RS232/485 Interface Conversion Module
Googol Technology (HK) Ltd.
RS232/485 Interface Conversion Module
Realize half-duplex conversion from RS-232 interface to RS-485 interface.
When applying RS-485 network communication,
because the whole communication system is connected
through RS-485 bus and each control unit is far from
each other, to ensure the system reliable, RS-485
interface terminal adopts the separate driving mode in
each channel and photoelectric isolation with 3500V
isolating voltage to connect host-linked RS-232 with
RS-485 interface terminal. The high-speed transient
voltage suppresser (TVS) can effectively restrain
lightening and ESD, and effectively avoid lightening
strike or other interferences.
Technical Specification
Interface characteristics:
RS-232C and RS-485 standard compatible with EIA/TIA.
Electric Interface:
DB9 female connector of RS-232C interface and RS-485 interface
module with a 10-pin terminal.
Transferring media:
Twisted-pair or shield cable.
Work mode:
Asynchronous half-duplex.
Signal indicator light:
Two double-color indicator light TXD and RXD.
Isolation voltage:
Isolated voltage 3500VRMS, 500VDC continuous.
Transmission rate:
115.2K bps for 1.2Km, 38.4K bps for 2.4Km and 9600 bps for
Protection grade:
+15KV ESD protection for RS-232 and 1500W lightening strikes
surging protection of each line for RS-485.
Transmission distance:
0-5Km (115200-9600bps)
Operating temperature: 0-60
Relative humidity:
5%- 90%, non-condensing
Googol Technology (HK) Ltd.
Hardware Structure
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