Features
Plug & Play installation
Built in 15KV ESD protection for signals
RS-422/485 surge protection
Built in 100 ohm Termination resistor
LED indicator for transmission status
 
Specifications
Serial Interface 1 port
Port Type : 1x RS-232 Port (DB9)  to 1x RS-422/485 Port (4-pin Terminal Block)
Connector : Male DB9 / 4-pin Terminal Block
Speed : 300 bps ~ 230.4 Kbps
Parity : None , Odd , Even , Mark , Space
Data Bit : 5, 6 , 7 , 8
Stop Bit : 1 , 2
RS-232 : Rx , Tx , GND 
(RTS & CTS is shorted, DTR, DSR & DCD are shorted)
RS-422 : Rx+ , Rx- , Tx+ , Tx-
RS-485 : Data+ , Data-
Built–in : RS-422/485 pull high / low Resistor
Protection : 422/485 Surge Protection
Built in 15KV ESD protection for all signals
Termination Resistor built in 100 Ohm Termination resistor switch On/Off
Distance : Up to 1250 Meters.
 
Power Supply
Input: DC 5V, 20mA@ 12VDC
Mode: DC jack adapter
Wrong polarity input protection
 
LED
Rx, Tx
 
Regulatory Approval
FCC Part15 Class A
CE EN55022 Class A, EN55024
RoHS Compliance
 
Environment
Temperature : Operating: 0°C ~ 65°C (32°F ~ 149°F)
Storage: -20°C ~ 70°C (-4°F ~ 158°F)
Humidity : Operating: 10% ~ 95% non-condensing
Storage: 5% ~ 95% non-condensing
 
Dimension & Weight
Dimension 55 x 40 x 25 mm
Weight 35g
 
Warranty
 1 Year