Hub (RS-485 / RS422)

1) Supplies 4-8 port RS-485/422 signal focus function
2) Each port support 256 points loopback 
3) All interface can supply more than 3kV optic electrical isolation
4) All ports setup short circuit and plough protection
5) Supports RS-232/RS-485 convert and RS-232/RS-422 convert, can also  support relay
6) Adopts beforehand aggravation technology design, even if the rate is at  9,600bps,
traffic distance also can reach up to 3,000m 
7) Uses ADDC, auto text and control data transfer direction
8) Auto test serial rate

Specifications: 
1) Standard: EIA RS-232, RS-485, RS-422 standard 
2) RS-232 signal: TX, RX, GND
3) RS-485 signal: D+, D-, GND
4) RS-422 signal: R+, R-, T+, T-, GND
5) Working: asynchronous format, single to single or more, 2 wires half  duplex, 4 wires full duplex
6) Direction: ADDC technology, auto text and control data transfer direction
7) Band rate: 300-115,200bps, auto test serial rate
8) Loading: support 256 modes loopback
9) Transmission: RS-485/422 port 3km (9,600bps), RS-232 port 5m
10) Interface protection: each port 600W surge protection, 15kV static protection, short circuit and plough protection
11) Isolation: each port have 3kV optic electrical isolation
12) Interface style: RS-232 port RJ45, RS-485/422 port RJ45
13) Working temperature: -20 to 60°C
14) Storage temperature: -25 to 85°C
15) Relative humidity: 5% to 95%
16) Input power: 220VAC
17) Consumption: 5W
18) Dimensions (L x W x H): 220 x 180 x 45mm
19) Shell: iron 
20) Color: black 
21) Weight: 900g