JBL Performance AV1 User manual

Serial Protocol Definitions
AV1
Software Version 1.00/1.10
Protocol Version:
Major Rev 1
Minor Rev 6
Performance™

JBL Performance Series RS-232 Serial Protocol Definitions
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“JBL” and the JBL logo are registered trademarks of Harman International Industries. U.S. patent
numbers and other worldwide patents issued and pending.
“Lexicon” and the Lexicon logo are registered trademarks of Harman International Industries. U.S. patent
numbers and other worldwide patents issued and pending.
Windows® is a registered trademark of Microsoft Corporation.
© 2005 Harman International Industries, Incorporated. All rights reserved.
This document should not be construed as a commitment on the part of Harman International Industries,
Inc. The information it contains is subject to change without notice. Harman International Industries, Inc.
assumes no responsibility for errors that may appear within this document.
JBL
8500 Balboa Blvd
Northridge California

JBL Performance Series RS-232 Serial Protocol Definitions
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1 Documents ....................................................................................................................................... 7
1.1 Change List ............................................................................................................................... 7
2 Definitions ....................................................................................................................................... 7
3 Abbreviations................................................................................................................................... 7
4 General Description ......................................................................................................................... 7
4.1 Physical Layer........................................................................................................................... 8
4.2 Serial Port Driver ...................................................................................................................... 8
4.3 Errors ........................................................................................................................................ 8
4.4 AV1 Receive Buffer ................................................................................................................. 9
4.5 AV1 Hardware Verification...................................................................................................... 9
5 Data Link Layer ............................................................................................................................... 9
5.1 Errors ...................................................................................................................................... 10
6 Application Layer .......................................................................................................................... 10
6.1 AV1 Asynchronous Notification Packets ............................................................................... 10
6.1.1 Wakeup Notification........................................................................................................ 10
6.1.1.1 Notification Packet Description.................................................................................... 10
6.1.1.2 Host Response............................................................................................................... 11
6.1.2 Sleep Notification ............................................................................................................ 11
6.1.2.1 Notification Packet Description........................................................................... 11
6.1.3 Front Panel Display ......................................................................................................... 11
6.1.3.1 Notification Packet Description........................................................................... 11
6.1.3.2 Data Description.................................................................................................... 11
6.1.3.3 HOST Response................................................................................................... 12
6.1.4 AV1 Parameter Notification by Id................................................................................... 12
6.1.4.1 Command Packet Description ............................................................................ 12
6.1.4.2 Data Description.................................................................................................... 12
6.1.4.3 HOST Response................................................................................................... 12
6.1.4.4 Defaults .................................................................................................................. 12
6.2 Acknowledgment Packets....................................................................................................... 13
6.2.1 Acknowledge ................................................................................................................... 13
6.2.1.1 Packet Description................................................................................................ 13
6.2.1.2 Data Description.................................................................................................... 13
6.2.2 No Acknowledge ............................................................................................................. 13
6.2.2.1 Packet Description................................................................................................ 13
6.2.2.2 Data Description.................................................................................................... 13
6.3 Host Initiated Command Packets............................................................................................ 13
6.3.1 Reset Unit ........................................................................................................................ 14
6.3.1.1 Command Packet Description ............................................................................ 14
6.3.1.2 AV1 Response ...................................................................................................... 14
6.3.2 Restore Defaults............................................................................................................... 14
6.3.2.1 Command Packet Description ............................................................................ 14
6.3.2.2 AV1 Response ...................................................................................................... 14
6.3.3 Get Custom Name............................................................................................................ 14
6.3.3.1 Command Packet Description ............................................................................ 14
6.3.3.2 Data Description.................................................................................................... 14
6.3.3.3 Custom Name Response Packet....................................................................... 15
6.3.3.4 Data Description.................................................................................................... 15

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6.3.4 Set Custom Name ............................................................................................................ 15
6.3.4.1 Packet Description................................................................................................ 16
6.3.4.2 Data Description.................................................................................................... 16
6.3.4.3 AV1 Response ...................................................................................................... 16
6.3.4.4 Data Validation:..................................................................................................... 16
6.3.5 Host Wakeup.................................................................................................................... 16
6.3.5.1 Command Packet Description ............................................................................ 16
6.3.5.2 Data Description.................................................................................................... 16
6.3.5.3 AV1 Response ...................................................................................................... 17
6.3.6 Host Sleep ........................................................................................................................ 17
6.3.6.1 Packet Description................................................................................................ 17
6.3.6.2 Data Description.................................................................................................... 17
6.3.7 Get Communication Configuration ................................................................................. 17
6.3.7.1 Command Packet Description ............................................................................ 17
6.3.7.2 Communication Configuration Response Packet............................................ 17
6.3.7.3 Data Description.................................................................................................... 17
6.3.8 Set Communication Configuration .................................................................................. 18
6.3.8.1 Command Packet Description ............................................................................ 18
6.3.8.2 Data Description.................................................................................................... 18
6.3.8.3 AV1 Response .......................................................................................................... 18
6.3.9 Set Mute........................................................................................................................... 18
6.3.9.1 Command Packet Description .................................................................................. 18
6.3.9.2 Data Description ....................................................................................................... 19
6.3.9.3 AV1 Response .......................................................................................................... 19
6.3.9.4 Data Validation ......................................................................................................... 19
6.3.10 Send Display String Command...................................................................................... 19
6.3.10.1 Packet Description .................................................................................................. 19
6.3.10.2 Data Description ..................................................................................................... 19
6.3.10.3 AV1 Response ........................................................................................................ 20
6.3.10.4 Data Validation:...................................................................................................... 20
6.3.11 AV1 Get Parameter Definition by Id............................................................................. 20
6.3.11.1 Command Packet Description ................................................................................ 20
6.3.11.2 Data Description ..................................................................................................... 20
6.3.11.3 Data Validation:...................................................................................................... 21
6.3.11.4 Parameter Definition Response Packet................................................................... 21
6.3.11.5 Data Description ..................................................................................................... 21
6.3.12 AV1 Set Parameter Value by Id .................................................................................... 22
6.3.12.1 Command Packet Description ................................................................................ 22
6.3.12.2 Data Description ..................................................................................................... 23
6.3.13 AV1 Set Parameter Value by Id, No Run...................................................................... 23
6.3.13.1 Command Packet Description ................................................................................ 23
6.3.13.2 Data Description ..................................................................................................... 24
6.3.14 AV1 Get Unit Configuration ..................................................................................... 24
6.3.14.1 Command Packet Description ................................................................................ 24
6.3.14.2 AV1 Unit Configuration Response Packet ............................................................. 24
6.3.14.3 Data Description ..................................................................................................... 25
6.3.15 AV1 Send IR Command ................................................................................................ 26
6.3.15.1 Command Packet Description ................................................................................ 26
6.3.15.2 Data Description ..................................................................................................... 27

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6.3.15.3 AV1 Response ........................................................................................................ 27
6.3.15.4 Data Validation ....................................................................................................... 27
6.3.16 AV1 Get Parameter Value by Id................................................................................ 27
6.3.16.1 Command Packet Description ................................................................................ 27
6.3.16.2 Data Description ..................................................................................................... 27
6.3.16.3 Data Validation ....................................................................................................... 27
6.3.16.4 AV1 Value String Response Packet ....................................................................... 27
6.3.16.5 Data Description ..................................................................................................... 28
6.3.17 AV1 Set Parameter Notification by Id........................................................................... 28
6.3.17.1 Command Packet Description ................................................................................ 28
6.3.17.2 Data Description ..................................................................................................... 28
6.3.17.3 Data Validation ....................................................................................................... 28
6.3.17.4 AV1 Response ........................................................................................................ 28
6.3.18 AV1 Parameter Get Value String by Id ......................................................................... 28
6.3.18.1 Command Packet Description ................................................................................ 29
6.3.18.2 Data Description ..................................................................................................... 29
6.3.18.3 Data Validation ....................................................................................................... 29
6.3.18.4 AV1 Value String Response Packet ....................................................................... 29
6.3.18.5 Data Description ..................................................................................................... 29
6.3.19 AV1 Clear All Parameter Notifications......................................................................... 29
6.3.19.1 Command Packet Description ................................................................................ 29
6.3.20 AV1 Get System Status ................................................................................................. 30
6.3.20.1 Command Packet Description ................................................................................ 30
6.3.20.2 System Status Response Packet.............................................................................. 30
6.3.20.3 Data Description ..................................................................................................... 30
6.3.21 AV1 Set System Volume............................................................................................... 31
6.3.21.1 Command Packet Description ................................................................................ 31
6.3.21.2 Data Description ..................................................................................................... 31
6.3.21.3 AV1 Response ........................................................................................................ 32
6.3.21.4 Data Validation ....................................................................................................... 32
6.3.22 AV1 Set Main Balance .................................................................................................. 32
6.3.22.1 Command Packet Description ................................................................................ 32
6.3.22.2 Data Description ..................................................................................................... 32
6.3.22.4 Data Validation ....................................................................................................... 32
6.3.23 AV1 Set Fader ............................................................................................................... 32
6.3.23.1 Packet Description .................................................................................................. 32
6.3.23.2 Data Description ..................................................................................................... 33
6.3.23.3 AV1 Response ........................................................................................................ 33
6.3.23.4 Data Validation ....................................................................................................... 33
6.3.24 AV1 Set Active Effect by Id.......................................................................................... 33
6.3.24.1 Command Packet Description ................................................................................ 33
6.3.24.2 Data Description ..................................................................................................... 33
6.3.24.3 AV1 Response ........................................................................................................ 33
6.3.24.4 Data Validation ....................................................................................................... 33
6.3.25 AV1 Get Input Name by Id........................................................................................ 33
6.3.25.1 Command Packet Description ................................................................................ 33
6.3.25.2 Data Description ..................................................................................................... 34
6.3.25.3 Data Validation ....................................................................................................... 34
6.3.25.4 Input Name Response Packet ................................................................................. 34

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6.3.25.5 Data Description ..................................................................................................... 34
6.3.26 AV1 Set Input Name by Id ........................................................................................ 34
6.3.26.1 Command Packet Description ................................................................................ 34
6.3.26.2 Data Description ..................................................................................................... 35
6.3.26.3 AV1 Response ........................................................................................................ 35
6.3.26.4 Data Validation ....................................................................................................... 35
Appendix A: Command Codes..................................................................................... 36
Appendix B: Error Codes .............................................................................................. 37
Appendix C: AV1 IR Codes .......................................................................................... 38
Appendix D: Protocol Constants.................................................................................. 40
Appendix E: AV1 Mode Ids........................................................................................... 41
Appendix F: AV1 Input Ids............................................................................................ 42
6.4 Box initializations ................................................................................................................... 42
6.4.1 AV1.................................................................................................................................. 42
6.4.2 HOST ............................................................................................................................... 42
6.5 Simple System Control & System Status ............................................................................... 42
6.6 Examples:................................................................................................................................ 42
6.6.1 AV1 Get Unit Configuration ........................................................................................... 43
6.6.2 Send AV1 IR Command Example................................................................................... 45

JBL Performance Series RS-232 Serial Protocol Definitions
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1 Documents
The following document should also be used with this document to understand how this protocol can be
used with an AV1.
070-16329 AV1 User Guide
1.1 Change List
No changes at this time.
2 Definitions
User Parameter: A user changeable variable that stores a specific value that describes an operating
condition for the AV1 system. HOST: The device initiating or receiving the serial communication packets
to/from the
AV1. AV1: The JBL product receiving or transmitting the serial communication packets to/from the HOST.
Nonvolatile RAM: The area of memory in a AV1 that stores users adjustable parameters. The Nonvolatile
RAM is battery backed, to maintain values during AV1 power down.
3 Abbreviations
SOP Start of Packet
EOP End of Packet
ACK Acknowledge
NAK No Acknowledge
FPD Front Panel Display
4 General Description
The intention of the AV1 serial port and protocol communication is for an external connected HOST to
control and obtain status from the AV1. The protocol has been designed to focus on two specific goals. The
first is HOST uploading and downloading of AV1 configuration, and system/effect setups. The second is
HOST control of basic user adjustable parameters. (i.e. input, volume, balance…)
The AV1 uses simple notification, command, response and acknowledgment packets to have
communication transactions with a given HOST. This protocol is designed for point-to-point communication
between a HOST and AV1. The AV1 Protocol is a 3 layered system. The AV1 serial protocol allows for the
AV1, or the HOST, to initiate a communication transaction. Most transactions are initiated by the HOST.
AV1 then responds to the HOST command with either a response or acknowledgment packet. There are a
few asynchronous notifications that AV1 initiates indicating system changes. Each transaction initiated must
JBL AV1

JBL Performance Series RS-232 Serial Protocol Definitions
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wait for a corresponding response before initiating the next transmission. The 3 protocol layers are Physical,
Data Link, and Application Layers.
4.1 Physical Layer
Note: The wiring requirements for a 9 pin to 9 pin serial connection are a male to female straight through
cable.
4.2 Serial Port Driver
AV1 serial port has been setup to operate as follows:
Operating Mode: Full Duplex
Baud rate: 19.2K baud
Data Size: 8 bits (1 byte)
Parity: Odd
Stop Bits: 1
Hardware Handshaking: None
4.3 Errors
AV1
COM1

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The AV1 will detect parity, framing, and data overrun errors. If any of the physical layer errors are detected,
the complete packet is corrupted and the AV1 will reset the transaction and begin to look for a start of
packet byte.
4.4 AV1 Receive Buffer
The AV1 has an internal receive buffer. The buffer is 256 Bytes and will transmit a NAK packet with an error
code of DC_ERR_BUFFER_FULL to the HOST if the buffer is full. If the buffer is full, all data transmitted to
the AV1 will be ignored. Therefore, making the currently transmitted packet, if partially
transmitted invalid.
4.5 AV1 Hardware Verification
This test verifies the RS232 ports are working by comparing the transmitted signal (at pin 2) to the received
signal (at pin 3). The AV1 transmits a known test signal just following a power up. The AV1 monitors the
serial port receivers while transmitting the test signal. If the signals are the same, the test passes. In order to
test this circuit, RS232 Wraparound plug(s) are needed and must be installed at the female D9 connector(s)
on the rear panel of the AV1 labeled “RS232”. The wraparound plug shorts pins 2 to 3, allowing for the AV1
to receive the signal it is transmitting. Once installed, power cycle the AV1 and verify the following message
is displayed on the FPD:
SERIAL PORT A PASSED
SERIAL PORT B PASSED
This message is displayed for about 2 seconds before entering normal operating mode. If no messages are
displayed, then both wrap tests failed.
5 Data Link Layer
The data link layer is used to define a transmission packet. The layer appends a header and tail that
encloses the transmitted application packet data. The data link header will contain the start of packet byte
and count of bytes to follow. The data link tail will contain the end of packet byte.

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Data Link Header:
Byte Number Description Value
First Byte (SOP) 0xF1 (0) Start of Packet
Byte (1) DLL Data Count nn
Application Header:
Byte (2) Command nn
Byte (3) APP Data Count(number of
application data bytes to
Follow)
nn
Application Data:
Byte (4) Data [0] nn
Byte (5) Data [1] nn
… Data […] nn
Last Data Byte -1 Data [Data Count -1] nn
Data Link Tail:
Last Byte End of Packet (EOP) 0xF2
5.1 Errors
If the number of DLL data bytes received is the same as the data count and an EOP has not been received,
the AV1 responds by transmitting a NAK packet with an error code DC_ERR_INVALID_PACKET. The AV1
then continues to look for a SOP byte and will not process the erroneous application packet. The HOST can
use this as an indicator to retransmit the corrupted packet.
In addition, each byte of a packet must be received sequentially and within the INTER_PACKET_TIME. If
any of the bytes within a packet transmission exceeds the INTER_PACKET_TIME, the AV1 will respond by
transmitting a NAK packet with an error code DC_ERR_INVALID_PACKET. The AV1 then continues to look
for a SOP byte and will not process the erroneous application packet. The HOST can use this as
an indicator to retransmit the corrupted packet.
6 Application Layer
6.1 AV1 Asynchronous Notification Packets
AV1 has been designed to transmit the asynchronous notification packets following these system
changes:
1. Power On
2. Entering Standby
3. Front Panel Display update
4. Parameter Value Changes.
The notification packets are defined as follows:
6.1.1 Wakeup Notification
By transmitting the Wakeup Notification, AV1 indicates the unit has just “powered on” or reset and is ready
to receive host commands. This notification is primarily for the HOST to know the status of the
AV1.
6.1.1.1 Notification Packet Description
Application Header:

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Command DC_WAKEUP 0x01
Data Count 0 0x00
Application Data:
N/A
6.1.1.2 Host Response
The AV1 does not expect any response from the HOST.
6.1.2 Sleep Notification
By transmitting the Sleep Notification, AV1 indicates the unit is shutting down into a standby mode. Because
the hard power switch could be activated independently of the AV1 system software, hard power down will
not be notified. Acknowledgment of the Sleep Notification is not required. This notification is primarily for the
HOST to know the operating status of the AV1.
6.1.2.1 Notification Packet Description
Application Header:
Command DC_SLEEP 0x02
Data Count 0 0x00
Application Data:
N/A
6.1.3 Front Panel Display
AV1 will transmit the front panel display buffer following the update to the AV1 front panel display. The AV1
front panel display is 2 X 20 ASCII character display. The HOST can enable transmission of this notification
message by sending Host Wakeup (6.3.5 page 13). To disable transmission the HOST can
send Host Sleep (6.3.6 page 14). Transmission of the display buffer is asynchronous to other host/AV1
communication and will only transmit following the completion of any communication exchanges in progress
or pending.
6.1.3.1 Notification Packet Description
Application Header:
Command DC_FPD 0x03
Data Count 42 0x2A
Application Data:
Data[0] - Data[20] Line1 ch ch ch… 0x00
Data[21] - Data[41] Line2 ch ch ch … 0x00
6.1.3.2 Data Description
Line1
Data Type: Null (0x00) terminated ASCII character string.
Max Length: DISP_LINE_LENGTH defined in the Protocol Constants table
(Appendix D page 38).
Line2
Data Type: Null (0x00) terminated ASCII character string.
Max Length: DISP_LINE_LENGTH defined in the Protocol Constants table
(Appendix D page 38).
The AV1 includes 8 custom characters that are defined to display increments of a display block.

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(i.e. Volume Bar) The custom characters are ASCII character codes 8E - 93(hex). The codes are used as
follows:
'8E' - empty cell
'8F' - left 1 bar
'90' - left 2 bars
'91' - left 3 bars
'92' - left 4 bars
'93' - full cell
6.1.3.3 HOST Response
The AV1 does not expect any response from the HOST.
6.1.4 AV1 Parameter Notification by Id
AV1 will transmit parameter change notifications if they are enabled using the command described in Set
Parameter Notification by Id (6.3.17 page 26). If a parameter value is changed due to any user action or
system action the AV1 will transmit the current value of the parameter that is changing.
6.1.4.1 Command Packet Description
Application Header:
Command MC_PARAM_NOTIFICATION_BY_ID 0x05
Data Count 24 0x18
Application Data:
Data[0] ParamId(LSB) nn
Data[1] ParamId(MSB) nn
Data[2] ParamType nn
Data[3-23] Value[0 -20] nn nn
nn…
6.1.4.2 Data Description
Same as Set Parameter Value by Id: Data Description (6.3.12.2 page 20).
6.1.4.3 HOST Response
The AV1 does not expect any response from the HOST.
6.1.4.4 Defaults
The following Parameters Notifications are Enabled in the AV1 default state:
Parameter AV1 Parameter Name
Current Mode PARAM.MAIN.EFFECT
Main Zone Mute PARAM.MAIN.MUTE
Main Zone Volume PARAM.MAIN.VOLUME
Main Zone Balance PARAM.MAIN.BALANCE
Main Zone Input Selection PARAM.MAIN.INPUT
Bass PARAM.MAIN.BASS
Treble PARAM.MAIN.TREBLE
Loudness PARAM.MAIN.LOUDNESS
Tilt PARAM.MAIN.TILT

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Menu Background On/Off PARAM.OSD.BACKGND
See the V1.00 Parameter ID List (page 43) for the Parameter ID definitions.
6.2 Acknowledgment Packets
Acknowledge and No Acknowledge packets are used to communicate transmission, packet and data
validation status. Both the HOST and AV1 can transmit and receive these packets.
6.2.1 Acknowledge
6.2.1.1 Packet Description
Application Header:
Command DC_ACK 0xE0
Data Count 1 0x01
Application Data:
Data[0] Command nn
6.2.1.2 Data Description
Command:
DataType: Valid AV1 command as defined in the Command Codes table
(Appendix A page 34).
6.2.2 No Acknowledge
6.2.2.1 Packet Description
Application Header:
Command DC_NACK 0xE1
Data Count 2 0x02
Application Data:
Data[0] Command nn
Data[1] ErrorCode nn
6.2.2.2 Data Description
Command:
DataType: Valid AV1 command as defined in the Command Codes table
(Appendix A page 34).
ErrorCode:
DataType: Error code as defined in the Error Codes table (Appendix B page 35).
6.3 Host Initiated Command Packets
The AV1 serial communication protocol has been designed to respond to the following commands as
described below. Each command is transmitted to the AV1 with the identified parameters. If the command is
successfully received and processed by the AV1, the unit will respond with the described response packet
or action.

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6.3.1 Reset Unit
Commands the AV1 to soft reset.
6.3.1.1 Command Packet Description
Application Header:
Command DC_CMD_RESET 0x10
Data Count 0 0x00
Application Data:
N/A
6.3.1.2 AV1 Response
The AV1 will perform an internal reset. After reset, the AV1 will go through a soft power-up initialization. This
includes transmitting the “Wakeup Notification Packet”. A soft reset does not reinitialize the AV1. Nonvolatile
RAM is maintained.
6.3.2 Restore Defaults
Commands the AV1 to restore the system and effect parameters to the factory defaults.
6.3.2.1 Command Packet Description
Application Header:
Command DC_CMD_RESTORE_DEFAULTS 0x13
Data Count 0 0x00
Application Data:
N/A
6.3.2.2 AV1 Response
The AV1 will reset, or clear, any saved system and effect parameters in Nonvolatile RAM, and restore the
factory default system and effect parameters. After reset, the AV1 will go through a soft power-up
initialization. This includes transmitting the “Wakeup Notification Packet”.
6.3.3 Get Custom Name
Request to AV1 for an effect definition. AV1 will respond with “Custom Name Packet”.
6.3.3.1 Command Packet Description
Application Header:
Command DC_CMD_GET_CUST_NAME 0x2B
Data Count 0 0x00
Application Data:
N/A
6.3.3.2 Data Description
N/A

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6.3.3.3 Custom Name Response Packet
Application Header:
Command DC_RESP_CUST_NAME 0x89
Data Count Number of Characters in
CustomName + 1 nn
Application Data:
Data[0]- Data[DataCount-1] CustomName ch ch ch … 0x00
6.3.3.4 Data Description
CustomName:
Data Type: Null (0x00) terminated ASCII character string.
Max Length: CUSTOM_NAME_LENGTH as defined in the Protocol Constants table
(Appendix D page 38).
6.3.4 Set Custom Name
Sets the Custom Name that can be displayed when the unit powers up.

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6.3.4.1 Packet Description
Application Header:
Command DC_CMD_SET_CUST_NAME 0x2C
Data Count Number of characters in
CustomName + 2 nn
Application Data:
Data[0] CustomNameEnable nn
Data[1]-Data[DataCount-1] CustomName ch ch ch … 0x00
6.3.4.2 Data Description
CustomNameEnable: Enables/Disables the Custom Name Display.
DataType: Boolean
TRUE: CustomName Enabled
FALSE: CustomName Disabled
CustomName:
Data Type: Null (0x00) terminated ASCII character string.
Max Length: CUSTOM_NAME_LENGTH as defined in the Protocol Constants table
(Appendix D page 38).
6.3.4.3 AV1 Response
If the custom name enable is TRUE, then the custom name banner is display on “power on”. If the Custom
Name Enable is FALSE, the custom name is not displayed. The CustomName string is copied to Nonvolatile
RAM. The AV1 will ACK when completed with this command.
6.3.4.4 Data Validation:
No data validation is done on the transmitted data.
6.3.5 Host Wakeup
By transmitting the Wakeup Notification, the Host indicates it has just “powered on” or reset and is ready to
receive AV1 Notifications or Responses. The Host is assumed to be asleep upon power up of the AV1. Host
status is maintained during standby.
6.3.5.1 Command Packet Description
Application Header:
Command HOST_WAKEUP 0x11
Data Count 0 0x00
Application Data:
N/A
6.3.5.2 Data Description
N/A

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6.3.5.3 AV1 Response
The AV1 will respond to this command with an ACK.
6.3.6 Host Sleep
By transmitting the Sleep command, the Host indicates it has just “powered down” and will no longer
respond to AV1 Notifications. No Acknowledgment is expected. The Host is assumed to be asleep upon
power up of the AV1. Host status is maintained during standby.
6.3.6.1 Packet Description
Application Header:
Command HOST_SLEEP 0x12
Data Count 0 0x00
Application Data:
N/A
6.3.6.2 Data Description
N/A
6.3.7 Get Communication Configuration
This command is a request to the AV1 for the current communications configuration for the serial port and
protocol. The AV1 responds to this command with a Communication Configuration Packet.
6.3.7.1 Command Packet Description
Application Header:
Command DC_CMD_GET_COM_CONFIG 0x2F
Data Count 0 0x00
Application Data:
N/A
6.3.7.2 Communication Configuration Response Packet
Application Header:
Command DC_RESP_COM_CONFIG 0x8C
Data Count 1 0x01
Application Data:
Data[0] Configuration Register 0 nn
6.3.7.3 Data Description
Acknowledge Enable:
TRUE Indicates the AV1 will transmit Acknowledge Notification’s to the Host.

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FALSE Indicates the AV1 will not transmit any positive Acknowledge
Notification messages. The AV1 will always transmit NAK error notification messages.
Parameter Change Enable:
TRUE Indicates the AV1 will transmit any parameter change Notification as specified in the
Parameter Change Notification Message.
FALSE Indicates the AV1 will not transmit parameter change Notifications.
6.3.8 Set Communication Configuration
The Set Communication Configuration Command allows the serial port user to set up the various serial
port/ protocol configuration parameters.
6.3.8.1 Command Packet Description
Application Header:
Command DC_CMD_SET_COM_CONFIG 0x30
Data Count 1 0x01
Application Data:
Data[0] Configuration Register 0 nn
6.3.8.2 Data Description
Acknowledge Enable:
TRUE Indicates the AV1 will transmit Acknowledge Notification to the Host.
FALSE Indicates the AV1 will not transmit any positive Acknowledge
Notification messages. The AV1 will always transmit NAK error
notification messages.
Parameter Change Enable:
TRUE Indicates the AV1 will transmit any parameter change Notification as
specified in the Parameter Change Notification Message.
FALSE Indicates the AV1 will not transmit parameter change Notifications.
6.3.8.3 AV1 Response
The data values transmitted will be copied over to the registers stored in nonvolatile RAM. The
AV1 will respond with an ACK Packet.
6.3.9 Set Mute
The Set Mute Command message allows the RS232 users to set/clear the AV1 mute state directly.
6.3.9.1 Command Packet Description
Application Header:
Command DC_CMD_SET_MUTE 0x31
Data Count 1 0x01

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Application Data:
Data[0] Mute State nn
6.3.9.2 Data Description
MUTE State:
Value Definition Description
0 UNMUTE The user mute state is set to unmuted. The AV1
may still be muted for other internal reasons.
1 USER MUTE The system volume decrements by the specified
user amount as set in the OUTPUT LEVELS Menu.
2 FULL MUTE The system is fully muted.
6.3.9.3 AV1 Response
The AV1 will set the mute state according to the value transmitted. The AV1 may still be full
muted if other conditions require the audio path to be muted. This is only a direct access to the
user mute state.
6.3.9.4 Data Validation
The data value transmitted to the AV1 will be verified as a valid value. If it is valid, the AV1 will
set/clear the mute and respond with an ACK Packet. If the data value is invalid, the AV1 will
respond with a DC_INVALID_DATA error NAK.
6.3.10 Send Display String Command
This command allows the Host to send a 40 character string to the AV1 for display on the OSD and
Front Panel Display (FPD).
6.3.10.1 Packet Description
Application Header:
Command DC_CMD_SET_DISPLAY_ST
R 0x33
Data Count Number of characters in the
DisplayStr + 2 nn
Application Data:
Data[0] DisplayFlags nn
Data[1]-Data[DataCount-1] DisplayStr ch ch ch … 0x00
6.3.10.2 Data Description
Display Command Flags:

JBL Performance Series RS-232 Serial Protocol Definitions
20
Display String:
Data Type: Null (0x00) terminated ASCII character string.
Max Length: 40 Characters.
6.3.10.3 AV1 Response
The display string is sent to the OSD and Front Panel Display. The AV1 will ACK when
completed with this command.
6.3.10.4 Data Validation:
If a string length exceeds the 40 character maximum, the string will be truncated before
displaying and the AV1 will transmit a DC_NAK command with an error code
DC_INVALID_DATA.
6.3.11 AV1 Get Parameter Definition by Id
Request to AV1 for a Parameter Definition by Parameter Id. AV1 will respond with “AV1 Parameter
Definition Packet”.
6.3.11.1 Command Packet Description
Application Header:
Command MC_GET_PARAM_BY_ID 0x35
Data Count 2 0x02
Application Data:
Data[0] ParamId(LSB) nn
Data[1] ParamId(MSB) nn
6.3.11.2 Data Description
ParamId:
Data Type: Unsigned 16 bit Integer
Max Value: Max Parameter Count as reported by the AV1 Unit Configuration
Response Packet (6.3.14.2 page 22).