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Accessories
IR-keyboard
IR-keyboard for LD and TT signs. IR (infrared) makes you able to communicate wireless with the sign within 20 meters. You can also connect a cable of maximum length 100 meters between the keyboard and the sign. Please note that the IR-keyboard are enclosed with the LD and TT signs.
![Poltech [tillbehör: IR-tangentbord]](http://www.poltech.se/bilder/produktbilder/IRtangentbord%5F200x110.jpg)
Keyboard DD
Keyboard for Data Line, Bi-line and Combivision signs.
(Swedish)
Temperature sensor
Temperature sensor for POLTECH signs. The sensor are enclosed with the TT signs.
Xport
TCP/IP connection to sign.
GPS
Time synchronization provided by GPS.
POLNET modem
POLNET modem for communication with signs in a network. Available with RS232 and TCP/IP.
See Software, system, network and communication >>
RC1180-232
Radiomodem for communication with signs.
See Software, system, network and communication >>
MC 99
Switch for control of up till 99 messages.
BMC 16
Optocpoler for control of up till 16 messages.
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![Poltech [tillbehör: IR-tangentbord]](http://www.poltech.se/files/stora_bilder/IRtangentbord%5F503x276.jpg)
