RS232 serial port hub solution development

Scheme development of RS232 serial port hub

technical parameter:

Performance parameter

1. Working mode: 1 in 4 out, 4 in 1 out, two-way communication

2. Isolation: isolation voltage 2500VRMS 500VDC continuous. DC/DC module

3. Transmission rate: 300-115200bps

4. Lightning protection: 600W/MS lightning protection

5. Electrostatic protection: 15KV

6 Power input: 5V or 9-30V

7. Working temperature: -40℃～85℃

8. Installation method: DIN caliper, wall-mounted (optional)

Product description:

 RS-232 bus splitting hub (HUB) realizes high-speed isolation conversion between one RS-232 and four RS-232,

NLK-4204 supports 1 RS-232 in 4 RS-232 out or 4 RS-232 in 1 RS-232 out bus communication mode!

NLK-4204 has four lower computer ports, and each port has a short circuit protection function and can work in shutdown mode.

When any RS-232 port is short-circuited, it will only affect the RS-232 bus system where it is located, and will not affect the normal operation of the RS-232 system connected to other interfaces. The product supports a transmission rate of 115.2KBPS. In order to ensure the safety and reliability of data communication, the RS-485 interface adopts optical isolation technology to prevent lightning surges from being introduced into converters and equipment. The built-in optical isolator and 600W surge protection circuit can Provides an isolation voltage of 2500V, which can effectively suppress lightning and ESD, and can effectively prevent lightning and common ground interference. The power supply adopts an external switching power supply

Power supply, safe and reliable.

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