RS232 or RS485 to 4 port RS485 HUB

Specifications

Introduction:
SW4485 is a RS-485 bus segmentation HUB, specially designed for conforming to RS-485’s large-scale system requirements under the complex electromagnetic environment. Its supporting transmission rates reach up to 115.2Kbps. It adopts transparent transmission in both directions. It can convert 1 RS-485 or RS-232 to 4 RS-485, or transparently transmit any intersected RS-485 signal to RS-485 or RS-232 on PC. Each RS-485 port of its lower position controller has reverse fault alarm and protection function, through which,the network reliability of RS-485 has been improved, and the maintenance time of network has been shortened efficiently. In order to ensure the safety and reliability of data communication, the RS-485 interfaces of SW4485 are supplied with 2KVAC isolation protection, 3 levels of ESD protection and 2 levels of electrostatic radiation protection; they can prevent lighting, common ground and radiated interference, safe and reliable, are suitable for outdoor application.
SW4485 also provide star-RS485 BUS connection. Users can easily improve the RS-485 BUS structure, split network segment. You can design a unique and reliable RS-485 system through making reasonable use of SW4485.
SW4485 adopts EMC protection design, supports wall-mounting and panel-mounting installation, and can be used at the harsh environment from -40℃ to 85℃.
Features:
1.Support two RS-232 and RS-485 PC interfaces , and 4 RS-485 lower position controller ports
2.Support baud rate from 300bps to 115200bps
3.Each lower machine interface can be connected to 32 standard RS-485 devices(nodes)
4.Unique automatic circuit reverse alarm detection
5.Have automatic transceiver conversion function with zero delay
6.Support hot swap function, plug and play
7.Interface has 2KVAC isolation protection, 8KV ESD protection
(contact discharge) and 2-stage radiation immunity
8.Industrial design, IP40 protection
9.Support DIN-Rail and wall mounting installation
10.Working Temperature: -40~85℃

Specifications:
Communication Parameter
Interface Protocol: EIA RS-2332/485
Interface Number: 1x RS-232
1xRS-485
4x RS-485 lower position
controller interfaces.
RS-232 signal: TxD, RxD, GND
RS-485 signal: D+, D-, GND
Check: None, Even, Odd, Space, Mark
Data Bit: 5bit, 6bit, 7bit, 8bit
Stop Bit: 1bit, 1.5bit, 2bit
Baud Rate: 300bps~115200bps
Direction Control: RS-485 adopts data flow to automatic control technology
Transmission Media: twisted-pair shielded cable or UTP 485 dedicated line
Load Capacity: RS-485: 32-node( can be customized 128 nodes)
Port Protection: 2KVAC isolation protection, 3
levels of ESD protection, 2
levels of electrostatic
radiation protection
Transmission Distance:
RS-485:1200m,
RS-232 : no more than 5m
Interface mode
RS-232 PC port mode: DB9M Male
RS-485 PC port mode: 3PIN terminal block
RS-485 Lower Position Controller port mode: 10 PIN terminal block
Indicator
PWR: power indicator
TXD: data delivery status indicator
RXD: data receiving status indicator
E1~E4: status indicator of RS-485 lower position controller interface
Power
Input: 5VDC
No-load Power: 0.455W@5VDC
Full Power: 0.485W@5VDC
Mechanical Structure
Shell: IP40 protection grade, high-strength metal casing
Installation: Wall-mount and Panel-mount
Weight: 250.8g
Size: 22mm×69mm×100mm
Working Environment
Working Temperature: -40~85℃
Storage Temperature: -40~85℃
Humidity: 5%~95%( no condensation)
Industry Standard
EMI: FCC Part 15, CISPR(EN55022) class A
EMS: EN61000-4-2(ESD), Lece3
Shock: IEC60068-2-27
Free Fall: IEC60068-2-32
Shake: IEC60068-2-6
Warranty Period: 5 years
Approvals: CE, FCC, RoHS,
UL508(Pending)