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Kramer Protocol 

 

11 

11 

Table 5: Instruction Codes for Protocol 2000 

Note: All values in the table are decimal, unless otherwise stated. 

INSTRUCTION 

DEFINITION FOR SPECIFIC INSTRUCTION 

NOTE 

DESCRIPTION 

INPUT 

OUTPUT 

SWITCH VIDEO 

Set equal to video input 

which is to be switched 

(0 = disconnect) 

Set equal to video output which is 

to be switched  

(0 = to all the outputs) 

2,15 

NOTES on the above table: 

 

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. For example, if the 

HEX code 

 

NOTE 15

 – When the OVR bit (4

th

 byte) is set, then the “video” commands have universal meaning. For example, instruction 

1 (SWITCH VIDEO) will cause all units (including audio, data, etc.) to switch. Similarly, if a machine is in “FOLLOW” 

mode, it will perform any “video” instruction. 

9.3 Protocol 3000 Syntax 

The Kramer Protocol 3000 lets you control the 

VS-21HDCP-IR

 from any 

standard terminal software (for example, the Windows

®

 HyperTerminal 

Application). 
This RS-232/RS-485 communications protocol uses a data rate of 115200 

baud, with no parity, 8 data bits, and 1 stop bit. 

9.3.1 

Host Message Format 

Start 

Address (optional) 

Body 

Delimiter 

Destination_id

Message 

CR 

9.3.1.1  Simple Command 

Command string with only one command without addressing: 

Start 

Body 

Delimiter 

Command

 

SP

 Parameter_1,Parameter_2,…

 

CR 

9.3.1.2  Command String  

Formal syntax with commands concatenation and addressing: 

Start 

Address 

Body 

Delimiter 

Destination_id

Command_1

 Parameter1_1,Parameter1_2,…|

 

Command_2

 Parameter2_1,Parameter2_2,…|

 

Command_3

 Parameter3_1,Parameter3_2,…

|…

 

CR 

9.3.2 

Device Message Format

 

Start 

Address (optional) 

Body 

delimiter 

Sender_id

Message 

CR

 

LF 

 

 

 

 

Summary of Contents for VS-21HDCP-IR

Page 1: ...Kramer Electronics Ltd USER MANUAL Model VS 21HDCP IR 2x1 DVI Switcher...

Page 2: ...ng EDID 8 7 Technical Specifications 8 8 Default Communication Parameters 9 9 Kramer Protocol 9 9 1 Toggling Between Protocols 9 9 2 Kramer Protocol 2000 10 9 3 Protocol 3000 Syntax 11 9 3 1 Host Mess...

Page 3: ...IR 2x1 DVI Switcher 6 Figure 3 Connecting the REMOTE Input Select Connector 7 Tables Table 1 VS 21HDCP IR 2x1 DVI Switcher Features 5 Table 2 Technical Specifications of the VS 21HDCP IR 2x1 DVI Switc...

Page 4: ...g the required battery and a separate user manual2 This user manual 2 Bracket installation kit 2 Getting Started We recommend that you Unpack the equipment carefully and save the original box and pack...

Page 5: ...KRAMER SIMPLE CREATIVE TECHNOLOGY Getting Started 2...

Page 6: ...gital video and audio signals transmitted over DVI or HDMI connections between two HDCP enabled devices to eliminate the reproduction of copyrighted material To protect copyright holders such as movie...

Page 7: ...oiding interference deterioration in signal quality due to poor matching and elevated noise levels often associated with low quality cables Avoiding interference from neighboring electrical appliances...

Page 8: ...ect the VS 21HDCP IR 2x1 DVI Switcher as illustrated in the example in Figure 2 do the following2 1 Connect up to two DVI sources to the INPUT connectors as follows INPUT 1 connector to DVI source 1 f...

Page 9: ...ct to the VS 21HDCP IR via an RS 232 connection using for example a PC Note that a null modem adapter connection is not required To connect to the VS 21HDCP IR via RS 232 Connect the RS 232 9 pin D su...

Page 10: ...e REMOTE Terminal Block Connector The contact closure remote control pins operate in a similar way to the input SELECT button Using the contact closure remote control lets you select an input by remot...

Page 11: ...put 1 and input 2 simultaneously IN 1 IN 2 blink Default value to Input 1 and input 2 simultaneously 7 Technical Specifications Table 2 includes the technical specifications Table 2 Technical Specific...

Page 12: ...n release 9 Kramer Protocol By default the VS 21HDCP IR is set to protocol2 2000 see section 9 2 but is also compatible with Kramer s Protocol 3000 see section 9 3 Section 9 1 describes how to switch...

Page 13: ...s 1 I6 I0 INPUT When switching ie instruction codes 1 and 2 the INPUT 7 bits is set as the input number which is to be switched Similarly if switching is done via the machine s front panel then these...

Page 14: ...cause all units including audio data etc to switch Similarly if a machine is in FOLLOW mode it will perform any video instruction 9 3 Protocol 3000 Syntax The Kramer Protocol 3000 lets you control th...

Page 15: ...ommand entered as part of a message string begins with a message starting character and ends with a message closing character Note A string can contain more than one command Commands are separated by...

Page 16: ...can be chained in the same string Each command is delimited by a pipe character When chaining commands enter the message starting character and the message closing character only once at the beginnin...

Page 17: ...ULT VID V Switch video only VID IN OUT IN OUT Short form V IN OUT IN OUT VID IN OUT IN OUT RESULT VID V Query Switch video only VID OUT Short form V OUT VID VID IN OUT VID IN 1 IN 2 9 1 Result and Err...

Page 18: ...fnature ii Product modification orfailureto followinstructions supplied with theproduct iii Repairorattemptedrepairby anyonenot authorized byKramer iv Anyshipment oftheproduct claims must bepresentedt...

Page 19: ...est 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 fee...

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