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 Chapter Three 

Operation 

 

Page 

9 

©

 February 2005

 

 

 

 

 

Chapter Three            OPERATION 

3.1 

Power-up and Normal Operation 

When  power  is  initially  connected  to  the  905U-E  module,  the  module  will  perform  internal 

diagnostics to check its functions. The following table details the status of the indicating LEDs 

on the front panel under 

normal operating conditions. 

 

LED Indicator 

Condition 

Meaning 

OK  

On 

Normal Operation 

Radio RX 

 GREEN flash 

RED flash 

Radio receiving data 

Weak radio signal 

Radio TX 

Flash 

Radio Transmitting 

Serial RX 

GREEN flash  

RED flash 

Serial Port Receiving  

CTS low 

Serial TX 

GREEN flash 

Serial Port Transmitting 

LINK 

On 

On when a radio communications link is 

established 

LINK 

Off 

Communications failure or radio link 

not established 

 
Other conditions indicating a fault are described in Chapter Six 

Troubleshooting. 

3.2 

Ethernet Data 

 
 
 

3.2 

Serial Data 

The 905U-E module provides a full-duplex RS232 serial port and half-duplex RS485 serial port.    

The radio communications is half-duplex  - this means that the 905U-E operates at half duplex.  

Many applications use full duplex RS232 communications but do not require full duplex  -  the 

Содержание 905U-E

Страница 1: ...LPRO Technologies Pty Ltd 9 12 Billabong Street Stafford Q 4053 Australia Tel 61 7 33524533 Fax 61 7 33524577 Email sales elprotech com Web www elprotech com User Manual 905U E Wireless Ethernet Bridg...

Страница 2: ...internal module fuse only with the same type and rating CAUTION To comply with FCC RF Exposure requirements in section 1 1310 of the FCC Rules antennas used with this device must be installed to prov...

Страница 3: ...tions ELPRO Antenna Part Antenna Gain No Cable CC10 900 CC20 900 WH900 2dBi OK N A N A DG900 2dBi OK N A N A CFD890EL 0dBi OK N A N A SG900EL 5dBi N A OK OK SG900 6 8dBi N A OK OK YU6 900 10dBi N A NO...

Страница 4: ...ot indemnify the purchaser of products for any consequential claim for damages or loss of operations or profits and ELPRO is not liable for any consequential damages or loss of operations or profits r...

Страница 5: ...OSTICS CHART 31 6 1 CONNECTIVITY 31 6 1 MONITOR COMMUNICATIONS 31 6 1 STATISTICS 32 6 1 PING 32 6 1 IPCONFIG 32 6 1 ARP 32 6 1 ROUTE 32 Accessing Configuration inside a module for the first time 14 Mo...

Страница 6: ...rnally The positive side of the supply must not be connected to earth The supply may be a floating supply or negatively grounded The power requirements of the 905U E units is 700mA at 12VDC or 450mA a...

Страница 7: ...k is established in controlled mode on always in transparent mode 2 RD Out Transmit Data Serial Data Output 3 TD In Receive Data Serial Data Input 4 DTR In Data Terminal Ready DTR can be configured to...

Страница 8: ...the polarity of the two RS485 wires An RS485 network should be wired as indicated in the diagram below and terminated at each end of the network with a 120 ohm resistor On board 120 ohm resistors are...

Страница 9: ...signal Radio TX Flash Radio Transmitting Serial RX GREEN flash RED flash Serial Port Receiving CTS low Serial TX GREEN flash Serial Port Transmitting LINK On On when a radio communications link is est...

Страница 10: ...same system address will communicate with each other This feature allows more than one system to operate in the same area on the same radio channel 3 3 Bridge Mode Joins sections of the same network W...

Страница 11: ...ents to synchronise their link with an individual AP 3 3 Client A Client is a How is a Connection Established Client Scanning RX LED flicker Select best RSSI Joining Timer Synchronisation Leadin short...

Страница 12: ...s the hopping sequence used by the 905U E is different to other devices on this band the probability of two devices using the same channel is small and if this does occur the probability of sharing th...

Страница 13: ...adding another module to an existing system use the same value as the existing modules If you are starting a new system select random values and use the same value for each module The Device Mode mus...

Страница 14: ...odule for the first time There are two methods for accessing the configuration inside a 905U E The first method requires changing your computer settings so that the configuring PC is on the same netwo...

Страница 15: ...Chapter Five Specifications Page 15 February 2005 Select Internet Protocol TCP IP and click on Properties...

Страница 16: ...e that settings will allow you to connect to the IP address selected If the PC uses a proxy server ensure that Internet Explorer will bypass the Proxy Server for local addresses This option may be mod...

Страница 17: ...905U E to RUN OFF position and cycle power to resume normal configured operation Option 2 Set 905UE to same network as PC a Switch dip switch on 905U E to SETUP ON position b Open a terminal package w...

Страница 18: ...0 connected at 10M Half Duplex fec0 local ip 169 254 101 93 server ip 169 254 101 1 Press ENTER to abort automatic booting 30 d Check values for Boot Address Boot Netmask and Boot Gateway These values...

Страница 19: ...configured password in the password field If IP address or password has been forgotten the Factory Default switch may be used to access the existing configuration Refer to Option 1 Accessing Configur...

Страница 20: ...ent from the Ethernet IP Address By default this is set to 192 168 123 123 Wireless IP Subnet Mask The network mask of the 905U E on the radio port If configured as a Bridge this must be the same as t...

Страница 21: ...in the event of severe interference to smaller periods of time This also has an impact on the maximum size of Fragmentation Threshold that may be configured By default this is set to 400 milliseconds...

Страница 22: ...al from the list Whitelist or Blacklist Uncheck the box to make the list a blacklist This will ban all devices with a MAC address in the list from communicating with the 905U E or utilising the radio...

Страница 23: ...nd Save Update settings in RAM and save to non volatile memory Module Information Webpage Fields This configuration page is primarily for information purposes With the exception of the password the in...

Страница 24: ...905U E Wireless Ethernet Bridge User Manual Man_905U E Rev 1 0 Page 24...

Страница 25: ...n webpages of 905U E Refer section Accessing Configuration inside a module for the first time or Modifying an existing configuration 2 Click on System Tools Menu Item 3 Enter username user and passwor...

Страница 26: ...uration webpage with Internet Explorer at address http 192 168 123 123 Option B Adjust 905U E network settings assuming configuration PC is on existing network Open terminal program with settings with...

Страница 27: ...ress of 905U E to 192 168 0 201 with command bip 192 168 0 201 At step 0 in Option B open configuration webpage with Internet Explorer at address http 192 168 0 201 At step 7 set the Operating Mode to...

Страница 28: ...0 200 Network B Configuration All devices on Network B should be configured so their gateway IP address is that of the 905U E Access Point as 192 168 50 200 Access Point Configuration 1 Connect straig...

Страница 29: ...2 Set the system address to ExampleSystem1 13 Enable Radio Encryption and enter key 1 as 01 02 03 04 05 key 2 as 06 07 08 09 0A key 3 as 0B 0C 0D 0E 0F key 4 as 10 11 12 13 14 14 Click on button Save...

Страница 30: ...re and Forward hop 905U E Access Point Bridge 905U E Client 1 Bridge Existing Ethernet Network 192 168 0 0 255 255 255 0 Ethernet HUB SWITCH 905U E Client 2 Bridge PLC Configure units as described in...

Страница 31: ...l RX LED ON GREEN flash RED flash Serial Port Receiving Input buffer almost full Serial TX LED ON Flashes briefly Serial port transmitting LINK LED ON Continuously A radio link has been established Th...

Страница 32: ...905U E Wireless Ethernet Bridge User Manual Man_905U E Rev 1 0 Page 32 6 1 Statistics 6 1 PING 6 1 IPCONFIG 6 1 ARP 6 1 ROUTE...

Страница 33: ...f an eight wire cable was being used for instance the signal would start on pin one at one end of the cable and end up on pin eight at the other end They cross over from one side to the other CSMA CA...

Страница 34: ...for high speed data voice and video transmission over ordinary twisted pair copper POTS Plain Old Telephone Service telephone wires Encryption key An alphanumeric letters and or numbers series that en...

Страница 35: ...These computers generally offer customized web browsing touch screen navigation e mail services entertainment and personal information management applications IP A set of rules used to send and receiv...

Страница 36: ...ions printers files and drives Receive Sensitivity The minimum signal strength required to pick up a signal Higher bandwidth connections have less receive sensitivity than lower bandwidth connections...

Страница 37: ...onnectors RJ 45 connectors can have up to eight wires whereas telephone connectors have only four Server A computer that provides its resources to other computers and devices on a network These includ...

Страница 38: ...is either dynamically assigned at startup or permanently assigned All TCP IP messages contain the address of the destination network as well as the address of the destination station This enables TCP...

Страница 39: ...astructure Mode AH Authentication Header A field that follows the IP header in an IP datagram and provides authentication and integrity checking for the datagram ARP Address Resolution Protocol BER Bi...

Страница 40: ...card the MAC is radio controller protocol MAC Spoofing An attack whereby a system attempts to impersonate another system by using its MAC address NAT Network Address Translation The translation of an...

Страница 41: ...41 February 2005 WEP Wired Equivalent Privacy Encryption based security using a pre shared key WiFi Wi Fi Wireless Fidelity Wireless Local Area Networking standard WLAN W LAN Wireless Local Area Netwo...

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