Description
RS-232 to RS-422 RS485 Addressable function, 3KV Optical Isolation, 600W Surge Converter with DIN Rail Kit
Item Number: SERAD-211i
What is RS485 Echo Mode
The point which is different from the method for RS485 Non-echo mode is that the output signal line by itself is input again to the input signal line.
Therefore, it is possible to confirm whether the data sent crashes with the data sent by another terminal or not by reading the echoed data.
This operating mode is scarcely used except in some special purposes.
On all operation is controlled by hardware circuit so no operation is required by application program.
Using 4-wire RS485
4-Wire RS485 Networking is same as RS422 Multi-Drop Networking.
RS422 device is used as master and RS485 device is used as slave in 4-Wire RS485 bus.
Although RS422 and RS485 have different electrical standards, most manufacturers make ICs that uses both RS422 and RS485 interface. RS422 Multi-Drop and 4-Wire RS485 can be considered equal.
Features and Benefit
Transmission speed up to 115.2 kbps
Built-in microprocessor
Watchdog timer function included
All communication setups stored in EEPROM
Power and data flow indicator for troubleshooting
Built-in Terminator 120 ohm for DIP Switch Setting
Addressable and non-addressable mode configurable
Max 10 Device connectivity for 4 Wire RS-485 ( RS-422 Multi-Drop) Mode
Max 32 Device Connectivity for RS-485 Mode
Communication status can be monitored through LED
3KV Optical Isolation Protection
600W Surge Protection
Built-in 15KV ESD protection for all Serial Port and RS-422/485 Signals Protection
Supports Industrial Specification
Specification
Hardware
RS-422/485 Connector: Terminal Block 7 Pin 5.08mm
RS-232 Connector: DB9 Female
Interface
Serial Standard: RS-232 and RS-422/485
Line Protection
ESD Protection: 15KV ESD Protection for all signals(for RS-232/422/485)
Optical Isolation Protect: 3KV Opto Isolation(for RS-422/485)
Surge Protection : 600W Surge Protection for RS-422/485 Signals(for RS-422/485)
Performance
Baud rate: 300 ~ 115,200 (RS-422/485 and RS-232
can set to different baud rate)
Data Format: (RS-232) (RS-422/485 is fixed to 1 stop bit, non-parity, 8
data bits format)
Distance
Max 1.2Km by 115.2Kbps, 24 AWG Twisted Pair Cable
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 2
Parity: None, Even, Odd, Space, Mark
Serial Signals
RS-232:
RXD, TXD, RTS, CTS signals
RS-422:
Differential 4 full duplex wires
Support TX+, TX-, RX+, RX- signals
Surge protection on signal pins
RS-485:
Differential 2 half duplex wires
DATA+, DATA- signals
Surge protection on signal pins
Physical Characteristics
Housing: PC
Environmental Limits
Operating Temperature: -30 ~ 75℃
Storage Temperature: -40 ~ 85℃
Ambient Relative Humidity: 5 ~ 95% Non-Condensing
Standards and Certifications
CE and FCC supports
Product Production
Production: Made in Taiwan
Product Location: Taipei, Taiwan
Package Content
RS-232 to RS-422/485 Addressable function 3KV Isolation 600W Surge Converter x 1
DIN Rail Kit x 1
Quick Instill Guide x 1
Driver CD x 1
