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| | USB to Dual Serial port converter with DB9 connectors. RS-422/RS-485 Optical Isolation & Surge Protection
Features : USB-2COMi-SI-120V (120 volt, 60 hz version):
USB to dual serial port converter with DB9 (9-pin male) connectors. RS-422/RS-485)
Comes with a USB cable & power supply (120 volt, 60 hz).
This model supplies Optical Isolation & Surge Protection.
Each RS-422/485 port is individually optically isolated with 2000 volt DC optical isolation. The optical protects your PC or notebook from spikes and surges on the RS-422/485 network, by converting the electrical pulse into an optical signal and then changing it back into an electrical pulse. Your computer is well protected, since the surges and spikes cannot cross the optical link.
Each RS-422/485 port is individually protected by surge prot...
Part
No. USB-2COM-I-SI | View
Details |
| | USB-2COMi-M USB to Dual RS-232/RS422/RS-485 Industrial Adapter
Features : VScom USB-2COMi-M
USB to 2 RS422/485 ports adapter
Serial ports on USB allow further use of existing devices, even when the computer doesn't offer serial ports. The high speed serial port with the 128 byte FIFO allow high speed communication, even in heavy loaded systems. Unique features reduce the system load. The serial port also allows unusual speed settings like 500.000bps.
Features
Metal case
DIN-Rail mountable
2 RS422/485 DB9 male ports
Terminal block
Speed up to 921.6kbps
No external power supply
Specifications
Ports 2 RS422/485 ports
Speed Up to 921.6kbps
RS422/485 signals RS422 TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND
RS485 Data+/-, GND
Power U...
Part
No. USB-2COMi-M | View
Details |
| | USB to dual serial port converter with DB9 (9-pin male) connectors. RS-422/RS-485
Features : USB-2COMi
l Adds two high speed RS-422/485 ports via USB connection.
l 384 byte receive buffer.
l 128 byte transmit buffer for high data throughput.
l Auto transmit buffer control for RS-485.
l Data rates: 300 bps to 230K bps.
l Serial connector: Two DB-9 male connectors.
l Easy connectivity to printers, POS, Industrial control devices.
l Data signals: TX-, TX+, RX+, RX-, GND, RTS-, RTS+, CTS+, CTS-.
l Self-powered. External power supply included.
...
Part
No. USB-2COM-I | View
Details |
USB to dual serial port converter with DB-9 connectors. RS-422/RS-485
from $79.89
