range between 12V and 15V. Polarity does not matter if you use AC. The DC output through Pin 1 and Pin 2 is fed from the power adaptor of the Video Server or pin 11 and pin 12 if an external power source is attached. The current of external devices is limited to less than 500 mA.

b.COM 1 RS-485:If the device connected to the COM1 port has an RS-485 interface, such as a PTZ camera control, wire the RS-485 Data+ and Data- control lines to COM RS-485 pin “+” and pin “ –”. If the distance from the controlled device is too long to allow accurate function, an external power source may be used to pull the RS-485 signal to “high” status.

c.Digital Input/Relay Output: VPort 2140 Video Server provides 4 digital inputs and 2 relay outputs. The Digital Input’s “+” pin and “-” pin can be connected to an external sensor to monitor the voltage according to the programmed scripts in configuration (see the “Command Script for DI/DO & Camera’s Actions Setting” in Chapter 5). The Relay Output’s “NO” pin (Normal Open), “NC” (Normal Close) pin, and “C” pin (Common) can be used to turn an external alarm on or off. When the system starts up, both relay outputs’ “Common” pin will short the “NC” pin. A simple example is illustrated in the diagram below.

If DI1 is configured to “rising” status, so that DO1 is driven to “high” status (resulting in DO1’s “Common” pin shorting the “NO” pin), the light bulb will light up when DI1’s signal changes from 0V to 12V.

COM 1 RS-485 and COM 1 RS-232 share the same UART chip. If one of the ports is being used, the other port will not be available.

11: 10/100 Mbps Ethernet

An RJ45 10/100 Mbps Ethernet connector can be connected to an Ethernet network with a UTP category 5 cable of length shorter than 100 meters (according to the Ethernet standard). Once the Ethernet cable is connected correctly, the Video Server will use the Ethernet interface before using the modem attached to COM 2.

12: INPUT 12 VDC

Connect the power jack of the included 12 VDC power adaptor. Connecting the power adaptor should be the last step involved in the Video Server hardware installation. Administrators may feed an external power source through pins 11 and 12 of the GPIO terminal block to replace the power adapter.

The Video Server power adaptor and the external power supply (from pins 11 and 12 of the Terminal Block) cannot be used at the same time. Only one power source can be used to feed power to the Video Server. Improper usage will result in serious damage to your Video Server.

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Moxa Technologies 2140 user manual 11 10/100 Mbps Ethernet, Input 12 VDC

2140 specifications

Moxa Technologies has established a strong reputation in the realm of industrial networking and communications, and one of their standout products is the Moxa Technologies 2140. This device serves as a versatile and robust solution for various applications in industrial settings.

The Moxa 2140 is primarily recognized for its ability to seamlessly integrate serial devices into Ethernet networks. This capability is essential in modern industrial environments, where legacy equipment must often communicate with newer systems. The device functions as a serial device server, converting serial data into Ethernet packets, enabling efficient data transmission without compromising on speed or reliability.

One of the key features of the Moxa 2140 is its support for multiple serial communication protocols, including RS-232, RS-422, and RS-485. This wide compatibility ensures that users can connect a diverse range of devices, from older machinery to contemporary sensors, without needing extensive modifications. The Moxa 2140 can handle various communication speeds, allowing for flexibility in different industrial scenarios.

In addition to its protocol support, the Moxa 2140 boasts dual Ethernet ports, which facilitate network redundancy and enhanced reliability. This capability is crucial for industrial applications that demand continuous uptime, as it minimizes the risk of network failures. The device supports both static and dynamic IP address configurations, simplifying integration into existing networks.

The Moxa 2140 is equipped with advanced security features, including secure data transmission via SSH and HTTPS. This ensures that sensitive industrial data remains protected from unauthorized access, a critical consideration in today’s cybersecurity landscape. The device also includes built-in support for SNMP (Simple Network Management Protocol), enabling administrators to monitor network status and troubleshoot issues efficiently.

Another noteworthy characteristic of the Moxa 2140 is its rugged design, built to withstand harsh industrial environments. Its robust housing protects against dust, moisture, and temperature fluctuations, making it suitable for deployment in factories, outdoor settings, and other challenging conditions.

Overall, the Moxa Technologies 2140 is a powerful and flexible tool that meets the demands of modern industrial communications. Its combination of protocol support, dual Ethernet ports, security features, and durability make it a preferred choice for companies looking to enhance their communication infrastructure while ensuring versatility and reliability in their operations.