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Summary of Contents for Microhard Systems IP920
- Page 1 Operating Manual IP920 Wireless Ethernet Bridge/Serial Gateway Revision 0.90 January 11, 2006 Microhard Systems Inc. #17, 2135 - 32 Ave. N.E. Calgary, Alberta T2E 6Z3 Phone: (403) 248-0028 Fax: (403) 248-2762 www.microhardcorp.com...
- Page 2 Warranty Microhard Systems Inc. warrants that each product will be free of defects in material and workmanship for a period of one (1) year for its products. The warranty commences on the date the product is shipped by Microhard Systems Inc. Microhard Systems Inc.’s sole liability and responsibility under this warranty is to repair or replace any product which is returned to it by the Buyer...
- Page 3 WARNING This device can only be used with Antennas listed in Appendix E. Please Contact Microhard Systems Inc. if you need more information or would like to order an antenna.
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Page 5: Table Of Contents
................................39 YSTEM OOLS 4.8.1 Firmware Upgrade ....................................39 Package Upgrade from webUI............................39 Package Upgrade from Command Line FTP ........................40 Recovery from Command Line FTP..........................41 Parameter Change through Command Line FTP ....................... 42 IP920 Operating Manual: Contents... - Page 6 VERVIEW ............................. 45 STIMATING THE ARGIN ..............47 NSTALLING XTERNAL ABLES NTENNAS AND IGHTNING RRESTORS SERIAL INTERFACE..........................51 RS485 WIRING .............................53 2-wire RS-485........................................53 4-wire RS-485........................................53 MOUNTING DIMENSIONS........................55 TECHNICAL SPECIFICATIONS ......................57 APPROVED ANTENNAS ..........................59 GLOSSARY ..............................61 IP920 Operating Manual: Contents...
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Page 7: History
Change Parameter via FTP • FTP Firmware Upgrade • MAC Binding described • WEP Security described • SNMP described • Channel Mode added on COM1 • “+++” described 0.50 2005-08-04 Modified V0.8.3 0.10 2005-06-10 Created V0.5.0 IP920 Operating Manual: History... - Page 9 Figure 18 System Information .............................38 Figure 19 System Tools...............................39 Figure 20 Command Line Package Upgrade .......................40 Figure 21 Command Line Recovery..........................41 Figure 22 Command Line Parameter Loading......................42 Figure 23 Gain Calculation............................45 Figure 24 System Deployment ............................46 IP920 Operating Manual: Tables and Figures...
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Page 11: Introduction
The IP920 is a high-performance wireless ethernet bridge and serial device gateway. When used properly very long distance communication at very high speeds can be accomplished. The IP920 operates in the 902 - 928 MHz ISM band, and uses frequency-hopping spread-spectrum technology to provide reliable wireless ethernet bridge functionality to extend LAN network to remote locations;... -
Page 12: Features
1.1 Features Key features of the IP920 include: Transmission within a public, license-exempt band of the radio spectrum – this means that it can be used without access fees (such as those incurred by cellular airtime); Transparent, low latency link providing reliable wireless... -
Page 13: About This Manual
IP920 module. It is assumed that users of the IP920 module have either system integration or system design experience. Throughout the manual, you will encounter not only illustrations that further... -
Page 14: Electrical/Physical
2. Electrical/Physical 2.0 Connectors The IP920 connects to the host equipment through a standard DB9 serial port or RS485/422 interface. All connectors and indicators are illustrated in Figure 1 Microhard Systems Inc. COM2 RSSI Front Panel ETHERNET COM1 RS485/422 b. Back Panel... -
Page 15: Table 1 Rs-232 Pin Assignment
COM1 –– RS-232 Port (DCE). This port is used to interface the IP920 to a DTE device and operates at 300 to 230,400 bps. The levels are active high RS- 232 levels, and include (See Appendix A for a complete description): Table 1 RS-232 Pin Assignment Pin No. -
Page 16: Table 4 Diagnostic Port Pin Assignment
Ethernet port is a standard RJ-45 port. A straight through CAT- 5 cable should be used when connecting to a Ethernet hub, on the other hand, a crossover CAT-5 cable should be used when IP920 is connected to a DTE device, a computer for example. -
Page 17: Indicators
See Section 2.2 for complete LED details. CFG Button – Holding this button while powering on will boot the unit into flash file system recovery mode. Default IP address recovery is assigned to a static IP address: 192.168.1.39 IP920 Operating Manual: Chapter 2 Electrical/Physical... -
Page 18: Led Operation
2.2 LED OPERATION LED functionality is dependent on the mode of operation. Table 6 explains LED operation for the various modes. Table 6 LED Operation MODE RX/Sync TXMode RSSI1,2,3 Power Up Configuration Mode Master ON while receiving RSSI mode valid data packets based on all from remotes and received packets... -
Page 19: Vswr Alarm
Excellent 2.3 VSWR Alarm The IP920 provides the user a very special indicator on the diagnostic port, the VSWR alarm. This yellow LED will be illumined if there is a significant impedance mismatch between the transmission line and its load, i.e. bad antenna system or bad connections. - Page 20 920 Operating Manual: Chapter 2 Electrical/Physical...
- Page 21 IP920 Operating Manual: Chapter 2 Electrical/Physical...
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Page 22: User Interfaces
3. User Interfaces 3.0 Overview The IP920 modem can be easily configured to meet a wide range of needs and applications. There are three approaches which can be used to access and configure an IP920. 1. Serial console. COM2 is assigned to system console by default. -
Page 23: Figure 2 Textui Screen Shot
“Q” is used to quit from textUI. When a parameter is modified in a submenu, “U” is used to apply change(s) and “V” to give up changes just made. IP920 Operating Manual: Chapter 3 User Interfaces... -
Page 24: Web Based User Interface
To make life easier, webUI will be used in following sections instead of a web based user interface. Once an IP address is assigned to an IP920 unit, dynamically or statically, webUI can be accessed using any web browser, such as IE, Netscape and Mozilla, etc. -
Page 25: Network Management
3.4 Network Management IP920 has a built-in SNMP agent to facilitate Simple Network Management Protocol V1, V2 and V3. All objects specific to IP920 are hosted under and the private enterprise number: 21703 IP920 Operating Manual: Chapter 3 User Interfaces... -
Page 26: Configuration
4.2 System Configuration System configuration gives the ability to setup system time statically or allow IP920 to synchronize time with a NTP server. There is no backup battery to support system clock. The system clock starts from default time upon system reboot, including power on reboot or software reboot. Re- configuration is needed upon reboot if correct system clock is desired. - Page 27 A “+” indicates local time is ahead of UTC time and a “-” indicates local time is behind UTC time. Before clicking on Synchronizes with SNTP Server, SNTP server should have already been set to proper internet time server or network timer server. See 4.3.2 for details. IP920 Operating Manual: Chapter 4 Configuration...
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Page 28: Network Configuration
4.3.1 Local IP Config … This is the place where the local network character is determined. The local network configuration address is a basic for this IP920 node to communicate with any other network devices through a LAN Ethernet port as well as remotely through a radio link. -
Page 29: Ntp Server Config
IP Gateway: Editable when IP Address Mode is set to “static”. Only a valid static gateway address is acceptable. 4.3.2 NTP Server Config ... This is where to setup the NTP server for the local IP920 to synchronize its clock with. Figure 8 NTP Server Config NTP Server Status: NTP service can be enabled or disabled. -
Page 30: Dhcp Server Config
DHCP server on a master IP920 so that it can assign dynamic IP addresses to all the remotes wirelessly. It can also assign a dynamic IP address to a host machine which is connected through a LAN port. This machine can be used as a maintenance station for the whole radio network. -
Page 31: Bridge Config
Figure 10 NTP Server Config If multiple IP920 will be directly connected to a network, STP should be enabled. STP should be disabled if only the master IP920 is connected to a network and the other units are connected to the network indirectly. -
Page 32: Snmp Agent Config
SNMPv3 user can read and write (set) variables. V3 User Authentication Level: Defines SNMPv3 user's authentication level. Choose from, noAuthNoPriv: don’t need authentication and encryption. AuthNoPriv: need authentication but don’t need encryption. AuthPriv: need authentication but don’t need encryption. IP920 Operating Manual: Chapter 4 Configuration... - Page 33 Auth Failure Traps: If select "Enable", an authentication failure trap will be generated upon authentication failure. Trap Community Name: The community name can receive traps. Trap Manage Host IP: Defines a host IP address where traps will be sent IP920 Operating Manual: Chapter 4 Configuration...
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Page 34: Radio Configuration
The Repeater(s) store any data from the Master or upper stream repeater and forward to the down stream Repeater or remote, vice versa IP920 Operating Manual: Chapter 4 Configuration... - Page 35 RF Output Power: The Output Power Level determines at what power the IP920 transmits. The IP920’s sensitive receiver can operate with very low power levels, so it is recommended that the lowest power necessary is used; using excessive power contributes to unnecessary “RF pollution”.
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Page 36: Table 9 Output Power
36 - 30 = 6 dBi. If an antenna with a gain higher than 6 dBi were to be used, the power setting must be adjusted appropriately. Microhard Systems Inc. limits the MHX 920’s transmitted power to 100mW for all units purchased with antennas with gain above 6dBi. - Page 37 When throughput is the priority in an application, High throughput should be chosen; when a system has short packets and latency requirement is the priority, Low Latency should be selected; otherwise, the selection of Balanced is a compromise of throughput and latency. IP920 Operating Manual: Chapter 4 Configuration...
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Page 38: Com1 And Com2 Configuration
Normally, serial device server is used to bring serial device data into a LAN network through TCP, UDP or multicast. When configured properly, data from a serial port on one IP920 could output to the serial port on another IP920. -
Page 39: Serial Port Settings
Baud rate can be set from 300bps to 230,400 bps. Data Format: defines serial port framing format, including data bits, parity, and stop bits. For example, 8N1 means 8 data bits, No parity, and 1 stop bit. IP920 Operating Manual: Chapter 4 Configuration... -
Page 40: Figure 14 Cts Output Data Framing
If a serial device doesn’t support hardware handshaking, flow control should be set to “None”. When CTS Framing is selected, IP920 uses CTS signal to gate output data on serial port. The following figure shows timing diagram of CTS output data framing. -
Page 41: Serial Port Protocols
⌦ UDP Point to Multipoint (MP) TCP Client When TCP Client protocol is selected, IP920 takes initiative to find and connect to a remote TCP server when data is received from its serial port. The TCP connection is terminated by this unit when the data session is done and connection timeout has expired. -
Page 42: Tcp Server
TCP Server When TCP Server protocol is selected, IP920 is put into a passive mode. It listens on a specific TCP port to accept an incoming TCP connection from a remote station, for example a work station inside a LAN network. Once a connection is established any received data from serial port is passed on to the remote TCP client;... -
Page 43: Tcp Client/Server
Normally, this protocol is set on remote units. Remote IP Address: a remote IP address to which UDP packets are sent by this IP920 when data is received from serial port. Normally this is set to the IP address of the Master unit. -
Page 44: Udp Multipoint To Multipoint
Multipoint. 224.1.1.1 Multicast address is a good example. Listening Multicast Port: A UDP port that this unit used to listen to multicast UDP packets sent by UDP Multipoint to Multipoint. Time to Live: TTL for multicast packets. IP920 Operating Manual: Chapter 4 Configuration... -
Page 45: Security Configuration
4.6 Security Configuration This section describes security measures built into IP920. These security measures cover from wireless data traffic security to device management security. 4.6.1 Administrator Password To keep a system secure, the administrator password should be modified to a different password instead of using the factory default password. This menu gives the ability to change the password for the administrator. -
Page 46: Upgrade Password
4.6.2 Upgrade Password Upgrade password protects IP920 units from being upgraded (package upgrade) by unauthorized personel. Default password should be avoided when system is deployed to make the units more secure. Figure 16 Change Password for Upgrade 4.6.3 Wireless WEP Encryption Network traffic over air can be encrypted by Wired Equivalent Privacy (WEP) encryption algorithm. -
Page 47: Figure 17 Wep Encryption
Key1~Key4: Up to 4 different WEP Key can be setup on each unit. Generate Key: An action to generate a WEP key temporarily on the UI. All the parameters take effective only when the page is submitted. IP920 Operating Manual: Chapter 4 Configuration... -
Page 48: System Information
⌦ Radio Information ... ⌦ COM1 Connection Status ... ⌦ COM2 Connection Status ... ⌦ Other information All this information can help an administrator to setup a network or with troubleshooting. Figure 18 System Information IP920 Operating Manual: Chapter 4 Configuration... -
Page 49: System Tools
If an upgrade procedure is started from this page, only the password may be needed. This page will be routed to a FTP page so that upgrade package can be dragged and dropped into IP920 to upgrade the unit. FTP session also works remotely, meaning that a remote unit can be upgraded remotely. -
Page 50: Package Upgrade From Command Line Ftp
Package Upgrade from Command Line FTP This section describes the procedure to upgrade an IP920 unit with package upgrade file (*.pkg). Download upgrade package and put it into a known directory; Start up a command line window from the system;... -
Page 51: Recovery From Command Line Ftp
Start up a command line window from the system; Change current directory to where the package file is located; Cycle power on the IP920 unit with CFG button pressed and held down until “SYS” LED is observed in fast flash mode;... -
Page 52: Parameter Change Through Command Line Ftp
Download “system.conf”; Make necessary changes in “system.conf”. Comments can be found inside the file. Push “system.conf” file into the system with “put” command; The system applies new parameters and reboots itself. IP920 Operating Manual: Chapter 4 Configuration... -
Page 53: Reset Radio To Defaults
4.8.3 Reboot System This command is used to reboot system without physically power cycle the IP920 unit locally or remotely. 4.8.4 Reset System to Default This command is used to reset all settings to factory defaults. IP920 Operating Manual: Chapter 4 Configuration... - Page 54 IP920 Operating Manual: Chapter 4 Configuration...
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Page 55: Installation
The IP920 complies with FCC part 15 at the modular level for operation in personnel. the license-free 902-928 MHz ISM band. This chapter provides guidelines for installing and deploying equipment which incorporates the IP920 module. -
Page 56: Table 10 Path Loss
Command Mode and reading Register S123. This register provides the average signal strength in dBm. The minimum strength for communication roughly -106dBm. consistent reliable communication, you should try to deploy the equipment such that signal strength exceeds -88dBm. IP920 Operating Manual: Chapter 5 Installation... -
Page 57: Installing External Cables, Antennas And Lightning Arrestors
Direct human contact with the antenna is potentially unhealthy when the separation distance of 23 cm IP920 is generating RF energy. Always ensure that the IP920 equipment is more should powered down during installation. At all times, a distance of 23 cm must be... - Page 58 If the tower is non- conductive, then a separate conductor, physically separate from the cable, should be run down the tower. IP920 Operating Manual: Chapter 5 Installation...
- Page 59 See appendix A for a list of approved antennas that can be used with the IP920 radio modem. If you require another type of antenna please contact Microhard Systems Inc. The IP920 CANNOT be used with any To comply with FCC regulations, antenna that does not appear in Appendix A.
- Page 60 IP920 Operating Manual: Chapter 5 Installation...
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Page 61: Serial Interface
A. Serial Interface The IP920 module uses 8 pins on the header connector for asynchronous serial I/O. The interface conforms to standard RS-232 signals without level shifting, so direct connection to a host microprocessor is possible. The signals in the asynchronous serial interface are described below:... - Page 62 IP920 Operating Manual: Appendix A Serial Interface...
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Page 63: Rs485 Wiring
4-wire RS-485 A IP920 RS-485 can also be connected into a RS-485 network in a four-wire fashion as shown in Figure 26. In a four-wire network it is necessary that one node be a master node and all others be remotes. The network is connected so that the master node communicates to all remote nodes. - Page 64 IP920 Operating Manual: Appendix B RS485 Wiring...
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Page 65: Mounting Dimensions
C. Mounting Dimensions 4.2500 3.7500 IP920 3.885 4.760 TOP VIEW 4 HOLES 0.1250 0.375" I/D FRONT IP920 Operating Manual: Appendix C Mounting Dimensions... - Page 66 IP920 Operating Manual: Appendix C Mounting Dimensions.
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Page 67: Technical Specifications
Enclosure: 4.600” x 3.75” x 1.75” (112 mm x 95 mm x 45 mm) Dimensions (L x W x H) Weight 420 grams (0.93lbs) Operating Environment Temperature: -40 to +85°C Humidity: 5 to 95%, non-condensing Storage Temperature -50 to 125°C 1. Clear line-of-sight, elevated high-gain antennas. IP920 Operating Manual: Appendix D Technical Specifications... - Page 68 IP920 Operating Manual: Appendix D Technical Specifications...
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Page 69: Approved Antennas
6dBd, 900 MHz Omni Directional Antenna Bluewave, RPTNC Pigtail WARNING Changes or modifications not expressly approved by Microhard Systems Inc. could void the user’s authority to operate the equipment. This device has been tested with MCX and Reverse Polarity SMA connectors with the antennas listed in Appendix A When integrated in OEM products, fixed antennas require installation preventing end-users from replacing them with non-approved antennas. - Page 70 IP920 Operating Manual: Appendix E Approved Antennas...
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Page 71: Glossary
F. Glossary Terminology Used in the IP920 Operating Manual Asynchronous communications performed and checked against the transmitted A method of checksum. telecommunications in which units of single bytes of data are sent separately and at an arbitrary time Crossover cable (Also known as rollover, null- (not periodically or referenced to a clock). - Page 72 9-pin hopping. Spread spectrum provides the possibility connector with only the essential signaling lines of sharing the same band amongst many users used in asynchronous serial communications. IP920 Operating Manual: Appendix F Glossary...
- Page 73 (Voltage Standing Wave Ratio) is a measure of impedance mismatch between the transmission line and its load. The higher the VSWR, the greater the mismatch. The minimum VSWR, i.e., that which corresponds to a perfect impedance match, is unity. IP920 Operating Manual: Appendix F Glossary...
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