USB To RS485 Converter, Two-way Conversion

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$71.59

Ex Tax: $71.59

Stock: In Stock
Model: RDDLZ-UT-2201
Weight: 1.00
SKU: RDDLZ-UT-2201

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Lower price USB to RS485 adapter cable with 300bps-115.2Kbps baudrate, asynchronous half-duplex differential transmission working mode, -25℃ to 70℃ operating temperature.

Specification

Model	RDDLZ-UT-2201
Standards	RS-232C, RS-485 EIA/TIA
Connector	RS-232 DB9 female; RS-485 DB9 male, with terminal block
Working mode	Asynchronous half-duplex differential transmission
Transmission media	Twisted-pair or shielded cable
Baudrate	300bps-115.2Kbps
Dimension	63mmX33mmX17mm
Operating temperature	-25℃ to 70℃
Relative humidity	5% to 95%
Transmission distance	1200m(RS-485), 5m(RS-232)
Weight	1kg
Certificate	RoHS, CE, FC
Warranty	12 months

Dimension (mm)

Details

Tips: The difference between RS232 and RS485 Converter.

1. Communication quantity of the interface:
As mentioned above, the RS232 interface can only connect 1 transceiver on the bus, and does not support multi-station transmission and reception, so it can only communicate with point to point.
The RS485 interface allows up to 128 transceivers to be connected on the bus. That is, it has multi-station communication capability, so that users can use a single RS485 interface to easily establish a device network.
2. Electronic characteristics of the interface:
RS232 transmission level signal: The signal level of the interface is high, which is easy to damage the chip of the interface circuit, and because it is incompatible with the TTL level, a level conversion circuit is needed to connect to the TTL circuit. In addition, the anti-interference ability is poor.
RS485 transmission differential signal: logic "1" is represented by the voltage difference between the two wires as +(2-6) V; logic "0" is represented by the voltage difference between the two wires as -(2-6) V. The interface signal level is lower than RS-232, it is not easy to damage the chip of the interface circuit, and the level is compatible with the TTL level, and it is convenient to connect with the TTL circuit.

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