5 16 for Mountin...

Page 6: ...oprietary polling mechanism to dynamically allocate bandwidth to the SUs on an as needed basis based upon service level agreement SLA rules CIR and MIR The system has a maximum service radius of 20 mi...

Page 7: ...oltage to J Box OK 2 NET port RJ45 3 Indicates AP or SU drawing current 4 ODU port RJ 45 5 Power port 20 Vdc 1 2 3 4 5 1 Subscriber Unit 2 Antenna ports H V 3 Mounting bolt and nuts 4 built in 4 V bra...

Page 8: ...APC provides equipment to accomplish this 4 1 Access Point Mechanical Installation 1 Mount the arm to an earth grounded mast or secured wall U bolts required for mast mount 2 Mount the AP to the moun...

Page 9: ...s the offset point and direct the SU antenna up or down until the RSSI is acceptable 10 Slightly adjust the dish antenna up and down left and right until the strongest RSSI is reached Then tighten dow...

Page 10: ...radio to PC hub switch is 100 meters 328 feet Since power is sent over four of the unused conductors in the 8 conductor STP the resistance is reduced significantly reducing the voltage drop along the...

Page 11: ...a Hyperterminal session 2 Read the RSSI level continuously rssi channel polarization Hit space bar and enter to escape ii View the yellow LED indicator in the box This is an approximate reading and th...

Page 12: ...nd add a measure of shielding 5 Setup Configuration of the AP and SU units must be done prior to deployment In this 1 5 firmware release we introduce this new feature of performing the configuration v...

Page 13: ...dash status lower left circled and content rest of the page Navigation Provide browsing capability to different pages Status Provide status on off of the radio Content Provide contents of a specific p...

Page 14: ...below The same Base ID can be re used every seven clusters AP ID This parameter is currently NOT used The planning of AP ID can be found in the diagram below IP Address The parameter specifies IP add...

Page 15: ...the switch is turned on all SU s that want to communicate with each other have to be assigned to the same group See SU to SU Group Switch Broadcast Time Stamp to SU This parameter is NOT used at this...

Page 16: ...ough 11 are fixed and cannot be changed Keep in mind that channel width is 20MHz and the frequency specified here is the center frequency For example channel 1 5736MHz means that channel 1 starts at 5...

Page 17: ...old When the rfrxthreshold is disabled the setting of Target RSSI from SU shall be no less than 75dBm MIR Threshold This parameter serves 2 purposes 1 Enable Disable the MIR Threshold 2 Specify the MI...

Page 18: ...1 18 The result of the survey will look something like below yes indicates clean channel while no indicates noisy channel A channel is clean when the Avg dBm and Peak dBm of a signal is 8dB weaker tha...

Page 19: ...the result As the network latency varies based on the number of subscriber units the AP serves priority user is guaranteed that the latency is NOT greater than 100ms regardless of the size of the net...

Page 20: ...criber from the subscriber database one at a time Link Control Page This HTML page is used to verify the link between an AP and SU after the minimum setup is done which includes the Configuration page...

Page 21: ...un time in minutes then click the Loopback Test button Once the test is completed the test result is shown as follows SU Ranging RSSI Test In this test as shown in the figure below following data will...

Page 22: ...ands In addition to the Command Console you can also run these commands via TELNET or hyper terminal The setting for hyper terminal is 9600 8 N 1 no flow control To telnet or hyper terminal into the r...

Page 23: ...overhead introduced to the wireless link Switch Auto Scan AP This switch enables disables the SU to look for another AP on a different channel when the previous link with an AP is down This redundancy...

Page 24: ...h is 20MHz and the frequency specified here is the center frequency For example channel 1 5736MHz means that channel 1 starts at 5726MHz and ends at 5746MHz Please remember that the settable frequency...

Page 25: ...y Page This HTML page is used to verify the RF environment the SU is operated in To start the survey please specify the duration of the test in minutes and the channel polarization then click the Star...

Page 26: ...1 26 The result of the survey will look something like below yes indicates a clean channel while no indicates a noisy channel A channel is clean when the Avg dBm and Peak dBm of a signal is 8dB weaker...

Page 27: ...g for hyper terminal is 9600 8 N 1 no flow control To telnet or hyper terminal into the radio a password is required The defaulted password is trango Important Note While the SU is in su mode it does...

Page 28: ...his feature limits the sensitivity of the receiver section of the radio preventing the radio from hearing distant transmitters and attempting to lock to them This is one of the most powerful ways to a...

Page 29: ...SU may be set up to automatically scan a programmable set of channels and polarizations changing the channel and polarization of a given sector is very simple and may be done at any time with a minimu...

Page 30: ...6H 1V 3H 5V 2H 4V 6H 1V 3H 5V 2H 4V 6H 1V 3H 5V 2H 4V 6H 1V 3H 5V 2H 4V 6H 1V 3H 5V 2H 4V 6H 1 4 V 2 5 H 3 6 V 1 4 H 2 5 V 3 6 H 1 4 V 2 5 H 3 6 V 1 4 H 2 5 V 3 6 H 1 4 V 2 5 H 3 6 V 1 4 H 2 5 V 3 6 H...

Page 31: ...f the link The general equations are as follow Required system gain Free space loss FSL fading margin allowance FM Calculated system gain Transmit antenna gain dB transmit power dBm receive antenna ga...

Page 32: ...large packets i e 1600 bytes the sensitivity is about 83 dBm worst case This characteristic improves the fading margin for smaller packets The packet size is determined by the Ethernet MAC layer and...

Page 33: ...ink will generally behave as a line of sight link Therefore the direct path must have 6 x 28 43 17 feet of clearance around it to achieve line of sight performance Each antenna must be mounted this hi...

Page 34: ...gh several trees towards a tower Loss 0 2 x 5800 0 3 x 10 0 6 10 7 dB A fade margin of 12 dB in this case appears to be sufficient but it is prudent to add more fading margin on the order of 10 dB to...

Page 35: ...s assuming no other impairments to the link have occurred such as misaligned antenna etc The M5830S SU EXT with 31 dBi dish is designed to operate with a maximum radius of 20 miles using a fade margin...

Page 36: ...SU in the coverage area Verify that there are no packets being lost except by the AP Typical numbers vary with packet size and transmission distance but as an example with 1600 byte packets at under...

Page 37: ...database of SU entries into the AP database you need to create a subscriber database in ASCII text file format As shown below each row represents all information for one SU Each column is an informati...

Page 38: ...es on the junction box If not check the cable from the junction box to the AP or SU It must be 8 conductor Cat 5 24 AWG STP Also verify the connection of the 20 Volt power adapter to the junction box...

Page 39: ...the SU Verify wiring to PC or switch Verify subnet mask on PC is set correctly Make sure that opmode is off Real time clock not working Open the cover of the radio 12 screws and replace the Battery wi...

Page 40: ...If packets are being lost some potential remedies to the problem are Try a different channel or polarization re orient the SU antenna look for sources of RF interference in the vicinity of the SU and...

Page 41: ...efault settings and errors can be expected below 83 dBm Poor data throughput Run testrflink command to check for lost packets If the tests are ok verify the third party FTP program buffers and PC sett...

Page 42: ...fail Some technologies require peak signal to interferer ratios of at least 20 dB which means that the interfering signal must be 20 dB less than the desired signal or data loss will occur 9 1 2 Anten...

Page 43: ...mit grants for the SU The SU will then stop on that channel and respond to the AP using maximum RF power Before the AP can add the SU to the polling list it must authenticate the SU by verifying the M...

Page 44: ...his device must be installed to provide a separation distance of at least 20cm from all persons to satisfy RF exposure compliance This label will be placed on the antenna or on the device so that it i...

Page 45: ...re File Release Date M5830S AP 60 Rev 1 Original Release V1 0 Main AP_1p5H8002xxxxxxxxxx S19 12 15 02 FPGA Vxxxxxxx HEX Checksum TBD M5830S SU Rev 1 Original Release V1 0 Main SU_1p5H0002Dxxxxxxxx S19...

Page 46: ...Trango Broadband Wireless Access5830 User Manual User Manual Rev 1 53 Hardware Model Firmware Release Firmware File Release Date...

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