5.2Controlling via RS-232

You can connect to the unit via a crossed RS-232 connection, using for example, a PC. A crossed cable or null-modem is required as shown in method A and B respectively. If a shielded cable is used, connect the shield to pin 5.

Method A (Figure 6)—Connect the RS-232 9-pin D-sub port on the unit via a crossed cable (only pin 2 to pin 3, pin 3 to pin 2, and pin 5 to pin 5 need be connected) to the RS-232 9-pin D-sub port on the PC.

Note: There is no need to connect any other pins.

9

5

9

5

4

4

8

8

3

3

7

7

2

2

6

1

6

1

 

 

PC

Figure 6: Crossed Cable RS-232 Connection

Hardware flow control is not required for this unit. In the rare case where a controller requires hardware flow control, short pin 1 to 7 and 8, and pin 4 to 6 on the controller side.

Method B (Figure 7)—Connect the RS-232 9-pin D-sub port on the unit via a straight (flat) cable to the null-modem adapter, and connect the null-modem adapter to the RS-232 9-pin D-sub port on the PC. The straight cable usually contains all nine wires for a full connection of the D-sub connector. Because the null-modem adapter (which already includes the flow control jumpering described in Method A above) only requires pins 2, 3 and 5 to be connected, you are free to decide whether to connect only these 3 pins or all 9 pins.

9

5

4

8

3

7

2

6

 

1

Null-Modem

Adapter

to PC

Figure 7: Straight Cable RS-232 Connection with a Null Modem Adapter

VP-81K - Connecting the VP-81K

11

Page 14
Image 14
Kramer Electronics VP-81 K user manual Controlling via RS-232, Crossed Cable RS-232 Connection

VP-81 K specifications

Kramer Electronics has established itself as a leading provider of innovative audio-visual solutions, and the VP-81 K is a noteworthy addition to their product lineup. This versatile presentation switcher is designed to accommodate a variety of audiovisual applications, making it ideal for classrooms, conference rooms, and professional events.

One of the standout features of the VP-81 K is its ability to handle multiple video formats. It supports both analog and digital inputs, including HDMI, VGA, and Composite video. This flexibility allows users to connect a wide range of devices, from laptops and projectors to higher-end sources and displays. The device seamlessly switches between input sources, ensuring a smooth presentation experience without interruption.

Another important characteristic of the VP-81 K is its built-in scaling technology. The device is equipped with a high-quality scaler that ensures output resolutions are optimized for a range of display formats. This means that regardless of the source resolution, the image quality remains crisp and clear, providing optimal viewing experiences for audiences.

The VP-81 K also boasts advanced audio capabilities. It allows for audio embedding and de-embedding, making it possible for users to manage both audio and video signals from a single device. This feature is particularly useful in settings where high-quality sound is essential, allowing for easier integration with external audio systems.

In terms of control, the VP-81 K is user-friendly. It provides multiple controlling options, including front-panel buttons, remote control, and RS-232 for integration with third-party systems. This flexibility ensures that users can easily manage their presentations, regardless of their technical expertise.

For enhanced security and performance, the VP-81 K features robust signal processing technology. It maintains signal integrity over long cable runs, ensuring that presentations remain professional and reliable. Additionally, the device is designed with durability in mind, utilizing high-quality components that withstand the rigors of frequent use.

Overall, the Kramer Electronics VP-81 K is a powerful and adaptable presentation switcher, equipped with essential features and cutting-edge technologies that cater to modern audiovisual needs. Whether in educational settings or corporate environments, its capabilities are sure to elevate any presentation experience.