Reliable Surge Protection for RS232 Serial Communication Lines
LY11 is an inline serial communication surge protector designed for RS232 equipment using DB9 or DB25 connectors. It provides line-to-line and line-to-ground transient protection for industrial controllers, computers, modems, telemetry equipment, access-control systems, and other serial communication devices.
Designed for RS232 serial communication ports
Available with DB9 and DB25 connector options
Up to 1Mbps transmission with ≤0.2dB insertion loss
Fast response time of no more than 10ns
Aplicações Adequadas
LY11 is suitable for equipment that communicates through DB9 or DB25 RS232 serial ports and requires protection against induced transient overvoltage.
Industrial Controllers
Protects RS232 ports on PLCs, controllers, industrial computers, and machine interfaces.
Telemetry Equipment
Suitable for telemetry, remote sensing, remote-control, and data-acquisition equipment.
Modems & Serial Servers
Helps protect serial modems, protocol converters, terminal servers, and communication gateways.
Access Control Systems
Protects serial communication ports used by access control, security, monitoring, and alarm systems.
FAQ
Common questions about LY11 DB9 and DB25 RS232 signal surge protector selection and installation.
Para que é utilizado o protetor contra surtos LY11 RS232?
O LY11 é instalado em linha com uma conexão serial RS232 para ajudar a prevenir que sobrecargas temporárias atinjam computadores, controladores, modems, equipamentos de telemetria e outros dispositivos de comunicação serial.
Qual é a diferença entre as versões DB9 e DB25?
A versão DB9 é projetada para equipamentos que utilizam um conector serial de 9 pinos, enquanto a versão DB25 é destinada a interfaces seriais de 25 pinos. Selecione a versão que corresponde ao equipamento protegido e à disposição dos pinos.
O LY11 afetará a comunicação RS232?
The listed maximum transmission rate is 1Mbps and the insertion loss is no more than 0.2dB. The actual baud rate, pin assignment, cable length, and equipment compatibility should still be confirmed.
Does LY11 provide line-to-ground protection?
The product description identifies both line-to-line and line-to-ground surge protection. The grounding path must be short and connected according to the installation instructions.
How should LY11 be installed?
Connect the protector inline between the incoming serial cable and the protected equipment. Match the DB9 or DB25 connector direction and keep the grounding path as short and direct as possible.
O que deve ser confirmado antes de fazer o pedido?
Confirm whether DB9 or DB25 is required, the serial protocol, operating voltage, connector gender, protected pin assignment, baud rate, cable length, grounding method, and installation direction.
