Kramer Electronics VP-23RC user manual Communication Protocol, Protocol Definitions

Page 53

Communication Protocol

13 Communication Protocol

This protocol, which enables RS-232 communication between the VP-23RCand the PC, uses 4 bytes of information, and data is at 9600 baud, no parity, 8 data bits and 1 stop bit.

Table 18: Protocol Definitions

 

MSB

 

 

 

 

 

 

 

 

 

 

LSB

 

 

DESTINATION

 

 

 

INSTRUCTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

D

 

N5

N4

N3

 

N2

 

N1

 

N0

7

6

 

5

4

3

 

2

 

1

 

0

1st byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

0

 

0

0

0

 

I2

 

I1

 

I0

7

6

 

5

4

3

 

2

 

1

 

0

2nd byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT

 

 

 

 

 

 

 

 

 

 

 

1

0

 

0

0

0

 

0

 

O1

 

O0

7

6

 

5

4

3

 

2

 

1

 

0

3rd byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MACHINE NUMBER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

0

 

0

0

M3

 

M2

 

M1

 

M0

7

6

 

5

4

3

 

2

 

1

 

0

4th byte

 

 

 

 

 

 

 

 

 

 

 

1st BYTE:

 

Bit 7 ± Defined as 0.

 

 

 

 

 

 

 

 

 

 

 

D ± ª DESTINATION BITº .

 

 

 

 

 

 

 

 

 

 

This bit is always low, when sending from the PC to the switchers, and high for information sent

 

 

 

to the PC.

 

 

 

 

 

 

 

 

 

 

 

N5…N0 ± ª INSTRUCTIONº .

 

 

 

 

 

 

 

These 6 bits define the function that is to be performed by the switcher(s). Similarly, if a function is performed via the machine’s keyboard, then these bits are set with the INSTRUCTION NO, which was performed. The instruction codes are defined according to the table below (INSTRUCTION NO. is the value to be set for N5…N0).

2nd BYTE:

Bit 7 ± Defined as 1.

 

Bits 3 ± 6 - Defined as 0.

 

I2… I0 ± ª INPUTº .

For disconnect, set as 0. For other operations, these bits are defined according to Table 19.

3rd BYTE:

Bit 7 ± defined as 1.

 

Bits 2-6 defined as 0.

 

O1, O0 ± ª OUTPUTº

For operations, these bits are defined according to Table 19.

4th BYTE:Bit 7 ± Defined as 1. Bits 3-6 Defined as 0.

M3… M0 ± ª MACHINE NUMBERº .

MACHINE NUMBER = (DIPSWITCH CODE) + 1.

49

Image 53
Contents Model Contents Figures Atmel Flip Window TablesQuick Start IntroductionGetting Started Getting Started About the VP-23RC OverviewUnderstanding the Media / Room Controller Section Controlling the VP-23RC VP-23RC Configuration Example Connecting the VP-23RC Rear PanelTerm Definition Recommendations for Achieving the Best PerformanceVP-23RC Front Panel Your Presentation Switcher / ControllerVP-23RC Presentation Switcher / Controller Front View VP-23RC Rear Panel FeatureVP-23RC Presentation Switcher / Controller Rear View RS-232 Feature FunctionVP-23RC Underside Panel Reset VS HSBefore Installing on a Rack Installing the VP-23RC on a RackHow to Rack Mount Some models, the front panel may feature built-in rack earsConnecting the VP-23RC Presentation Switcher Section If required, connect a PC to the RS-232 port see Connecting the Balanced/Unbalanced Stereo Audio Input/Output Wire Color Wiring the CAT 5 Line OUT RJ-45 ConnectorShielded Twisted Pair STP / Unshielded Twisted Pair UTP CAT 5 PinoutConnecting to the Media / Room Controller Equipment Connecting the VP-23RC Media/Room Controller Section Description Setting the Media / Room Controller Program DipswitchesProgram Dipswitch Settings Controlling the VP-23RC via a PC Controlling the VP-23RCRS-232 Rear Panel Port Location For… Connecting an RS-232 Port to a PCFunction Description Dipswitch SettingsControlling via the Ethernet Control Configuration via RS-232 and RS-485Select Properties Internet Protocol TCP/IP Properties Window Front Panel Buttons Operating Your VP-23RCOperating Your VP-23RC Internet Example of a Typical Setup in the Lecture Auditorium Button Macro Sequence Commands ConfigurationShows an operating example Independent Switchers Mode Presentation Switcher Section OperationMaster Audio Mode Switching in the Master Audio Mode Presentation Switcher Selector Buttons Macro Sequence Flash Memory Upgrade for the Presentation Switcher Section Flash Memory UpgradeUpgrading the Firmware Click OK and select ª Load Hexº from the File menu Loading the Hex Atmel -Flip Window Connected Flash Memory Upgrade for the Media / Room Controller Section KFR-Programmer Window Installing the Web Applet2Troubleshooting Firmware Upgrade Issues Includes the technical specifications1 Technical SpecificationsAudio Gain Control Hex Tables Hex TableIncrease or Decrease the Audio Output Gain by One Step Set the Audio Output Gain Control for the Master AudioMicrophone Master Out Video Increase DecreaseProtocol Definitions Communication ProtocolInstruction Codes Reset Machine Switch Groups0111 1000 1001 +23 Limited Warranty 2900-000155 REV