General
Number of ports	8

The Moxa Opt8-RJ45 is an 8-port RS-232 connection box that enables structured and reliable connection of multiple serial devices to a serial host card. It is specifically designed for industrial applications where stable and organized interface connections are required. The box provides eight independent RS-232 interfaces, which are connected to end devices via 8-pin RJ45 connectors. Connection to the host card is made via a DB62 connector, ensuring compatibility with corresponding serial cards. The connection box is part of a product family that also includes variants with DB9 and DB25 connectors, making it flexible for different device configurations.

Applications

The Opt8-RJ45 is suitable for industrial environments where multiple serial devices such as sensors, controls, measuring instruments, or peripheral units need to be connected to a central system. The use of RJ45 connectors provides a standardized and robust connection that integrates well into existing network infrastructures. The box is particularly suitable for installations where clear assignment of serial ports is required to avoid errors in device management.

Functions and Equipment in Detail

Each of the eight RS-232 ports features LED indicators for transmit (TxD) and receive activity (RxD), enabling visual monitoring of operation. These indicators assist in troubleshooting and verifying communication integrity. Supported baud rates range from 50 bps to 921.6 kbps, ensuring broad compatibility with various serial devices. The connection box is supplied with a 1.5 m long connection cable that, depending on the model, connects either DB62 ↔ DB62 or VHDCI 68 ↔ DB62. This cable simplifies installation and reduces the need for additional cable connections.

Technology Explained Simply

The RS-232 interface is a standard for serial data transmission used in many industrial and technical devices. The Opt8-RJ45 acts as a switching station, receiving serial signals from eight end devices and forwarding them to the host card. The use of RJ45 connectors provides a mechanically stable and easy-to-handle connection, suitable for industrial environments with limited space. The DB62 connection to the host card is a common standard in industry for serial interface cards, ensuring compatibility with existing systems.

Compatibility and Accessories

The Opt8-RJ45 is compatible with host cards featuring a DB62 connector. The connection box is part of a model series that also includes variants with DB9 and DB25 connectors, allowing flexible use for different device configurations. The connection cables are model-dependent and enable direct connection to the host card.

Mounting and Installation

Mounting is achieved by directly connecting the RJ45 connectors to the serial end devices and the DB62 connection to the host card. The connection box itself is compact, with dimensions of 152.8 mm × 32.8 mm × 32 mm, allowing placement in tight spaces. Installation requires no special tools or additional components.

Operational Advantages

The Opt8-RJ45 provides a clear and structured connection for multiple serial devices, simplifying fault diagnosis and maintenance. The LED indicators allow quick verification of communication activity, and the use of RJ45 connectors ensures a robust and reliable connection. The integrated cable extension reduces the need for additional cables, making installation more efficient. The box is designed for use in industrial environments where stable and maintenance-friendly interface connections are required.

The connection box is supplied with a 1.5 m long connection cable that, depending on the model, connects either DB62 ↔ DB62 or VHDCI 68 ↔ DB62. The delivery includes a single 8-port RS-232 connection box (model-dependent).