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18 

VP-23C - Kramer Protocol 2000 

 

INSTRUCTION 

DEFINITION FOR SPECIFIC INSTRUCTION 

NOTE 

DESCRIPTION 

INPUT 

OUTPUT 

 

0 RESET 

MACHINE 

1 SWITCH 

GROUPS 

1-2 

1-3* 

  

1-4 

4* 

 

 

 

Set equal to video and audio inputs 

to be switched for the relative group 

Set equal to group to which 

output is to be switched 

 

SWITCH AUDIO OUTPUTS TO 

MASTER AUDIO OUT 

1-4* Set equal to audio output to be 

switched to Master Audio out 

1 2 

REQUEST GROUP STATUS 

1-4 Set equal to the group of 

which status is required 

REQUEST STATUS OF 

MASTER AUDIO OUTPUT 

0 1 3 

11 REQUEST 

BREAKAWAY 

SETTING 

0 0 3 

16 

ERROR 

Don’t care 

0 – Invalid instruction 
1 – Out of range 

18 RESET 

MACHINE 

22 

SET AUDIO PARAMETER 

Parameter  

Value 

Parameter  
 

Value: 

2, 7, 8, 9, 

 

 

Audio gain: 

1 – Audio Master  
2 –Microphone 

Audio gain: 

0-127 

 

 

 

Mix microphone:  0 

Mix microphone: 0 – mix OFF 

1 – Mix ON 

 

24 INCREASE/DECREASE 

AUDIO PARAMETER 

1 – audio master 
2 – microphone  

0 - increase output 
1 - decrease output 

25 REQUEST 

AUDIO 

PARAMETER 

Equal to input / output number 

whose parameter is requested 

1 – audio master 
2 – microphone 

0 9 

30 

LOCK FRONT PANEL 

0 – Panel unlocked 
1 – Panel locked 

0 2 

31 REQUEST 

WHETHER 

PANEL 

IS LOCKED 

0 0 3 

42 AUDIO 

PARAMETER 

SETTINGS FOR 
INSTRUCTIONS 22, 25 

0 - Gain 
4 - Mix mode 

57 

SET AUTO SAVE 

1 – Autosave 
2 – No save 

 5 

61 

IDENTIFY MACHINE 

1 or 2 – Machine name 
3 or 4 – Program version 

0 – request first 4 digits 
1 – request first suffix 
10 – request first prefix 

62 

DEFINE MACHINE 

1 – Number of inputs 
2 – Number of outputs 

1 – For video 
2 – For audio 

 
* 1 – for CV group, 2 – for SV group, 3 – for Comp video group, 4 – for VGA group 
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. For example, if: 
0000 0001 

Instruction “Switch Groups”  

1000 0010 

Input #2 

1000 0001 

in composite video group 

1000 0001 

Machine #1 (master) 

Was sent from the PC, then the switcher (machine #1) will switch input 2 in composite video group to its output. If the 
user switched input 4 in the VGA group via the front panel keypad, then the switcher will send: 
0100 0001 
1000 0100 
1000 0100 
1000 0001 to the PC. 
When the PC sends instruction #1 or #2 to the switcher, then, if the instruction is valid, the switcher replies by sending 
the same four bytes to the PC that were sent (except for the first byte, where the DESTINATION bit is set high). 
 
 
 
 
 
 
 

Summary of Contents for VP-23C

Page 1: ...KRAMER ELECTRONICS LTD USER MANUAL MODEL VP 23C Presentation Switcher P N 2900 000202 Rev 3...

Page 2: ......

Page 3: ...tation Switcher 12 6 1 Operating your Switcher 12 7 Technical Specifications 14 8 Default Communication Parameters 15 9 Hex Tables 16 9 1 Audio Gain Control Hex Tables 16 10 Kramer Protocol 2000 17 Fi...

Page 4: ...in 11 groups that are clearly defined by function GROUP 1 Distribution Amplifiers GROUP 2 Switchers and Matrix Switchers GROUP 3 Control Systems GROUP 4 Format Standards Converters GROUP 5 Range Exten...

Page 5: ...com to check for up to date user manuals application programs and to check if firmware upgrades are available where appropriate 2 1 Achieving the Best Performance To achieve the best performance Use...

Page 6: ...master audio output which can select a signal from any of the 10 audio inputs In addition the VP 23C features 10 selector buttons and front panel control buttons for the master audio output level and...

Page 7: ...4 VP 23C Overview Figure 1 VP 23C Presentation Switcher...

Page 8: ...N 2 15 YC OUT 4 pin Connector Connect to the s Video acceptor 16 CV OUT RCA Connector Connect to the composite video acceptor 17 COMP UXGA IN 15 pin HD Connectors Connect to the component video or UXG...

Page 9: ...resentation Switcher Underside View Feature Function 1 NORMAL FLASH PROGRAM Switch Select between NORMAL for normal operation the factory default and FLASH PROGRAM to upgrade to the latest Kramer firm...

Page 10: ...for information For example for fuse replacement see the value printed on the product label The machine is earthed grounded in a reliable way and is connected only to an electricity socket with ground...

Page 11: ...One composite video source for example composite video player 1 to the CV IN 1 RCA connector One composite video source for example a composite video player 2 to the CV IN 2 RCA connector One compone...

Page 12: ...ojector 3 Connect the appropriate unbalanced stereo audio sources not shown in Figure 3 4 Connect the MASTER AUDIO OUT RCA connectors to an amplifier with speakers 5 Connect a dynamic or a condenser m...

Page 13: ...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 I 4 N I 1...

Page 14: ...em 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...

Page 15: ...group and choose not to select a button from it You can switch One of the two composite video VIDEO CV inputs to the composite video output You cannot select more than one button in a section One of...

Page 16: ...the audio output The last selected button is illuminated in purple to indicate the source of the outputted audio signal When setting the master audio gain to its minimum the MUTE button illuminates W...

Page 17: ...eo UXGA on an 15 pin HD connector 1 VGA UXGA on an 15 pin HD connector 1 unbalanced stereo master audio channel 4dBm 50 on RCA connectors MAX OUTPUT LEVEL VIDEO 2 1Vpp AUDIO 27Vpp BANDWIDTH 3dB VIDEO...

Page 18: ...ion Parameters RS 232 Protocol 2000 Baud Rate 9600 Data Bits 8 Stop Bits 1 Parity None Command Format HEX Example Output 1 to Input 1 0x01 0x81 0x81 0x81 Ethernet IP Address 192 168 1 39 TCP Port Numb...

Page 19: ...84 84 81 Master Audio Selector Composite Video Group 02 81 81 81 s Video Group 02 82 81 81 Component Video Group 02 83 81 81 VGA UXGA Group 02 84 81 81 Microphone 02 85 81 81 9 1 Audio Gain Control H...

Page 20: ...lue to be set for N5 N0 2nd BYTE Bit 7 Defined as 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 i...

Page 21: ...Gain 4 Mix mode 9 57 SET AUTO SAVE 1 Autosave 2 No save 5 61 IDENTIFY MACHINE 1 or 2 Machine name 3 or 4 Program version 0 request first 4 digits 1 request first suffix 10 request first prefix 6 62 D...

Page 22: ...entify the switchers in a system If the INPUT is set as 1 or 2 the machine will send its name The reply is the decimal value of the INPUT and the OUTPUT For example the reply to the request to send th...

Page 23: ...ature ii Product modification orfailure to follow instructions supplied withtheproduct iii Repair orattemptedrepairby anyone not authorized by Kramer iv Any shipment of theproduct claims must bepresen...

Page 24: ...ributors visit our Web site where updates to this user manual may be found We welcome your questions comments and feedback Web site www kramerelectronics com E mail info kramerel com SAFETY WARNING Di...

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