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| COM930: USB to RS485/232 Converter |
COM920: Rs232 to RS485 level converter
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| USB2.0, plug and play |
Baudrate:115200-9600bps/0-5Km ,can up to 57600 at 1.2Km |
| Baud rate 300 ~ 921600 bps,auto detect the baudrate |
Self power ,data direction auto turnaround |
| TIA/EIA RS485-422 standard |
Operation mode:half duplex |
| Max can attach 32 RS485 device |
Static protection |
| Get power from USB,do not need extern power supply |
Cable length:2m |
| 15KV ESD protection |
Price: $25
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| Drivers for ME,2000,2003,2008,XP,Vista,win7,linux,MAC OS, Wince |
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| Price: $25
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| S9888 : Zero delay RS485 repeater |
S9889: Zero-delay Rs232 to Rs485 converter |
1. Zero-delay, isolated repeater
2. Surge-protected and isolated Rs485 ensure reliability
3. Allows for up to 254 unique devices on one RS485 network |
1. Zero-delay,isolated converter
2. Surge-protected and isolated Rs485 ensure reliability
3. Allows for up to 254 unique devices on one RS485 network |
| Price: $69
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Price: $50
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Technical_S9888.zip  |
Technical_S9889.zip |
| Repeater_wiring |
Converter_wiring |
