HI 504902 RS485 Modem is a data service device produced by HannAINST company. It supports remote control. Its technical data includes voltage, size, weight, etc. Maintenance and safety tips include not exposing it to high temperature and humidity environments, and not connecting it to any digital telephone system.
The Hanna Instruments HI 504902 is an RS485 modem designed for remote control via AT commands. It operates on a 12V DC input voltage and features LED indicators for power, data receiving, and data transmission status. The device must be connected to a standard analog telephone line and should not be used with digital systems like ISDN or ADSL.
| Input voltage | 12 VOC |
|---|---|
| Dimensions | 165 x 110 x 35 mm |
| Weight | approx. 250 g |
| Warranty period | two years |
No, the modem must be connected to a standard analog telephone line. Connecting it to a digital system like ISDN or ADSL may cause damage and can be dangerous.
The blinking green RD LED indicates data receiving, while the flashing yellow TD LED signals data transmission.