Features:
1. 9VDC power input, 2500V optical isolation
2. Plug-and-Play(hot-pluggable, data format auto-sensing & self-adjusting)
3. Data direction auto-turnaround, no flow control is necessary
4. 1500W surge protection, 15KV ESD protection
5. 1800m transfer distance (115200bps)
6. RS-485/RS-422 connector RJ45, DB9M or 5 bit terminal block
Specification:
Standards: EIA RS-232C, RS-485, RS422 standard
RS-232 signal: TX, RX, GND
RS-422 signal: T+, T-, R+, R-, GND
RS-485 signal: D+, D-, GND
Working mode: Asynchronism, point to point or multi point, 2 wire half-duplex,4 wire full duplex
Baud rate: 300~115200bps, auto test serial signal rate detect signal speed automatically, zero delay time
Flow control: Data direction auto-turnaround, no flow control is required
Transfer distance: RS-485/422 side:1.8Km,115200bps
RS-232 side: no less than 5m
Max number of drops: 128 nodes
Optical isolation: 2500V
Port protect: 1500W surge protection,15KV ESD protection
Power
Power input: 9VDC power input
Consumption: Static less than 120mA, dynamic less than 350mA
Environment
Operating temperature: -10°C to 60°C
Storage temperature: -40°C to 85°C
Humidity: 5% to 95%(no condensation)
Appearance
Dimensions: 93.0mm×62.4mm×22.0mm
Material: Iron(shell) 
Color: White  
Weight: 200g
Warranty: 5 years
Approvals: FCC, CE, RoHS approvals