Kramer Electronics, Ltd.
Contents Contents 1 2 2.1 3 4 5 6 6.1 6.2 6.3 Introduction Getting Started Quick Start Overview Your VS-81SP 8 x 1 Loudspeaker Switcher Installing the VS-81SP in a Rack Connecting the VS-81SP 8 x 1 Loudspeaker Switcher Connecting via RS-232 Connecting via RS-485 DIP-switch Settings 1 1 2 3 3 6 7 9 9 10 6.3.1 6.3.2 Setting the MACHINE # Setting the MACHINE ADDRESS # 11 13 6.4 7 7.1 7.2 7.3 8 9 9.1 9.2 9.
Contents Figures Figure 1: VS-81SP 8 x 1 Loudspeaker Switcher Functions Figure 2: Connecting the VS-81SP – 1 Amplifier to 8 Speaker Pairs Figure 3: Connecting the VS-81SP – 8 Amplifiers to 1 Speaker Pair Figure 4: Connecting a PC Without Using a Null-modem Adapter Figure 5: Controlling via RS-485 Figure 6: SETUP DIP-switches (Factory Default for Stand-Alone MACHINE # 1) Figure 7: DIP-switch Settings on 4 VP-81SP Units Figure 8: Cascading 3 VP-81SP Units Figure 9: Addressing 3 Cascaded VP-81SP Units Figure
Introduction 1 Introduction Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of unique, creative, and affordable solutions to the vast range of problems that confront the video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we have redesigned and upgraded most of our line, making the best even better! Our 1,000-plus different models now appear in 11 groups 1 that are clearly defined by function.
Getting Started 2.1 Quick Start This quick start chart summarizes the basic setup and operation steps.
Overview 3 Overview The VS-81SP is a bi-directional switcher for stereo audio speaker signals on terminal block connectors. It can switch any one of eight pairs of input signals to one output pair or one input pair to any one of eight output pairs.
Your VS-81SP 8 x 1 Loudspeaker Switcher Figure 1: VS-81SP 8 x 1 Loudspeaker Switcher Functions 4 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VS-81SP 8 x 1 Loudspeaker Switcher Table 1: VS-81SP 8 x 1 Loudspeaker Switcher Functions # Feature 1 IR Receiver 2 3 4 POWER Switch IN/OUT SELECTOR Buttons OUT/IN Terminal Block Connectors 5 6 RS-232 IN 9-pin D-sub (F) Port RS-232 OUT 9-pin D-sub (M) Port 7 SETUP DIP-switches 8 9 REMOTE Terminal Block Connectors RS-485 Terminal Block Port 10 REMOTE IR Opening 11 Power Connector with Fuse Function The red LED illuminates when receiving signals from the infrared remote control transmitter
Installing the VS-81SP in a Rack 5 Installing the VS-81SP in a Rack This section describes how to install the VS-81SP in a rack.
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher 6 Connecting the VS-81SP 8 x 1 Loudspeaker Switcher To connect the VS-81SP, as shown in Figure 2, do the following 1: 1. Connect the input source (for example, the speaker outputs from a power amplifier) to the OUT/IN terminal block connectors. 2. Connect the IN/OUT connectors to the speaker pairs (up to eight). 3. As an option you can connect a PC and/or controller to the: • RS-232 port (see section 6.1) • RS-485 port (see section 6.2) 4.
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher Figure 2: Connecting the VS-81SP – 1 Amplifier to 8 Speaker Pairs Figure 3: Connecting the VS-81SP – 8 Amplifiers to 1 Speaker Pair 8 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher 6.
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher 2. Set the SETUP DIP-switches on the VS-81SP units as follows (see section 6.3): • Set the first VS-81SP unit to MACHINE # 1 1 • Set the second VS-81SP unit to MACHINE # 21 and set DIP 12 to ON, terminating the RS-485 line 2 Figure 5: Controlling via RS-485 6.
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher Table 2: DIP-switch Definitions DIP 1-4 5-7 8 9-11 (marked 1-3 on second set) 12 (marked 4 on second set) Function: Set the MACHINE # (see section 6.3.1) MACHINE ADDRESS # in daisy chain connection (see section 6.3.2) Last cascaded device Firmware upgrade (see section 9) RS-485 termination (see section 6.2) 6.3.1 Setting the MACHINE # To control a unit via RS-232 or RS-485, each unit has to be identified by its unique MACHINE #.
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher Figure 7: DIP-switch Settings on 4 VP-81SP Units 12 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher 6.3.2 Setting the MACHINE ADDRESS # For certain applications, you may need more than 8 outputs 1. Cascading the outputs enables you to expand the number of outputs by looping up to seven units to form a combined speaker switcher with up to 50 speaker pair outputs.
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher Figure 8: Cascading 3 VP-81SP Units Figure 9: Addressing 3 Cascaded VP-81SP Units 14 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher 6.4 Connecting the REMOTE Terminal Block 1 Connector Connect remote contact-closure switches to the REMOTE terminal block connector (item 8 on the back panel) as Figure 10 describes. A remote unit can consist of a mechanical switcher 2 with a common wire for ground 3. 2 1 8 3 ...... ......
Connecting the VS-81SP 8 x 1 Loudspeaker Switcher Figure 11: Connecting a Remote Unit to a Cascaded Set of Three VP-81SP Units 16 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Operating the VS-81SP 8 x 1 Loudspeaker Switcher 7 Operating the VS-81SP 8 x 1 Loudspeaker Switcher You can operate your VS-81SP using: • The front panel buttons • RS-232/RS-485 serial commands transmitted by a touch screen system, PC, or other serial controller • The infrared remote control transmitter 7.1 Using the Front Panel Buttons To choose an input to switch to the output, press the appropriate IN/OUT SELECTOR button. 7.
Technical Specifications 8 Technical Specifications The VS-81SP technical specifications are shown in Table 5: Table 5: VS-81SP Technical Specifications INPUT/OUTPUT: POWER SOURCE: DIMENSIONS: WEIGHT: ACCESSORIES: OPTIONS: 9 1 For RL=4Ω, PSW =256W; for RL=8Ω, PSW=512W 100–240V AC, 3VA 19 " x 7 " x 1U W, D, H 2.0kg (4.
Upgrading the VS-81SP Firmware 9.2 Connecting a PC to the RS-232 Port To connect a PC to the RS-232 port of the VS-81SP: 1. Power the VS-81SP OFF. 2. Connect a serial cable from the VS-81SP RS-232 9-pin D-sub rear panel port to a PC as explained in section 6.1. 3. Do the following according to the sequence below: • Turn the POWER switch ON • Set DIP 9 ON • Set DIP 10 ON • Set DIP 12 ON • Set DIP 11 ON • After a few seconds, set DIP 11 OFF The front panel buttons may illuminate erratically.
Upgrading the VS-81SP Firmware Figure 12: Splash Screen 2.
Upgrading the VS-81SP Firmware 3. Open the Device Selection window by: • Pressing the keyboard shortcut key F2, or • Choosing the Select command from the Device menu, or • Pressing the integrated circuit icon in the upper right corner of the window). The Device Selection window appears: Figure 14: Device Selection Window 4.
Upgrading the VS-81SP Firmware 5. Click OK. 6. From the File menu, select Load Hex. Figure 16: Loading the Hex 7. The Open File window opens. Select the correct HEX file that contains the updated version of the VS-81SP firmware (for example, VP81SP _V1p2.hex) and click Open. 8. Open the RS-232 window by pressing the keyboard shortcut key F3 (or select the Communication / RS232 command from the Settings menu, or press the keys: Alt-SCR). The RS232 window appears. 9.
Upgrading the VS-81SP Firmware 10. Click Connect. In the Operations Flow column of the Atmel – Flip window, the Run button is active, and the name of the chip appears as the name of the third column: AT89C51RD2. Verify that in the Buffer Information column, the “HEX File: VP81SP.hex” appears. Figure 18: Atmel – Flip Window (Connected) 11. Click Run. As each stage of the operation completes, the check-box for that stage changes to green1.
Upgrading the VS-81SP Firmware Figure 19: Atmel – Flip Window (Operation Completed) 12. Close the Atmel – Flip window. 13. Turn the POWER switch on the VS-81SP OFF. 14. Disconnect the RS-232 9-pin D-sub rear panel port on the VS-81SP unit from the null-modem adapter. 15. Set DIP 9 OFF. 16. Set DIP 10 OFF. 17. Set DIP 12 OFF. 18. Turn the POWER switch on the VS-81SP ON. Upon initialization, the VS-81SP works with the new firmware version.
Hex Table 10 Hex Table Table 6 lists the Hex values (which the protocol in section 11 describes in more detail) for the VS-81SP: Table 6: VS-81SP Hex Table 11 Input# IN 1 IN 2 IN 3 IN 4 OUT 01 81 81 81 01 82 81 81 01 83 81 81 01 84 81 81 IN 5 01 85 81 81 IN 6 01 86 81 81 IN 7 01 87 81 81 IN 8 01 88 81 81 Kramer Protocol 2000 The VS-81SP is compatible with Kramer’s Protocol 2000, version 0.50. This RS-232/RS-485 communication protocol uses four bytes of information as defined below.
Kramer Protocol 2000 1st BYTE: Bit 7 – Defined as 0. D – “DESTINATION”: 0 - for sending information to the switchers (from the PC); 1 - for sending to the PC (from the switcher). N5…N0 – “INSTRUCTION” The function to be performed by the switcher(s) is defined by the INSTRUCTION (6 bits). Also, if a function is performed via the machine’s keyboard, then these bits are set with the INSTRUCTION NO. that was performed. The instruction codes are defined according to the table below (INSTRUCTION NO.
Kramer Protocol 2000 NOTES on the above table: NOTE 1 – When the master switcher is reset, (e.g. when it is turned on), the reset code is sent to the PC. If this code is sent to the switchers, it will reset according to the present power-down settings. NOTE 2 – These are bi-directional definitions. That is, if the switcher receives the code, it will perform the instruction; and if the instruction is performed (due to a keystroke operation on the front panel), then these codes are sent.
LIMITED WARRANTY Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the following terms. HOW LONG IS THE WARRANTY Labor and parts are warranted for seven years from the date of the first customer purchase. WHO IS PROTECTED? Only the first purchase customer may enforce this warranty. WHAT IS COVERED AND WHAT IS NOT COVERED Except as below, this warranty covers all defects in material or workmanship in this product.
For the latest information on our products and a list of Kramer distributors, visit our Web site: www.kramerelectronics.com where updates to this user manual may be found. We welcome your questions, comments and feedback. Safety Warning: Disconnect the unit from the power supply before opening/servicing. Caution Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
