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Cirronet CR-SEH, Руководство пользователя

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CR-SEH 

and is the default. 

24

 is the minimum value and 

48

 is the maximum value. The dwell time is 

changed to optimize the data throughput for a given installation. 

set

 selects a limited frequency band to be used. The default value is 1 which uses the entire 

frequency. For operation in France use a value of 8 and for Israel and Canada, use a value of 
9. The CR-SEH radio also has 6 hop sets that avoid 802.11b channels. This allows the CR-
SEH to operate in environments with an 802.11b network without interfering with the 
802.11b network. The table below provides details of the hop sets. 

Hop 
Set  

Frequency Range

 

802.11b Channels 
Avoided 

# of Channels 

0 

2400 – 2483MHz 

None 

43 

1 

2430 – 2483MHz  

2412MHz, 2417MHz 

27 

2 

2400 – 2410, 2440 – 2483MHz 

2422MHz, 2427MHz 

27 

3 

2400 – 2420, 2450 – 2483MHz 

2432MHz, 2437MHz 

27 

4 

2400 – 2430, 2460 – 2483MHz 

2442MHz, 2447MHz 

27 

5 

2400 – 2440, 2470 – 2483MHz 

2452MHz, 2457MHz 

27 

6 

2400 – 2450, 2480 – 2483MHz 

2462MHz, 2467MHz 

27 

7 Reserved 

 

 

8 

2422 – 2447MHz (France, 
Israel) 

 15 

9 

2453 – 2479MHz (Canada, 
Mexico) 

 15 

 

The frequency of the 802.11b channel avoided refers to the center frequency of the 802.11b 
channel. 

slave 

list

 displays the serial numbers of the radios in the CR-SEHs that are currently registered 

with the CR-SEH. 

disconnect

 terminates the connection between the master CR-SEH and 

the slave CR-SEH with the radio serial identification number entered. The radio serial 
identification number must be entered with the “-“’s and can be found using 

list

.  

sync 

These commands set the operation of the synchronization signal used in co-located CR-SEH 
networks. The default mode is the sync OFF. Sync is enabled by selecting a synchronization 

master

. Synchronization will occur over the RS-485 SYNC lines. One co-located master 

CR-SEH must be configured as the sync master. If sync has been enabled, the other co-
located master CR-SEHs will listen for a sync signal from the sync master. If no sync is 
heard, a co-located master CR-SEH will make itself a sync master and provide a sync signal. 
This is called the master backup override mode. 

override

 toggles the master backup 

override on and off. The default mode is ON. In standalone CR-SEH installations, 
synchronization is not required and should be left disabled.

 

 2000- 2004 Cirronet

 Inc 

24 

M-2411-0013 Rev A 

 

Содержание CR-SEH

Страница 1: ...CR SEH CR SEH X Wireless Ethernet Bridge User s Manual 5375 Oakbrook Parkway Norcross Georgia 30093 www cirronet com 678 684 2000...

Страница 2: ...same information Any other mode of operation using this antenna is forbidden Notice to users installers using the following fixed antennas with Cirronet RF products Andrews 24dBi parabolic dish Andre...

Страница 3: ...ransceiver EN 55022 EN 55024 EN 300 328 EN 301 489 1 17 EN 60950 Canadian Department of Communications Industry Canada IC Notice Canadian Department of Communications Industry Canada IC Notice This ap...

Страница 4: ...ust have the interconnecting multi conductor cable run in approved conduit for the location The cable must be in the conduit until out of the Hazardous Location and the conduit must be gas tight so no...

Страница 5: ...ility 8 HTML Setup 11 Console Port 14 Filtering 15 DHCP 15 CR SEH Operation 16 Overview 16 Security Modes 16 Point to Point Mode 16 Point to Multipoint Mode 17 Co located Networks 17 CR SEH Command Se...

Страница 6: ...the network connection Communication between CR SEH products is performed using the WIT2411 over the air protocol Thus the CR SEH products are 802 3 compatible but not 802 11 compatible and provides...

Страница 7: ...e Master The default settings in the CR SEHs are sufficient to allow connection to Ethernet networks and to have the slave CR SEH connect with the master Other steps you may want to take include Enter...

Страница 8: ...100BaseT Ethernet connector is the standard RJ 45 connector and is located on the bottom front of the CR SEH The CR SEH is set up to use a straight through cable to connect to a PC If a straight throu...

Страница 9: ...ecting and disconnecting the power connector The Ethernet LEDs include LINK TXD and RXD The LINK LED lights when a valid Ethernet connection is made The CR SEH is set up to use a straight through cabl...

Страница 10: ...hese cables may be ordered from Cirronet in lengths of 100 feet to 300 feet in 100 foot increments Figure 3 CR SEHX Front Panel Diagram The remote radio assembly has mounting holes to secure the anten...

Страница 11: ...ls are provided for special applications where multiple master CR SEHs are co located The synchronizing signals are RS 485 levels and may be connected using an RJ 11 connector If the sync signals are...

Страница 12: ...CR SEH must be connected to the uplink port on the hub TXD and RXD are indicators of Ethernet data activity They indicate the transmission and reception of data over the Ethernet connection Note that...

Страница 13: ...H from the DHCP server on the Master CR SEH s local network If the slave CR SEH cannot establish a link with the master CR SEH due to different network numbers or some other configuration setting the...

Страница 14: ...ch for Cirronet devices Only Cirronet Ethernet devices will be displayed as shown below Ethernet devices from other manufacturers will not be displayed even if they have no IP address Any devices foun...

Страница 15: ...address and the default netmask will automatically be entered as shown below A new Host Name may be entered if desired however the MAC Address cannot be changed Click OK and the IP address will be en...

Страница 16: ...p session in a browser window The login screen will display as shown below Enter the default Username admin and the default Password Cirronet case sensitive The password will be displayed as dots only...

Страница 17: ...lt Route enter DNS entries or change the Outmax upload download ratio for the radio setting If the CR SEH is to transmit data to devices not on its subnet a default router must be specified To set the...

Страница 18: ...word Verify fields Selecting Yes allows entries to be entered into the fields Details on these settings are provided in the section on Bridge Commands Bridge Connection Status This dialog displays sta...

Страница 19: ...settings for the console port are 38400 baud 8 data bits 1 stop bit and no parity The WinSEM program can be used to set up the CR SEH through the Console port The appropriate serial port must be selec...

Страница 20: ...st and or broadcast packets to slow the overall performance of the CR SEH Based on the number of broadcast and multicast packets they can consume a substantial amount of the RF bandwidth By turning fi...

Страница 21: ...access ip add command is used to add specific IP addresses from which telnet sessions will be allowed Up to 10 IP addresses can be entered This featured is defaulted OFF and is enabled through the ac...

Страница 22: ...roughput even at the expense of some throughput for the slaves This is the factory default configuration In frequency hopping technology the following applies the shorter the hop duration the lower th...

Страница 23: ...o be synchronized as to when they send to slaves and when they receive from slaves This synchronization is allowed by the FCC in the United States The FCC does not allow synchronizing of the hop seque...

Страница 24: ...sk ping ipaddr Pings TCP IP host reset Resets the CR SEH activating changed configuration parameters route help add default gwaddr netmask del ipaddr list Displays help screen for command Adds IP addr...

Страница 25: ...aved parameters into active memory Also causes the CR SEH to reinitialize which can take 30 seconds If reset is issued before the save command the new parameters are lost and the last saved parameters...

Страница 26: ...mode filter disable turns filtering off filter bcast filters out broadcast and multicast packet while filter mcast filters out just multicast packets filter show displays the filter settings login Tu...

Страница 27: ...mmand The default setting is disabled console disable removes the password requirement ip enable sets limitations set on initiating a telnet session to the CR SEH When enabled only network devices wit...

Страница 28: ...attern of the radio in the CR SEH Master only The fcc command enables the FCC rules regarding synchronization of frequencies when CR SEH masters are co located and synced using the sync signals The sy...

Страница 29: ...802 11b channel avoided refers to the center frequency of the 802 11b channel slave list displays the serial numbers of the radios in the CR SEHs that are currently registered with the CR SEH disconn...

Страница 30: ...ow 10dBm high 18dBm Default Sets radio output power show Displays radio parameters that have been modified from factory settings radio spid 0 254 Displays service provider ID Sets service provider ID...

Страница 31: ...n to be used show This command displays a list of the current radio parameters including the network number maxremotes and the sys outmax value spid The CR SEH has 64 different network numbers hopping...

Страница 32: ...t NEMA 4X UV stabilized polycarbonate Dimensions Network Interface Unit 201 x 144 x 53 mm 7 9 x 5 7 x 2 1 Remote Radio Unit 266 x 246 x 59mm 10 5 x 9 4 x 2 3 CR SEHX only Operating Temperature Network...

Страница 33: ...st is being used to initiate the telnet session The CR SEH does not respond through the Console Port Check that a straight through serial cable is being used if connected to a PC If you are not using...

Страница 34: ...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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