Справочник Пользователя для WJ Communications Inc. SR320

•  Cross-over cable 

 
Contents may vary slightly depending on the model number and options purchased.   

 
The Stationary reader should be installed in a location protected from physical impact.  The reader may 
support up to 4 transmit-receive antenna pairs.  The antennas should not be located more than 5 meters (15 
feet) from the reader.  The reader should be securely mounted using the four mounting holes provided, 
preferably in a vertical orientation allowing air to flow along the length of the cooling fins.  At least 12 cm 
(5 inches) of clearance should be provided in all directions from the reader.  The reader and antennas 
should not be located close to a strong source of RF interference such as a cordless telephone or 900-MHz 
wireless local area network (WLAN) base station.  The antennas should not have any conductive (metallic) 
obstructions within 50 cm in the direction in which tag reading is to be performed. 
 
A possible installation sequence is as follows: 

1.  Mount the reader to a secure, stable surface, with adequate clearance and air flow. 
2.  Attach the antenna cables to the relevant R-TNC connectors at the reader, and N-type connectors 

at the antenna.  Terminate unused R-TNC connectors with 50 ohm loads. 

3.  Connect the 24 VDC power supply cable to the reader.   
4.  Place one or more C1G2 RFID tags in front of one of the antenna pairs, within 1-2 meters. If 

using C3 tags, the recommended distance is 3-5 meters. 

 
It is important to note that transmit and receive antennas must be connected in pairs to corresponding 
connectors.  Thus, if only one antenna pair is employed, the transmit antenna may be connected to any of 
the transmit connectors (e.g. TX1), but the receiving antenna must then be connected to the corresponding 
receive connection (RX1 in this case).  Antenna ports not used should be terminated with the 50 ohm 
terminations provided.  If separate transmit and receive antennas are employed, it is important that they be 
oriented so as to view the same illuminated area, and preferably be coplanar so as to minimize coupling 
between the antennas.   
 
At this point the reader should be ready for operation using the demonstration graphical interface software, 
or other custom control software.   

 
The following description assumes the host computer is operating under Microsoft Windows XP 
Professional; slightly different screens will be visible if another operating system is employed.   
 

This software requires a host computer, with the following requirements: 
 

o

  PC running Windows 2000 or Windows XP Professional 

o

  128 MB of RAM 

o

  50MB of hard disk space 

o

  Ethernet port 

o

  RS232 port desirable but not essential 

o

  CD-ROM 

 
Note that if the host computer is connected directly to the Reader Ethernet/RS232 interface, the associated 
Ethernet cable must be of the crossover type. 

Copyright© 2006 by Intelleflex Corp.  Subject to change without notice.  This information is provided “as is,” and 
Intelleflex makes no claims of fit for purposes intended, merchantability or other.  All trademarks, service marks, trade 
names and logos are used in good faith and remain the property of their rightful owners.

  

page 4