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Cirronet SEM2410, Руководство пользователя

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Cirronet SEM2410 Скачать руководство пользователя страница 19

 

 2000, 2001  Cirronet

 Incorporated 

16

 M-2410-0007 Rev - 

For example, where SEMs are deployed one-half mile apart, a dx value of 04 should be 
entered. To enter this value, at the SEM> prompt type: 

 

radio a param dx 04<CR> 

Save this value by issuing the save command: 

 

save<CR> 

The dx value will take effect immediately. It is not necessary to issue a reset command. 
Note that it is possible to set a dx value for a range longer than what is supported by the 
antennas in use. To obtain the longest possible ranges outdoors, high-gain directional 
antennas are required. 

Содержание SEM2410

Страница 1: ...SEM2410 Wireless Ethernet Modem Bridge User s Manual October 17 2001 5375 Oakbrook Parkway Norcross Georgia 30093 www cirronet com 678 684 2000...

Страница 2: ...and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a r...

Страница 3: ...Mode 6 Point to Mulitpoint Mode 6 TCP IP Addresses 8 Filtering 8 DHCP 8 SEM Command Set 10 Ethernet Commands 10 SEM Radio Commands 11 SEM System Commands 13 Radio Modem Configuration 14 Radio Commands...

Страница 4: ...he communication between SEM products is performed using the WIT2410 over the air protocol Thus the SEM products are 802 3 compatible but not 802 11 compatible and provide 460Kbps data throughput Cert...

Страница 5: ...baseband cable that can be ordered in 100 foot increments up to 500 feet in length The SEM2410X has a 15 pin connector in place of the TNC connector on the SEM2410 The 10BaseT Ethernet connector is t...

Страница 6: ...d that the power switch is in the ON position TXD and RXD are indicators of data activity They indicate the transmission and reception of data over the Ethernet connection Note that these LEDs can be...

Страница 7: ...rted by clicking on Start Run if you have Windows 95 98 NT 2000 and the TCP IP client has been installed For a SEM with an IP address of 192 168 0 254 enter the following information in the dialog box...

Страница 8: ...back the time it took to the save the information Reset the SEM by typing reset CR The SEM can also be reset by cycling power Whenever a reset is executed on the SEM the telnet session will be lost It...

Страница 9: ...mote radio When a master SEM is powered on it becomes active immediately even if no slave SEMs are detected It will attempt to send packets addressed to devices that it thinks are not on its local net...

Страница 10: ...s the better approach is to pick the hop duration to maximize data throughput without unnecessarily penalizing latency The maximum number of bytes that can be transmitted on a single hop by either a m...

Страница 11: ...vices not on its subnet To display the routing table use the route list command There will always be one entry in the routing table that corresponds to the IP address in the SEM For most applications...

Страница 12: ...sing the route command See the previous section for details of the route command If an IP address has previously been entered into the SEM but a DHCP server is to be used to assign an IP address it wi...

Страница 13: ...Adds IP address and netmask to route list Deletes IP address from route list Lists route IP addresses socks Displays network socket information arp Manipulates the address resolution procedure table T...

Страница 14: ...up override Displays synchronization settings Sets SEM as sync slave Sets synchronization mode to use RJ 11 wire ports bridge Selects filtering mode and sets master slave status filter disable turns f...

Страница 15: ...rks The default mode is the sync OFF Sync is enabled by selecting a synchronization method ether and wire are mutually exclusive commands and set the synchronization to occur over the Ethernet or over...

Страница 16: ...mands Most commands that require a parameter also have a help mode that displays the help screen for that command reset Resets the SEM and loads saved parameters into active memory Also causes the SEM...

Страница 17: ...EM Command Description help Displays command list banner Displays power on banner for the radio in the SEM defaults Resets the radio parameters to the factory shipped values maxremotes 0 5 Displays va...

Страница 18: ...ptimization parameter should be set in the remote SEMs This parameter is set using the radio a param command with dx as the sub command The dx sub command has a single argument that is a hexadecimal v...

Страница 19: ...prompt type radio a param dx 04 CR Save this value by issuing the save command save CR The dx value will take effect immediately It is not necessary to issue a reset command Note that it is possible...

Страница 20: ...equency hopping up to 64 user selectable hopping patterns Frequency Range 2400MHz to 2483 5MHz Operating Voltage Range 7VDC to 26VDC Enclosure Ruggedized Aluminum Dimensions 201 x 144 x 53 mm 7 9 x 5...

Страница 21: ...router make sure that the correct address has been entered in the routing table The SEM does not respond through the Configuration Port Check that a straight through serial cable is being used if con...

Страница 22: ...to the goods such as but not limited to power failure No suit or action shall be brought against Seller more than twelve 12 months after the related cause of action has occurred Buyer has not relied...

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