Microwave Data Systems MDS entraNET 900 System Manual Download Page 4

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MDS entraNET 900 System Guide (Preliminary)

MDS 05-4055A01, Rev. A

2.5.1 Overview ................................................................................................................................... 31

2.5.2 Serial Data Port Conﬁguration Menu ........................................................................................ 32

2.5.3 IP-to-Serial Application Example .............................................................................................. 36

2.5.4 Point-to-Point Serial-to-Serial Application Example .................................................................. 37

2.5.5 Point-to-Multipoint Serial-to-Serial Application Example .......................................................... 39

2.5.6 Mixed Modes ............................................................................................................................ 40

2.6 SECURITY CONFIGURATION ........................................................................................... 42

2.6.1 Approved Remotes/Access Points List Menu ........................................................................... 44

2.7 PERFORMANCE VERIFICATION ...................................................................................... 44

2.7.1 Performance Information Menu ................................................................................................ 45

2.7.2 Network Performance Notes .................................................................................................... 54

2.8 MAINTENANCE.................................................................................................................. 58

2.8.1 Reprogramming Menu .............................................................................................................. 58

2.8.2 Conﬁguration Scripts Menu
............................................................................................................................................................ 63

2.8.3 Authorization Keys Menu .......................................................................................................... 71

2.8.4 Radio Test Menu ....................................................................................................................... 71

2.8.5 Ping Utility Menu ....................................................................................................................... 73

TABLETOP EVALUATION AND TEST SETUP

3.1 OVERVIEW ......................................................................................................................... 77

3.2 STEP 1—INSTALL THE ANTENNA CABLING................................................................... 77

3.3 STEP 2—MEASURE & CONNECT THE PRIMARY POWER ............................................ 78

3.4 STEP 3—CONNECT PC TO THE MDS entraNET 900 ...................................................... 78

3.5 STEP 4—REVIEW THE MDS entraNET 900’S CONFIGURATION ................................... 79

3.5.1 Getting Started ......................................................................................................................... 79

3.5.2 Procedure ................................................................................................................................. 79

3.5.3 Basic Conﬁguration Defaults .................................................................................................... 79

3.6 STEP 5—CONNECT LAN AND/OR SERIAL EQUIPMENT ............................................... 81

3.7 STEP 6—CHECK FOR NORMAL OPERATION................................................................. 82

TROUBLESHOOTING & RADIO MEASUREMENTS

4.1 TROUBLESHOOTING ........................................................................................................ 87

Summary of Contents for MDS entraNET 900

Page 1: ...System Guide Wireless IP Ethernet Transceivers Firmware Release 1 x MDS entraNET Microwave Data Systems Inc Access Point Serial Remote Ethernet Remote MDS 05 4055A01 Rev A PRELIMINARY April 2003 ...

Page 2: ......

Page 3: ...T 900 Networks 9 1 4 MDS entraNET 900 SECURITY TECHNIQUES AND TOOLS 10 1 4 1 Intrusion Detection via SNMP Traps 11 1 5 ACCESSORIES 11 2EMBEDDED MANAGEMENT SYSTEM 17 2 1 INTRODUCTION 15 2 1 1 Menu Structure 16 2 1 2 Differences in the User Interfaces 18 2 1 3 Accessing the Embedded Management System 19 2 1 4 Navigating the Menus 20 2 1 5 Logging In and Out of the Embedded Management System 21 2 2 B...

Page 4: ...etwork Performance Notes 54 2 8 MAINTENANCE 58 2 8 1 Reprogramming Menu 58 2 8 2 Conﬁguration Scripts Menu 63 2 8 3 Authorization Keys Menu 71 2 8 4 Radio Test Menu 71 2 8 5 Ping Utility Menu 73 3 TABLETOP EVALUATION AND TEST SETUP 3 1 OVERVIEW 77 3 2 STEP 1 INSTALL THE ANTENNA CABLING 77 3 3 STEP 2 MEASURE CONNECT THE PRIMARY POWER 78 3 4 STEP 3 CONNECT PC TO THE MDS entraNET 900 78 3 5 STEP 4 RE...

Page 5: ... MDS iNET 900 NETWORK 5 1 INSTALLATION 103 5 1 1 General Requirements 103 5 1 2 Site Selection 105 5 1 3 Terrain and Signal Strength 105 5 1 4 Antenna Feedline Selection 106 5 1 5 Conducting a Site Survey 108 5 1 6 A Word About Radio Interference 108 5 1 7 How Much Output Power Can be Used 110 5 2 dBm WATTS VOLTS CONVERSION CHART 112 5 PLANNING AN MDS iNET 900 NETWORK 6 1 REMOTE TRANSCEIVER COMMAN...

Page 6: ...ld rely on MDS based wireless networks to manage their most critical assets The majority of MDS radios deployed since 1985 are still installed and performing within our customers wireless net works That s because we design and manufacture our products in house under an ISO 9001 registered quality system which allows us to control and meet stringent global quality standards Thanks to our durable pr...

Page 7: ...oid the approval A power connector with screw type retaining screws as supplied by MDS must be used Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous Refer to Articles 500 through 502 of the National Electrical Code NFPA 70 for further information on hazardous locations and approved Division 2 wiring methods FCC Part 15 Notice The transceiver c...

Page 8: ...vi MDS entraNET 900 System Guide Preliminary MDS 05 4055A01 Rev A ...

Page 9: ...ckhaul for Serial Radio Networks 6 1 2 4 Multiple Protocols and or Services 7 1 2 5 Wireless LAN with Extended Range 8 1 2 6 Upgrading Older Wireless Network with Serial Interfaces 8 1 3 NETWORK DESIGN CONSIDERATIONS 10 1 3 1 Extending Network Coverage with Repeaters 10 1 3 2 Protected Network Operation through Multiple Access Points 12 1 3 3 Collocating Multiple Wireless Networks 13 1 4 SECURITY ...

Page 10: ...2 MDS entraNET 900 System Guide Preliminary MDS 05 4055A01 Rev A ...

Page 11: ...d from direct exposure to the weather The transceivers are supplied with optional flat surface or 35 mm DIN rail mounting brackets depending on customer requirements Simple Installation Basic installation typically employs an omni directional antenna at the Access Point location and a directional antenna at each associated Remote The antenna is a vital link in the system and must be chosen and ins...

Page 12: ...2 based hardware to the faster and more easily interfaced Ethernet world Flexible Management Configuration commissioning troubleshooting and other maintenance activities can be done locally or remotely Four different modes of access are available local RS 232 console local or remote IP access through Telnet web browser access and via SNMP The text based interfaces RS 232 console and Telnet are imp...

Page 13: ...ions between a central WAN LAN and remote Ethernet segments The operation of the radio system is trans parent to the computer equipment it is connected to The Access Point is positioned at a location from which it can commu nicate with all of the Remote units in the system Commonly this is a relatively high location on top of a building or communications tower Messages are exchanged at the Etherne...

Page 14: ...ols Both data streams are completely independent and the transceiver provides seamless simultaneous operation as shown in Figure 1 3 on Page 6 Invisible place holder Figure 1 3 Multiple Protocol Network By using a single AP the cost of infrastructure deployment is cut in half with only one antenna one feedline and one lightning protector required Other cost reductions come from the system as a who...

Page 15: ...connected to MDS entraNET 900 units through the COM1 or COM2 port with a DB 25 to DB 9 cable wired for EIA 232 signaling The COM2 port supports all standard EIA 232 signaling and acts as a data terminal equipment device DTE Several previous MDS brand products had non standard signal lines on their interface connectors for example to control the unit sleep func tion These special functions are not ...

Page 16: ...ocation is often on top of a hill or other elevated terrain from which both sites can be seen by the repeater station antennas A detailed discussion on the effects of terrain is given in Section 5 1 2 Site Selection beginning on Page 105 Using a Remote as a Store and Forward Repeater A wireless network can be extended through the use of an alternate arrangement using the Access Point as a repeater...

Page 17: ...ty of the time Although some col lisions will occur the wireless MAC is built to tolerate and recover from such occurrences with minimal degradation 1 3 3 Co locating Multiple Networks Many wireless networks can operate in relatively close physical prox imity to one another providing reasonable measures are taken to assure the radio signal of one Access Point is not directed at the antenna of the ...

Page 18: ...hat does not work consult with MDS technical support personnel about other techniques for controlling radio fre quency interference between the radios See A Word About Radio Interference on Page 108 for more details 1 4 SECURITY TECHNIQUES TOOLS Today the operation and management of an enterprise is becoming increasing dependent on electronic information flow An accompanying concern becomes the se...

Page 19: ...ordering details Denial of service where Remote radios could be reconfigured with bad parameters bringing the network down Remote login Local console login Disabled HTTP Telnet to allow only local management services Airsnort and other war driving hackers in parking lots etc 900 MHz FHSS does not talk over the air with standard 802 11b cards The transceiver cannot be put in a promiscuous mode Prop...

Page 20: ...es threaded locking screws to prevent accidental disconnect 73 1194A39 Ethernet RJ 45 Straight thru Cable CAT5 Cable assembly used to connect an Ethernet device to the transceiver Both ends of the cable are wired identically Cable length 3 ft 1M 97 1870A20 EIA 232 Shielded Data Cable Shielded cable terminated with a DB 25 male connector on one end and a DB 9 female on the other end Two lengths ava...

Page 21: ...NETWORK PARAMETERS 31 2 3 1 Network Conﬁguration Menu 31 2 4 CONFIGURING RADIO PARAMETERS 35 2 4 1 Radio Conﬁguration Menu 36 2 5 CONFIGURING THE SERIAL INTERFACES 39 2 5 1 Overview 39 2 5 2 Serial Data Port Conﬁguration Menu 40 2 5 3 IP to Serial Application Example 43 2 5 4 Point to Point Serial to Serial Application Example 44 2 5 5 Point to Multipoint Serial to Serial Application Example 46 2 ...

Page 22: ...14 MDS entraNET 900 System Guide Preliminary MDS 05 4055A01 Rev A 2 8 4 Radio Test Menu 78 2 8 5 Ping Utility Menu 80 ...

Page 23: ...les is available for download from the Microwave Data Systems Web site at www microwave data com service technical support downloads A brief summary of SNMP commands can be found at SNMP Configuration section on Page 28 The entraNET Management System and its functions are divided in this guide into five functional groups that are listed below Section 2 3 CONFIGURING NETWORK PARAMETERS beginning on...

Page 24: ... Network Configuration Device Mode Network Name Serial Data Statistics Com2 Serial Data Port Serial Configuration Com1 Serial Data Port Starting Information Screen IP Address IP Netmask IP Gateway Wireless Address Device Mode Device Name Network Name IP Address Uptime Hardware Version Firmware Version Serial Number Device Status SNTP Server DHCP Client Com1 Data Statistics Clear Com1 Statistics By...

Page 25: ...mware Radio Test Ping Utility Test Mode Frequency TX Output Power TxKey RSSI Time Remaining IP Addr Count Packet Size Go Actual Data Rate Security Configuration User Password Provisioning Telnet Access Approved Remotes List on AP Delete Remote Add Associated Remotes Delete All Remotes View Approved Remotes Add Remote Approved Access Points List on Remote Delete Access Point Add Current Access Poin...

Page 26: ...e same You will find a few differences in capabilities the communications tool is driven by limitations of the access channel Below are samples of the Starting Information Screen seen through a terminal and a Web browser Invisible place holder Figure 2 3 View of entraNET MS with a text based program Terminal or Telnet Invisible place holder Figure 2 4 View of the entraNET MS with a Browser ...

Page 27: ...emulator program such as HyperTerminal on the computer Configure it to 19 200 bps data rate 8 bit charac ters no parity one stop bit and no flow control Use ANSI or VT100 emulation c Press the ENTER key A login screen will be displayed that will require a user name and password to access the Management System User entraNET default password admin The radio will respond with a login screen followed ...

Page 28: ...NET password admin e The transceiver responds with the startup menu screen See Figure 2 6 on Page 23 NOTE If the default address of 192 168 1 1 does not work use the terminal emulator procedure to communicate with the unit through the COM1 port The current IP address will be displayed on the Starting Information Screen Figure 2 6 on Page 23 2 1 4 Navigating the Menus Navigating with a Web browser ...

Page 29: ...ESCAPE key to exit the action without implementing any changes or to navigate to the next higher level menu 2 1 5 Logging In and Out of the Embedded Management System Logging in via Telnet or a Web Browser When you use Telnet or a Web browser to communicate with the trans ceiver you will need to know the unit s IP address the User Name and Password in advance With some Web browsers the User Name e...

Page 30: ...ansmits messages in clear text Logging Out of the entraNET Management System For security reasons it is best to formally log out of the entraNET Man agement System If you do not formally log out the session will be ter minated within 10 minutes of your last activity with the system Web Browser To logout of the entraNET MS with a Web browser click on the Logout listing in the left hand frame of the...

Page 31: ... condition Invisible place holder Figure 2 6 Starting Menu Device Mode Current operating mode of the unit as it relates to the network Device Name This is a user defined parameter that will appear in the heading of all pages To change it see Network Configuration Menu on Page 27 Network Name The name of the network in which the unit is associated IP Address Unit s IP address 192 168 1 1 Device Sta...

Page 32: ... the Device Status field as seen in Figure 2 6 Pressing the A key on your keyboard will take you directly to the Current Alarms screen Uptime Elapsed time since the transceiver was powered up Firmware Version Version of firmware that is currently active in the unit Hardware Version Hardware version of the transceiver printed circuit board Serial Number Make a record of this number It must be provi...

Page 33: ...ransceiver environment See SECURITY CONFIGURATION on Page 42 Device Information Top level user specific and defin able parameters such as unit password See Device Informa tion Menu on Page 25 Performance Information Tools to measure the radio and data layer s performance of the network See Performance Information Menu on Page 45 Maintenance Tools Tools to use configuration files change firmware an...

Page 34: ...menu item is always accessible via a terminal connected to the COM1 Port and via Telnet if access enabled in the unit s Security Configuration Menu Page 42 Device Names Menu Fields used at user s discretion for general administrative purposes The Device Name field is used by the transceiver as the Realm name for network security and in the entraNET MS screen headings See Figure 2 9 on Page 27 Date...

Page 35: ...three parameters that should be reviewed and changed as necessary before placing an trans ceiver in service Device Mode IP Address and Network Name Screens for both the Access Point and Remote units are shown below Invisible place holder Figure 2 10 Network Configuration Menu From Access Point Network Name User Review Required Name of the network of which this unit will be a part Essential for ass...

Page 36: ... from any DHCP server available on the LAN Disabled Ethernet Link Watch Access Point Only Detects the lack of activity no traffic through the Ethernet port in the spec ified time period If the period expires then all Remotes are dis sociated and expected to re associate with an alternate AP The current AP will broadcast a beacon indicating its NOT AVAILABLE status so Remotes that hear him do not t...

Page 37: ...signal levels 79 dBm RSSI including a 15 dB fade margin Data throughput will be reduced in the presence of interference due to retransmissions The data rate value for Access Points is displayed as AP This shows that the AP is varying the communication speed with each Remote depending on the received signal strength from each station 115 2 AUTO AUTO Dwell Time Duration of one hop on a particular fr...

Page 38: ...bled before being delivered over the Ethernet interface at the receiving end Use smaller values on high interference locations See Network Performance Notes on Page 54 256 1600 bytes 1600 TIP In an interference free environment this value should be large to maximize throughput If interference exists then the value should be set to smaller values The smaller the packet the less chance of it being i...

Page 39: ... representative for new additions Skip Zones Editable at Access Point Only Display of current utilization of zones Each zone consists of eight RF channels See Skip Zone Options Menu on Page 31 Skip Zone Options Menu Invisible place holder Figure 2 12 Skip Zones Menu Commit changes displayed only on Access Point units This is a display of current utilization of 10 zones each of eight RF operating f...

Page 40: ...ample which follows shows how to provide multicast services See Point to Multipoint Serial to Serial Application Example on Page 39 On the other hand TCP services are best suited for applications that do not have a recovery mechanism error correction and most have the guaranteed delivery that TCP provides despite the extra overhead The IP to Serial example shows how to do this See IP to Serial App...

Page 41: ...ngs and streamline complex configurations 2 5 2 Serial Data Port Configuration Menu The first two menu present the identical parameter fields for each port with one exception Flow Control This is available only on Com2 Figure 2 13 COM1 2 Serial Data Port Configuration Menu Serial Configuration Wizard Tool for configu ration of serial ports using a step by step process Com1 Serial Data Port For add...

Page 42: ...ce signaling parameters Data bits parity and stop bits 7N1 7E1 7O1 8N1 8E1 8O1 8N1 Flow Control Com2 Only Access Point Only RTS CTS handshaking between the transceiver and con nected device Enable Disable Disabled Seamless Mode If data buffering is Enabled the radio will operate in seamless mode Data bytes will be sent over the air as quickly as possible but the receiver will buffer the data until...

Page 43: ...through the serial port To reach multiple Remotes in the network use a multicast address at the AP Remotes in the network should have the multicast address programmed in their Send to Address Any legal IP address 0 0 0 0 Send to Port The IP port to which data packets received from the device connected to the transceiver should be sent Any valid IP port COM1 30010 COM2 30011 Receive on Port Receive...

Page 44: ...uld follow bytes In On Socket Clear Com1 Statistics Resets counter to zero Clear Com2 Statistics Resets counter to zero 2 5 3 IP to Serial Application Example You have a choice to use UDP or TCP to establish communications This will depend on the type of device you are communicating with at the other end of the IP network In this example we will use TCP to illus trate its use In TCP mode the trans...

Page 45: ... and the changes have been exe cuted they begin processing any data presented at the COM ports Data presented at the Access Point s COM port will be packetized and sent via UDP to the Remote Upon receiving the packet the Remote strips the data out of the UDP packet and sends it out its COM port Likewise data presented at the Remote s COM port is packetized sent to the Access Point stripped and sen...

Page 46: ... Mode Disabled Delimiter Chars 0 Buffer Size 0 IP Protocol UDP Send to Address 192 168 0 2 IP address of the entraNET Remote Send to Port 30011 Receive on Port 30011 Not used Receive on Address 0 0 0 0 Not used Remote Unit COM2 1 Status Enabled Data Baud Rate 9 600 Example Flow Control X ON X OFF Example Seamless Mode Disabled Delimiter 0 Characters Buffer Size 0 Characters IP Protocol UDP Send to...

Page 47: ...ce holder Figure 2 18 Point to Multipoint Serial to Serial Application Diagram Invisible place holder 192 168 0 3 192 168 0 4 EIA 232 Terminal or Computer RTU RTU RTU EIA 232 EIA 232 EIA 232 192 168 0 10 192 168 0 1 192 168 0 2 iNET 900 Access Point LA N COM 1 COM 2 PW R LIN K iNET 900 Remote LA N COM 1 COM 2 PW R LIN K iNET 900 Remote LA N COM 1 COM 2 PW R LIN K iNET 900 Remote Table 2 3 Serial P...

Page 48: ...te 2 port 30011 Communicate with RTUs C and D by sending and receiving data from the Access Point s COM port All communication paths can be used simultaneously Invisible place holder Figure 2 19 Mixed Modes Application Diagram Send to Port 30011 Receive on Port 30011 Receive on Address 224 254 1 1 Multicast Address2 1 Either COM port can be used but they must be the same ones at both ends of the l...

Page 49: ... such as 224 254 1 1 Send to Port 30011 Receive on Port 30011 Receive on Address 0 0 0 0 Not Used Remote Units 1 2 COM2 Status Enabled Baud Rate 2 400 Flow Control Disabled IP Protocol TCP Receive on Port 30011 Remote Units 3 4 COM2 Status Enabled Baud Rate 9 600 Flow Control Disabled IP Protocol UDP Send to Address IP address of the entraNET AP Send to Port 30011 Receive on Port 30011 Receive on ...

Page 50: ... List Encryption Enable encryption of over the air data pack ets Enabled Disabled Disabled Enabling forces the transceiver to use 128 bit encryption on all over the air messages This option requires the Encryption Phrase to be previously configured Auto Key Rotation Enable automatic rotation of encryption keys Enabled Disabled Disabled Enabling forces the transceiver to use the key rotation algori...

Page 51: ...do it automatically HTTP Security Mode Select security mode level of login via HTTP browser HTTP Access disabled prevents access through HTTP HTTP Security Mode is functional if HTTP Access is enabled Basic Auth MD5 Digest Basic Auth Basic mode requires a password but the actual password text is transmitted in the clear unencrypted MD5 is the most secure MD5 Digest protects encrypts the password b...

Page 52: ...ved Remotes by MAC address of radios authorized to join this AP If a Remote is not in this list it will not be able to associate with this AP Save Changes Save all changes made during this session with this menu Changes will be implemented only if they are saved before exiting this menu 2 7 PERFORMANCE VERIFICATION After the basic operation of the radio has been checked you may wish to optimize th...

Page 53: ...chieved with stronger signal levels RSSI by Zone Received Signal Strength Indicator by Zone See RSSI by Zone Menu Remotes Only on Page 46 Event Log Access the menu for managing the unit s log of operational activities See Authorization Key Alter the unit s overall capabilities by enabling the built in resources See Authorization Keys Menu on Page 71 on Page 58 Packet Statistics Multiple radio and ...

Page 54: ... 49 and record the values Then set the questionable zone to Skipped in the Radio Configuration Menu Page 29 and look for an improvement in the Packet Statistics error rates If there is none return the Zone to Active RSSI measurements and Wireless Packet Statistics are based on mul tiple samples over a period of several seconds The average of these measurements will be displayed by the entraNET Man...

Page 55: ... the absence of the SNTP services the user must manually enter it at the Access Point See Device Information Menu on Page 25 for SNTP server identification The manually set time and date clock is dependent on the unit s primary power A loss of power will reset the clock to Jan uary 1 2002 but will not affect previously stored error events Figure 2 24 Event Log Menu Current Alarms Telnet Terminal o...

Page 56: ...FTP Host Address Telnet Terminal only IP address of the computer on which the TFTP server resides Any valid IP address 127 0 0 1 Filename Telnet Terminal only Name to be given to the Event Log file sent to the TFTP server for archiving Any 40 char alphanumeric string Blank NOTE You may want to change it to reflect the type of log you intend to archive and or its date TFTP Time out Telnet Terminal ...

Page 57: ...le Write Successful 2 28 Dec 2001 23 21 Scanning Started 3 29 Dec 2001 20 55 Received Beacon OK 4 29 Dec 2001 20 55 Hop Table Write Successful 5 29 Dec 2001 20 55 Expected Sync Established 6 29 Dec 2001 20 55 Hop Sync Established 7 29 Dec 2001 20 55 Association Established 8 29 Dec 2001 20 56 Association Lost 9 29 Dec 2001 20 56 Hop Table Write Successful 10 29 Dec 2001 20 56 Scanning Started 11 2...

Page 58: ...s a description of how this process takes place and as monitored on the Figure 2 28 Wireless Network Status Screen on page 51 The Association Process After the Remote is powered up and finishes its boot cycle it begins scanning the 900 MHz band for beacon signals being sent out from AP units If the Remote sees a beacon with a Network Name that is the same as its own the Remote will stop its scanni...

Page 59: ...ss Point Associated This unit has successfully synchronized and associated with an Access Point This is the normal status Alarmed The unit is has detected one or more alarms that have not been cleared Current AP Wireless address of Access Point with which the Remote is associated Association Date Date of last successful association with an Access Point Association Time Time of day association was ...

Page 60: ...tains a table with the addresses of the devices it communicates with The age time countdown is restarted to 5 min utes every time a message to from that device is detected If no traf fic with that device happens it then ages out of the table When traffic is detected it is included again in the table This optimizes memory space utilization SuppRates Supported data rate by this unit Library Admin Of...

Page 61: ...kets received by the transceiver and passed on to the endpoint device TxPkt Number of packets received from the endpoint device and passed over the air Library Admin Office Endpoint Listing Menu MAC Address IP Address AgeTime via Remote RxPkts TxPkt 00 b0 24 b9 e9 94 10 3 145 49 3 min 00 05 3d 00 00 35 22 3 00 b0 24 4d db 15 10 3 128 124 3 min 00 05 3d 00 00 35 50 0 00 c0 4f 41 e3 8b 10 3 145 84 1...

Page 62: ... received by the transceiver through the Ethernet port TxViaEP Packets sent by the transceiver through the Ether net port RetryEr Packets discarded after exceeding five retries over the air 2 7 2 Network Performance Notes Principles of Network Operation The following is a list of points that could be of value in dealing with the networking aspects of the transceiver 1 The transceiver serves as a n...

Page 63: ...P sends out Bridge Protocol Data Units BPDU s at regular intervals so that the spanning tree can be built and maintained BPDU s are 60 byte multicast Ethernet frames 2 The wireless MAC has two settings that can be adjusted Fragmentation threshold is the threshold in bytes which causes the MAC to fragment a packet RTS threshold is the threshold in bytes that causes the MAC to use RTS CTS before sen...

Page 64: ...ice complex there may be undesired multicast broadcast traffic over the air 4 Station to Station Traffic When sending frames from an endpoint connected to one trans ceiver to another endpoint with a different transceiver the throughput will be halved at best This is because all frames must go through the AP Therefore in the previous 100 byte UDP example the number of over the air bytes will be 380...

Page 65: ... by zone Remotes Only Main Menu Performance Information RSSI by Zone Readings should be close in value 2 dB A lower value might indicate interference Block the zones at the Access Point that affect the Remotes Main Menu Radio Configuration Skip Zone Option 7 Use Performance Information Menu to check for errors retries and dropped packets Do the same with Ethernet traffic With weak signals interfer...

Page 66: ...g unit operating parameters settings See Configuration Scripts Menu on Page 63 Authorization Key Alter the unit s overall capabilities by enabling the built in resources See Authorization Keys Menu on Page 71 Radio Test A diagnostic tool for testing RF operation See Radio Test Menu on Page 71 Ping Utility Diagnostic tool to test network connectivity See Ping Utility Menu on Page 73 Figure 2 32 Mai...

Page 67: ... of firmware file held in unit Image Copy Initiate the copying of the active firmware into the inactive image Reboot Device Initiate rebooting the transceiver This will interrupt data traffic through this unit and the network if performed on an Access Point Intended to be used to toggle between firmware images NOTE See Upgrading the Firmware on Page 59 for details on setting up the TFTP server Upg...

Page 68: ...Web site at www microwavedata com service technical support Installing Transceiver Firmware by TFTP To install firmware by TFTP the user will need A PC with a TFTP server running The IP address of the PC running the TFTP server If you do not know your computer s address on a Windows PC you can use the RUN function from the Start menu and enter winipcfg or ipconfig to determine your local PC s IP a...

Page 69: ...tion to the transceiver loading firm ware configuration files into the unit s flash RAM is much slower than loading software onto a PC hard drive or RAM Upload Procedure To upload a new firmware file filename ipk into the transceiver use the following procedure LA N CO M1 CO M2 PW R LINK LAN PORT LOCAL WINDOWS PC WITH iNET FILES IP ADDRESS 172 0 0 A IP ADDRESS 172 0 0 B TFTP SERVER TELNET MDS iNET...

Page 70: ...ing Menu 4 Fill in the information for the TFTP Host Address IP Address of server host com puter running TFTP server Retrieve File Name of file filename ipk to be pulled from the TFTP server holding the firmware file 5 Pull the firmware file through the TFTP server into the entraNET unit Main Menu Maintenance Menu Reprogramming Menu Retrieve File Status messages on the transfer are posted on the e...

Page 71: ... server will wait for a packet ACK acknowledgment from the transceiver before suspending the file transfer 10 to 120 seconds 10 Retrieve File Initiate the file transfer of the configura tion file from TFTP server into the transceiver Send File Initiate the file transfer from the transceiver s current configuration file to TFTP server NOTE See Upgrading the Firmware on Page 59 for details on settin...

Page 72: ...can be uploaded into the transceiver to speed up the installation process Configuration Files can also be uploaded into a transceiver to restore the settings of a unit using a previously saved configuration of the unit This is particularly convenient after finishing a test using some experimental settings Sample of an Exported Configuration File The following is a sample of a typical configuration...

Page 73: ... address of the device This value is set by the factory and cannot be changed Model Number 900 The model number of this unit This value is set by the factory and cannot be changed Serial Number 1026295 The serial number of this unit This value is set by the factory and cannot be changed Unit Name Library Admin Office A name for this unit It appears at the top of every menu screen Owner Hilltop Col...

Page 74: ...ration 8402 Network Name West Campus Net The name of the network this unit belongs to The unit will only communicate with devices having identical Network Names Date Format Generic Specifies the format of the date Generic dd Mmm yyyy European dd mm yyyy US mm dd yyyy Console Baud 19200 The baud rate of the serial menu console Default value is 19200 bps Company Name MDS Version Name 06 1234567 Prod...

Page 75: ...f 3_0_0 ipk Eventlog TFTP Host IP 192 168 1 3 Address of TFTP Host to which to send the event log Eventlog TFTP Filename Config Script TFTP Host IP 192 168 1 33 Address of TFTP Host to which to send the event log Config Script TFTP Filename entraNET_config txt Fragmentation Threshold 1600 Maximum packet size allowed before fragmentation occurs RTS Threshold 500 Number of bytes for the RTS CTS hand...

Page 76: ...m1 Serial Data Mode UDP IP Protocol for COM1 data mode Com1 Serial Data Baud Rate 9600 Baud rate for COM1 data mode Com1 Serial Data Tx IP Address 0 0 0 0 COM1 data will be sent to this IP address Com1 Serial Data Tx IP Port 0 COM1 data will be sent to this IP port Com1 Serial Data Rx IP Port 0 COM1 data will be received on this IP port Com2 Serial Data Enable enabled Com2 Serial Data Mode UDP Com...

Page 77: ...SA CANADA Read Only The frequency hopping rules the radio is configured to operate under SNMP Enable disabled Enable Disable SNMP Agent Hop Protocol 1 Frequency hopping protocol version DHCP Server Enable disabled Enable Disable DHCP Server Daemon DHCP Netmask 255 255 255 0 The IP Address to be used as the DHCP Netmask DHCP Start Address 192 168 0 11 The IP Address to be used as the starting addre...

Page 78: ...ied using a text editor or an automated process Not pro vide by MDS We recommend that you review and update the following parameters for each individual unit Other parameters may also be changed Table 2 6 Common User Alterable Parameters Field Comment Range IP Address Unique for each individual radio Any legal IP address IP Gateway May change for different groups or locations Any legal IP address ...

Page 79: ...omized files 2 8 3 Authorization Keys Menu Figure 2 37 Authorization Key Menu Authorization Key Initiate the entering of an Authori zation Key into the transceiver s non volatile memory Authorized Features List of authorized features In addition to the four transceiver configurations fields is the MDS NETview MS access control NETview MS is designed to help users monitor system performance configu...

Page 80: ...ransceiver s suite of tools ON OFF OFF Frequency Set radio operating frequency during the testing period to a single frequency 915 0000 MHz TX Output Power Temporarily overrides the power level setting in the Radio Configuration Menu 20 TxKey Manually key the radio transmitter for power mea surements Enable Disable Disable RSSI Incoming received signal strength on frequency entered in the frequenc...

Page 81: ...G packets to be sent Packet Size Size of each PING data packet bytes Go Send PING packets to address shown on screen Screen will be replaced with detailed report of PING activity Press any key after viewing the results to return to this menu Library Admin Office Ping Utility Menu A IP Addr 192 168 1 1 B Count 4 C Packet Size 32 D Go Select a letter to configure an item ESC for the prev menu ...

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Page 83: ...83 3 2 STEP 1 INSTALL THE ANTENNA CABLING 83 3 3 STEP 2 MEASURE CONNECT THE PRIMARY POWER 84 3 4 STEP 3 CONNECT PC TO THE TRANSCEIVER 84 3 5 STEP 4 REVIEW THE TRANSCEIVER S CONFIGURATION 85 3 5 1 Getting Started 85 3 5 2 Procedure 85 3 5 3 Basic Conﬁguration Defaults 85 3 6 STEP 5 CONNECT LAN AND OR SERIAL EQUIPMENT 86 3 7 STEP 6 CHECK FOR NORMAL OPERATION 87 ...

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Page 85: ... ANTENNA CABLING Figure 3 1 is a drawing of the tabletop arrangement Connect the antenna ports of each transceiver as shown This will provide stable radio communications between each unit while preventing interference to nearby electronic equipment from a large number of co located units Invisible place holder Figure 3 1 Typical setup for tabletop testing of radios NOTE It is very important to use...

Page 86: ... 2 with the positive lead on the left NOTE It will take about 30 seconds for the transceiver to power up and be ready for operation Invisible place holder Figure 3 2 Power Connector Polarity Left Right The transceiver must be used only with nega tive ground systems Make sure the polarity of the power source is correct The unit is protected from reverse polarity by an internal diode and fuse 3 4 ST...

Page 87: ...he configuration procedure that must be done on each unit in the system Key parameters are highlighted on the embedded Management System flowchart on Figure 3 4 on Page 83 Management System Menu Flowchart abbreviated A lists of parame ters can found in two tables Table 4 5 on Page 92 and Table 4 7 on Page 95 Detailed information on using the Management System can be found in INTRODUCTION on Page 1...

Page 88: ...IP Address Main Menu Network Configuration IP Address 192 168 1 1 Contact your network administrator Subnet Mask Net Address RF Output Power Main Menu Radio Configuration RF Power Output 30 dBm 1 0 Watt 20 30 dBm 50Ω 0 1 1 0 Watts Unit Password Main Menu Device Information User Password admin lower case 1 8 alphanumeric characters Case sensitive can be mixed case Table 3 2 Basic Configuration Defa...

Page 89: ...access to the entraNET Management System Figure 3 3 shows the default functions and services for the interface connectors Invisible place holder Figure 3 3 Transceiver AP Interface Default Configuration Functions Subnet Mask Net Address RF Output Power Main Menu Radio Configuration RF Power Output 30 dBm 1 0 Watt 20 30 dBm 50Ω 0 1 1 0 Watts Unit Password Main Menu Device Information User Password ...

Page 90: ...o network seems to be operating properly based on observa tion of the unit s LEDs you can use the PING command to verify the link integrity with the Access Point or pointing your browser to another Remote unit s IP address in the same network Invisible place holder Table 3 3 Transceiver LED Functions LED Label Activity Indication LAN ON LAN detected Blinking Data TX RX OFF LAN not detected COM1 MG...

Page 91: ...ion Phrase HTTP Access HTTP Security Mode Auto Key Rotation AP Force Key SNMP Access User Password Telnet Access Reprogramming Configuration Scripts Authorization Key Serial Config Wizard COM1 COM2 Serial Data Port Status Mode Data Baud Rate Flow Control Send to Address Sent to Port Receive on Port Receive on Address Seamless Mode Delimiter Buffer Size Serial Data Statistics STARTING INFORMATION S...

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Page 93: ... 4 1 1 Interpreting the Front Panel LEDs 93 4 1 2 Troubleshooting Using the Embedded Management System 94 4 1 3 Using Logged Operation Events 98 4 1 4 Alarm Conditions 98 4 1 5 Correcting Alarm Conditions 99 4 1 6 Logged Non Critical Events 100 4 2 RADIO MEASUREMENTS 102 4 2 1 Antenna System SWR and Transmitter Power Output 102 4 2 2 Antenna Direction Optimization 103 ...

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Page 95: ...ment System Do not overlook the possibility that human error may be the cause of the problem With so many possible things to look at and change a parameter may be incorrectly set and then what was changed is forgotten To help you avoid these problems we recommend creating an archive of the transceiver s profile when your installation is complete in a Con figuration File This file can be reloaded i...

Page 96: ...th an Access Point with the same Network Name Check the Status of the unit s process of associating with the Access Point Use the entraNET Management System c Poor Antenna System Check the antenna feedline and connectors Reflected power should be less than 10 of the forward power reading SWR 2 1 or lower PWR LED is blinking a Blinking indicates an alarm condition exists b View Current Alarms and E...

Page 97: ...ER c Change the terminal s baud rate to match the transceiver s Console Baud Rate d Type ENTER Display on terminal Telnet screen garbled a Verify the terminal terminal emulator or Telnet application is set to VT100 Cannot pass IP data to WAN a Verify your IP settings b Use the PING command to test communication with transceivers in the local radio system c If successful with local PING attempt to ...

Page 98: ...m with the wireless network layer Call in a radio technician to deal with wireless issues Refer the technician to the RADIO MEASUREMENTS on Page 96 for information on antenna system checks Packet Statistics Menu See Packet Statistics Menu on Page 49 This screen provides detailed information on data exchanges between the unit being viewed and the network through the wireless and the Ethernet data l...

Page 99: ...echnician to the RADIO MEASUREMENTS on Page 96 for information on antenna system checks NOTE For a data rate of 115 2 kbps the average signal level should be 77 dBm or stronger Serial Port Statistics Menu See Serial Data Statistics Menu on Page 36 This screen provides top level information on data exchanges between the unit s serial ports and the network through the wireless and the Ethernet data ...

Page 100: ...security 4 1 4 Alarm Conditions See View Current Alarms on Page 48 Most events classified as critical will make the POWER LED blink and will inhibit normal operation of the transceiver The LED will remain blinking until the corrective action has been completed Table 4 4 Event Classifications Level Description Impact Storage Informational Normal operating activities Flash Memory Minor Does not affe...

Page 101: ...ERROR System Error Cleared Please Reboot systemError 16 Table 4 5 Alarm Conditions Alphabetical Order Continued Alarm Condition Reported Event Log Entry SNMP Trap Table 4 6 Correcting Alarm Conditions Alphabetical Order Event Log Entry Generating Condition Clearing Condition or Action ADC Failure The ADC always reads the same value either high or low limit Contact MDS Technical Services for assist...

Page 102: ...ace Contact MDS Technical Services for assistance Network Name Not Programmed Network name is Not Programmed Change Network Name to something other than Not Programmed PLL Out of Lock The FPGA reports a synthesizer out of lock condition when monitored by the CPU Contact MDS Technical Services for assistance Power Control Railed High Power control can no longer compensate and reaches the high rail ...

Page 103: ...elow threshold Above threshold INFORM ber 42 Console Access Locked for 5 Min MAJOR consoleLockdown 63 Console User Logged Out Logged In MAJOR consoleLogin 62 Country SkipZone Mismatch INFORM countrySkipZoneMismatch 50 Current AP is No Longer Approved MAJOR apNotApproved 57 Desired AP IP Addr Mismatch INFORM desiredAPIPMismatch 51 Expected Sync Lost Established INFORM expectedSync 38 Hop Sync Lost ...

Page 104: ...directly by measuring the SWR standing wave ratio of the antenna system If the results are normal record them for comparison for use during future routine preventative maintenance Abnormal readings indicate a pos sible trouble with the antenna or the transmission line that will need to be corrected The SWR of the antenna system should be checked before the radio is put into regular service For acc...

Page 105: ...nsceiver to normal operation The Radio Test Mode can be terminated manually 3 Set the transmitter power to 30 dBm Main Menu Maintenance Menu Radio Test Test Mode Tx Power Output NOTE The Radio Test Mode RF power setting will not affect the output level during normal operation 4 Key the transceiver Main Menu Maintenance Menu Radio Test Test Mode TxKey Enable User the spacebar to key and unkey the t...

Page 106: ... measurement and antenna alignment process will usually take 10 or more minutes at each transceiver The path to the Management System menu item is shown in bold text below each step of the procedure Procedure 1 Verify the Remote is associated with an Access Point unit Observe the condition of the LINK LED LINK LED On or Blinking This will indicate that you have an adequate signal level for the mea...

Page 107: ...m RSSI level They should be the same or lower than the previous reading Main Menu Performance Information Packet Statistics Wireless Packet Statistics If the RSSI peak results in an increase in the Wireless Packets Dropped and Received Error the antenna may be aimed at an undes ired signal source Try a different antenna orientation End of procedure ...

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Page 109: ...et Paragraph Contents 5 1 INTRODUCTION 109 5 1 1 General Requirements 109 5 1 2 Site Selection 111 5 1 3 Terrain and Signal Strength 111 5 1 4 Antenna Feedline Selection 112 5 1 5 Conducting a Site Survey 114 5 1 6 A Word About Radio Interference 114 5 1 7 How Much Output Power Can be Used 116 5 2 dBm WATTS VOLTS CONVERSION CHART 118 ...

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Page 111: ...y installation Invisible place holder Figure 5 1 Typical Installation with a tower mounted antenna Connect user data equipment to any compatible LAN or COM Port Unit Dimensions Figure 5 2 shows the dimensions of the transceiver case and its mounting holes and Figure 5 3 on Page 105 the dimensions for mounting with MDS supplied brackets If possible choose a mounting location that provides easy acce...

Page 112: ...uide Preliminary MDS 05 4055A01 Rev A Figure 5 2 Transceiver Dimensions 4 25 10 8 cm 4 75 12 cm 1 25 3 17 cm 6 75 17 15 cm 4 5 11 4 cm TOP SIDE BOTTOM 2 5 6 35 cm 4 85 12 3 cm THREADED HOLES FOR MOUNTING SCREWS 4 Not to scale FRONT ...

Page 113: ...amiliar with the effects of terrain and other obstructions on radio transmission the discussion below will provide helpful background 5 1 3 Terrain and Signal Strength While the license free 900 MHz band offers many advantages for data transmission services signal propagation is affected by attenuation from obstructions such as terrain foliage or buildings in the transmission path A line of sight ...

Page 114: ...es equal coverage to all of the Remote Gateway sites NOTE Antenna polarization is important If the wrong polarization is used a signal reduction of 20 dB or more will result Most systems using a gain type omnidirectional antenna at the Access Point station employ vertical polarization of the signal therefore the remote antenna s must also be vertically polar ized elements oriented perpendicular to...

Page 115: ...cceptable Otherwise we recommend using a low loss cable type suited for 900 MHz such as Heliax Table 5 1 lists several types of popular feedlines and indicates the signal losses in dB that result when using various lengths of cable at 900 MHz The choice of cable will depend on the required length cost considerations and the amount of signal loss that can be tolerated Table 5 1 Length vs loss in co...

Page 116: ...he proposed mounting spot a technician can check for synchronization with the Access Point station shown by a lit LINK LED on the front panel and measure the reported RSSI value See Antenna Direction Optimization on Page 97 for details If adequate signal strength cannot be obtained it may be necessary to mount the station antennas higher use higher gain antennas select a different site or consider...

Page 117: ...eved by using horizontal polarization Another approach is to use a bandpass filter to attenuate all signals outside the 900 MHz band 4 Multiple Access Point units can co exist in proximity to each other with only very minor interference Each network name has a differ ent hop pattern See Protected Network Operation through Multi ple Access Points on Page 8 Additional isolation can be achieved by us...

Page 118: ...Calculating System Gain To determine the maximum allowable power setting of the radio per form the following steps 1 Determine the antenna system gain by subtracting the feedline loss in dB from the antenna gain in dBi For example if the antenna gain is 9 5 dBi and the feedline loss is 1 5 dB the antenna system gain would be 8 dB If the antenna system gain is 6 dB or less no power adjustment is re...

Page 119: ...ngth To determine the loss for common lengths of feedline see Table 5 1 on Page 107 For assistance in the conversion of dBm to Watts please see dBm WATTS VOLTS CONVERSION CHART on Page 112 Table 5 3 Antenna system gain vs power output setting USA Antenna System Gain Antenna Gain in dBi minus Feedline Loss in dB Maximum Power Setting in dBm EIRP in dBm 6 or less 30 36 8 28 36 10 26 36 12 24 36 14 2...

Page 120: ...W 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...

Page 121: ...Guide Preliminary 113 6 TECHNICAL REFERENCE 6 Chapter Counter Reset Paragraph Contents 6 1 DATA INTERFACE CONNECTORS 121 6 1 1 LAN Port 121 6 1 2 COM1 Port 122 6 1 3 COM2 Port 122 6 2 FUSE REPLACEMENT PROCEDURE 123 6 3 TECHNICAL SPECIFICATIONS 124 ...

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Page 123: ...ds available through the console interface HELP DUMP TOR RADIO LOGIN AUTH BOOT DATE COM1 CONSOLE PAYLOAD OEM REG POWER WAKE TREND ENCRYPT REPROG H2H VER DEVICE CONFIG CONFIGTAB IMAGE DUMP Lists the current value of all variables TOR Syntax TOR optional arguments as follows COMMAND command string to send to TOR PASS choices 0 COM2passthroughto fromTORLCPdataportDISABLED 1 COM1 passthrough to from T...

Page 124: ...integer Current state of Radio Sync CMD 0 1 dump command line format LOGIN Syntax LOGIN optional arguments as follows PASS Login securely prompt username password and echo when inputting password ADMIN string Administrator console login password DIST string Distributor console login password NONE string User Read only login FACT string ENG string AUTH Syntax AUTH optional arguments as follows CODE...

Page 125: ...RESET goto Reset Vector APP1 Application Image 1 APP2 Application Image 2 CMD 0 1 dump command line format DATE Syntax DATE optional arguments as follows DATE Current real time clock date FORM choices US US Date Format EUROPE Europe Date Format GENERIC Generic Date Format TIME string Current system time of day in military format CMD 0 1 dump command line format COM1 Syntax COM1 optional arguments ...

Page 126: ...uments as follows BAUD choices Data Rate of Console Port COM1 1200 1200 bps 2400 2400 bps 4800 4800 bps 9600 9600 bps 19200 19200 bps 38400 38400 bps 57600 57600 bps 115200 115200 bps CBITS choices Number of Bits that form one character byte 7 7 character bits 8 8 character bits 9 9 character bits PAR choices NONE no parity ODD odd parity EVEN even parity SBITS choices 1 1 stop bit 2 2 stop bits C...

Page 127: ...OM2 COM2 port BAUD choices 1200 1200 bps 2400 2400 bps 4800 4800 bps 9600 9600 bps 19200 19200 bps 38400 38400 bps 57600 57600 bps 115200 115200 bps 230400 230400 bps CBITS choices 7 7 character bits 8 8 character bits 9 9 character bits EN choices OFF Payload data disabled on port ON Payload data enabled on port PAR choices NONE no parity bit ODD Odd Parity ...

Page 128: ...tring Product Name given to the radio SREV string Software ID CMD 0 1 dump command line format REG Syntax REG optional arguments as follows REG 0 1 Whether the device remote has registered with a master CA integer Master assigned connection address mac address after registration MASTER integer serial number of registered master PROT integer agreed protocl version for H2H after registration w maste...

Page 129: ...pported on Network TIWAKE Traffic Indication w Wake on Data at Master TINOWAKE Traffic Indication w o Wake on Data at Master SLEEPIND integer Master assigned sleep TIM index after regis tration TYPE integer RegMasterType type of master accepting reg istration CMD 0 1 dump command line format POWER Syntax POWER optional arguments as follows CNTRL choices DTR DTR controls power mode PERM Power mode ...

Page 130: ...nable whether remote can wake on local data console or not MDATA 0 1 When in sleep mode this enable whether remote can wake on data at master CMD 0 1 dump command line format TREND Syntax TREND optional arguments as follows TREND Writing to this register invokes a request to return trending data at the next non intrusive opportunity CMD 0 1 dump command line format ENCRYPT Syntax ENCRYPT optional ...

Page 131: ...rogramming bytes to be downloaded H2H Syntax H2H optional arguments as follows PROT choices LCP_ONLY LCP no network or H2H layer H2H_ONLY H2H but no Network layer H2H_NETWORK Full H2H Network protocol CMD 0 1 dump command line format VER Syntax VER optional arguments as follows IMAGE integer Currently active image 1 or 2 SREV string Current Software Version number xx yy zz SWID string Current Soft...

Page 132: ...ce as well as DLINK remote diagnostic messages SNUM integer OIB Board Serial Number OWNER string Owner can program any information as 1 string UPTIME string Current system uptime XSNUM integer OEM Radio Board Serial Number CMD 0 1 dump command line format CONFIG Syntax CONFIG optional arguments as follows ELI string Product configurator string CMD 0 1 dump command line format CONFIGTAB Syntax CONF...

Page 133: ...ged index APP1 Application Image 1 APP2 Application Image 2 SREV string Software Version number xx yy zz Not sup ported SWID string Software ID text 06 nnnnAnn Not supported XSREV string Display TOR radio software version Not sup ported CMD 0 1 dump command line format Application Image 1 Application Image 2 ...

Page 134: ...t the radio to an Ethernet network The transceiver will provide a data link to an Internet Protocol based IP data network through the radio network s Access Point station Each transceiver in the network must have a unique IP address for the network to function properly To connect a PC directly to the radio s LAN port an RJ 45 to RJ 45 cross over cable is required To connect the radio to a Ethernet...

Page 135: ...Viewed from the outside of the unit 6 2 3 COM2 Port Figure 6 3 COM2 Port DTE Viewed from the outside of the radio Table 6 2 COM1 Port Pinout DB 9F RS 232 Interface Pin Functions DCE 1 Unused 2 Receive Data RXD Out 3 Transmit Data TXD In 4 Unused 5 Signal Ground GND 6 9 Unused Table 6 3 COM2 Port DB 9M EIA 232 Interface Pin Functions DTE 1 Data Carrier Detect DCD In 2 Receive Data RXD In 3 Transmit...

Page 136: ... kg 0 lb Remote Case Cast Aluminum Boot Time 30 sec Time Required to Associate with Access Point 20 sec APPROVALS HOMOLOGATION FCC Part 15 247 Pending Industry Canada RSS 210 and RSS 139 Pend ing UL CSA Class 1 Div 2 Groups A B C and D hazardous locations Pending Contact MDS for information on availability and governmental approvals in other countries EMBEDDED MANAGEMENT SYSTEM Access Point HTTP E...

Page 137: ...rnet ICMP UDP TCP ARP Clear channel mode for serial async multidrop protocols including Modbus DNP 3 Bisync BSAP DF1 TotalFlow Poll Select RADIO CHARACTERISTICS GENERAL Frequency Range 902 928 MHz ISM Band Frequency Hopping Range Ten user configurable 2 5 MHz wide zones each containing 8 frequencies Hop Pattern Based on network name Frequency Stability 20 ppm TRANSMITTER Power Output at antenna co...

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Page 139: ...MDS 05 4055A01 Rev A MDS entraNET 900 System Guide Preliminary 131 ...

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Page 141: ...em losses from the feedline and coaxial connectors for example are subtracted from this figure to calculate the total antenna system gain AP See Access Point Association Condition in which the frequency hopping pattern of the Remote is synchronized with the Access Point station in a network and is ready to pass traffic Authorization Key Alphanumeric string code that is used to enable additional ca...

Page 142: ...r a large number of users and devices When a network device powers on if it is configured to use DHCP it will con tact a DHCP server on the network and request an IP address The DHCP server will provide an address from a pool of addresses allocated by the network administrator The network device may use this address on a time lease basis or indefinitely depending on the policy set by the network a...

Page 143: ...ng a set pattern Since the pattern appears to jump around it is said to hop from one frequency to another Frequency Zone The transceiver uses up to 80 discrete channels in the 902 to 928 MHz spectrum A group of 8 channels is referred to as a zone in total there are 10 zones Hardware Flow Control An transceiver feature used to prevent data buffer overruns when handling high speed data from the conn...

Page 144: ...y secure data encoding scheme MD5 is a one way hash algorithm that takes any length of data and produces a 128 bit finger print This fingerprint is non reversible it is computationally infea sible to determine the file based on the fingerprint For more details check out RFC 1321 on the Internet Microcontroller Unit See MCU Mobile IP An emerging standard by which access points and stations maintain...

Page 145: ... therefore at least temporarily discon nects the station from the access point PING Packet INternet Groper Diagnostic message generally used to test reachability of a network device either over a wired or wireless net work Point Multipoint System A radio communications network or system designed with a central control station that exchanges data with a number of remote locations equipped with term...

Page 146: ...ndancy roaming allows the stations to switch between the access points to provide a robust network Roaming may also be employed in conjunction with Portability where the station has been moved beyond the range of the original access point to which it was con nected As the station comes in range of a new access point it will switch its connection to the stronger signal Roaming refers to a station s...

Page 147: ...ted to the ratio between forward transmitter power 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 TCP Transmission Control Protocol TFTP Trivial File Transfer Protocol UDP User Datagram Protocol Zone See Frequency Zone ...

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