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Kramer Electronics VP-81 K 5.3 Connecting a PC or Controller to the RS-485 Port , 5.4 Controlling the VP-81K via the Ethernet Port

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12 VP-81K - Connecting the VP-81K

5.3 Connecting a PC or Controller to the RS-485 Port

You can operate the VP-81K via the RS-485 port from a distance of up to 1200m

(3900ft) using any device equipped with an RS-485 port (for example, a PC). For

successful communication, you must set the RS-485 machine number and bus

termination.

To connect a device with a RS-485 port to the VP-81K:

• Connect the A (+) pin on the RS-485 port of the PC to the A (+) pin on the

RS-485 port on the rear panel of the VP-81K

• Connect the B (–) pin on the RS-485 port of the PC to the B (–) pin on the

RS-485 port on the rear panel of the VP-81K

• Connect the G pin on the RS-485 port of the PC to the G pin on the RS-485

port on the rear panel of the VP-81K

5.4 Controlling the VP-81K via the Ethernet Port

You can connect the VP-81K via the Ethernet in the following ways:

• For direct connection to the PC, use a crossover cable (see Section 5.4.1)

• For connection via a network hub or network router, use a straight-through

cable (see Section 5.4.2)

5.4.1 Connecting the Ethernet Port Directly to a PC (Crossover

Cable)

You can connect the Ethernet port of the VP-81K to the Ethernet port on your PC,

via a crossover cable with RJ-45 connectors.

This type of connection is recommended for identifying the VP-81K

with the factory configured default IP address

After connecting the Ethernet port, configure your PC as follows:

1. Right-click the My Network Places icon on your desktop.

2. Select Properties.

Contents

Main USER MANUAL Page Page 1 Introduction 2 Getting Started 2.1 Achieving the Best Performance 3 Overview 3.1 DDC Support 3.2 Defining EDID 3.3 Defining the VP-81K 8x1 UXGA/Audio Switcher Page 6 VP-81K Overview Figure 2: VP-81K 8x1 UXGA/Audio Switcher Rear Panel 3.4 Using the IR Transmitter 4 Installing in a Rack ! CAUTION! This section provides instructions for rack mounting the unit. Before Installing in a Rack How to Rack Mount 5 Connecting the VP-81K 5.1 Connecting the Balanced/Unbalanced Stereo Audio Output 5.2 Controlling via RS-232 to PC PC 5.3 Connecting a PC or Controller to the RS-485 Port 5.4 Controlling the VP-81K via the Ethernet Port 5.4.1 Connecting the Ethernet Port Directly to a PC (Crossover Cable) Page 5.4.2 Connecting via a Straight-Through Cable 5.4.3 Configuring the Ethernet Port 5.4.4 Controlling via the Embedded Web Pages Page Page 5.5 DIP-Switch Settings (1 2 3) 5.5.1 Setting the MACHINE # 5.6 Cascading Machines Page 6 Operating Your VP-81K 8x1 UXGA/Audio Switcher 6.1 Using the Front Panel Input Selector Buttons 6.2 Using the Regular or Automatic Switching Mode 6.2.1 The Regular Switching Mode 6.2.2 The Automatic Switching Mode 6.3 Using the Audio-Follow-Video/Breakaway Modes 6.3.1 Operating in Breakaway Mode 6.3.2 Toggling between Video and Audio Control in Breakaway Mode 6.3.3 Operating in the Audio-Follow-Video Mode 6.4 Setting the Audio Gain 7 Technical Specifications 8 Communication Parameters The following table lists the communication parameters as used in Kramer Electronics products. 9 Table of ASCII Codes for Serial Communication (Protocol 3000) 10 Table of Hex Codes for Serial Communication (Protocol 2000) The following table lists the hex codes that increase or decrease audio input gain. The following table lists the hex codes that increase or decrease the audio output gain. Page 11 Kramer Protocol 11.1 Switching Protocols 11.1.1 Switching Protocols via the Front Panel Buttons 11.1.2 Switching Protocols via Protocol Commands 11.2 Kramer Protocol 3000 30 VP-81K - Kramer Protocol 11.2.2 Command Part Details Help Commands Command Syntax Response Protocol Handshaking #CR ~OKCRLF Page Page Page Page 36 VP-81K - Kramer Protocol 11.3 Kramer Protocol 2000 Table 1: Protocol Definitions MSB LSB 1st byte Destination Instruction 0 D N5 N4 N3 N2 N1 N0 7 6 5 4 3 2 1 0 2d byte INPUT 1 I6 I5 I4 I3 I2 I1 I0 7 6 5 4 3 2 1 0 VP-81K - Kramer Protocol 37 38 VP-81K - Kramer Protocol VP-81K - Kramer Protocol 39 We warrant this product free from defects in mater ial and workmanship under the following terms. !