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K R A ME R E LE CT R O N IC S L T D .
USER MANUAL
MODEL:
908
40W per Channel Stereo Audio
Amplifier
P/N: 2900-000537 Rev 6
Contents
Achieving the Best Performance
Defining the 908 40W per Channel Stereo Audio Amplifier
Connecting Balanced/Unbalanced Stereo Audio Input/Output
Connect the 10V CONTROL Port to an External Controller
Connecting the 908 via the Ethernet Port
Using the RC-IR3 Infrared Remote Controller
Default Communication Parameters
9 908 Commands in Protocol 3000
Figures
Figure 1: 908 40W per Channel Stereo Audio Amplifier
Figure 2: Connecting the 908 40W per Channel Stereo Audio Amplifier
Figure 3: Balanced Stereo Audio Connection
Figure 4: Unbalanced Stereo Audio Input Connection
Figure 5: Unbalanced Stereo Audio Output Connection
Figure 6: Connecting the 10V VOL Terminal Block Connector
Figure 8: Local Area Properties Window
Figure 9: Internet Protocol (TCP/IP) Properties Window
Figure 10: Java Test Page Success Message
Figure 11: Entering the IP Number in the Address Bar
Figure 12: Loading the Embedded Web Server
Figure 13: First Time Security Warning
Figure 14: The 908 Control Window
908
–
Contents
i
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 video, audio, presentation, and broadcasting professionals 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 that are clearly defined by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers;
GROUP 3: Control Systems; GROUP 4: Format/Standards Converters; GROUP 5:
Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7:
Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9:
Room Connectivity; GROUP 10: Accessories and Rack Adapters and GROUP 11:
Sierra Products.
Congratulations on purchasing your Kramer 908 40W per Channel Stereo Audio
Amplifier, which is ideal for the following typical applications:
Presentation rooms and multimedia applications for quick, local audio amplification
Personal audio listening (for example, a PC and portable CD player)
908 - Introduction 1
2 Getting Started
2
We recommend that you:
Unpack the equipment carefully and save the original box and packaging materials for possible future shipment
Review the contents of this user manual
i
Go to http://www.kramerelectronics.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 only good quality connection cables (we recommend Kramer highperformance, high-resolution cables) to avoid interference, deterioration in signal quality due to poor matching, and elevated noise levels (often associated with low quality cables)
Do not secure the cables in tight bundles or roll the slack into tight coils
Avoid interference from neighboring electrical appliances that may adversely influence signal quality
Position your Kramer 908 away from moisture, excessive sunlight and dust
!
This equipment is to be used only inside a building. It may only be connected to other equipment that is installed inside a building.
908 - Getting Started
2.2 Safety Instructions
!
Caution:
There are no operator serviceable parts inside the unit
Warning:
Use only the Kramer Electronics input power wall adapter that is provided with the unit
Warning:
Disconnect the power and unplug the unit from the wall before installing
2.3 Recycling Kramer Products
The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected and recycled. To comply with the WEEE Directive,
Kramer Electronics has made arrangements with the European Advanced
Recycling Network (EARN) and will cover any costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular country go to our recycling pages at
http://www.kramerelectronics.com/support/recycling/
.
908 - Getting Started 3
3 Overview
The Kramer 908 is a high-performance audio amplifier for line-level stereo audio signals. It accepts either a stereo audio signal on RCA connectors or a balanced stereo audio signal on a terminal block connector. It delivers a speaker output of
2x40 watts RMS per channel into an 8
load on a 10A 4-pin terminal block connector. The 908 features:
Two input selector buttons and a mute button
One gain knob for adjusting the audio output levels for loudness, bass, middle, treble, balance and the volume
A USB connector for firmware upgrade
RS-232 and Ethernet ports
A 10V control port for adjusting the audio gain via an external connector (for example, the Kramer RC-63A)
The 908 can be controlled:
Directly, via the front panel push buttons and adjustment knob
By RS-232 serial commands transmitted by a touch screen system, PC, or other serial controller
Via an external 10V controller (for volume)
Via the Ethernet using the embedded Web server
Remotely, from the infrared remote control transmitter
The 908 is housed in a Kramer MegaTOOLS™ enclosure and is fed by a 24V DC power supply.
4 908 - Overview
3.1 Defining the 908 40W per Channel Stereo Audio
Amplifier
This section defines the 908.
Figure 1: 908 40W per Channel Stereo Audio Amplifier
#
1
2
3
4
5
6
7
8
9
10
11
12
13
Feature Function
INPUT 1 L and R RCA Connectors Connect to the left and right unbalanced stereo analog audio acceptor
INPUT 2 Terminal Block Connector Connect to the balanced stereo audio source
OUTPUT Terminal Block
Connector
Connect to a balanced stereo acceptor (speakers)
10V VOL G, V, + Terminal Block
Connector
RS-232 G Tx Rx Terminal Block
Connector
ETHERNET Port
FACTORY RESET Button
Connect to a controller (for example, the Kramer
RC-63A) to adjust the volume via the controller
Control connector
PROGRAM Switch
24V DC Connector
IR IN Receiver
ON LED
MUTE Button
INPUT SELECTOR Buttons
Connects to your LAN
Press to return the device to its factory default settings
Switch down before performing a firmware upgrade, leave up (the default) for normal operation
+24V DC for powering the unit
Accepts IR remote commands
Illuminates green when receiving power, flashes when receiving IR commands
Press to disable/enable the audio output. The button illuminates when the audio output is disabled
Press to select the input audio source 1 or 2
908 - Overview 5
#
15
20
Feature
14 LOUDNESS Button
BASS Button
16 MID Button
17 TREBLE Button
18 BALANCE Button
19 VOLUME Button
Level Adjustment Knob
21 PROGRAM (USB) Connector
Function
Press to select the loudness adjustment, adjust with the level knob
Press to select the bass adjustment, adjust with the level knob
Press to select the mid- range adjustment, adjust with the level knob
Press to select the treble adjustment, adjust with the level knob
Press to select the balance between right and left speakers, adjust with the level knob
Press to select the volume adjustment, adjust with the level knob
Increase and decrease the level of the previously selected function. Press and hold to disable local volume control and enable remote volume control.
Press and hold again to activate local volume control (see
Connect to a computer to upgrade the firmware
6 908 - Overview
4 Connecting the 908
i
Always switch off the power to each device before connecting it to your
908. After connecting your 908, connect its power and then switch on the power to each device.
To connect the 908, as illustrated in the example in Figure 2 , (see the input/output
connections in
1. Connect an unbalanced stereo audio source (for example, the unbalanced stereo audio output of a DVD player) to the L and R INPUT 1 RCA connectors.
2. Connect a balanced stereo audio source (for example, the balanced stereo audio output of a DVD player) to the INPUT 2 terminal block connector.
3. Connect the OUTPUT terminal block to a pair of loudspeakers:
Connect the “L+” and the “L-” terminal block connectors to the left loudspeaker, and the “R+” and the “R-” terminal block connectors to the right loudspeaker. Do not ground the loudspeakers.
4. Connect the 24V DC power adapter to the power socket and connect the
adapter to the mains electricity (not shown in Figure 2 ).
5. If required, connect:
The 10V CONTROL terminal block connector to an external controller
(for example, the Kramer RC-63A) (see
The RS-232 port to a PC and/or serial controller (see
The Ethernet port to a PC or a network hub or router (see
908 - Connecting the 908 7
Figure 2: Connecting the 908 40W per Channel Stereo Audio Amplifier
4.1 Connecting Balanced/Unbalanced Stereo Audio
Input/Output
This section illustrates how to wire:
A balanced stereo audio connection, see Figure 3
An unbalanced stereo audio input connection, see Figure 4
An unbalanced stereo audio output connection, see Figure 5
8
Figure 3: Balanced Stereo
Audio Connection
Figure 4: Unbalanced
Stereo Audio Input
Connection
Figure 5: Unbalanced
Stereo Audio Output
Connection
908 - Connecting the 908
4.2 Connect the 10V CONTROL Port to an External
Controller
You can connect the 908 10V VOL terminal block connector to a controller (for
example, the Kramer RC-63A) as illustrated in Figure 6 :
Figure 6: Connecting the 10V VOL Terminal Block Connector
4.3 Connecting a PC via RS-232
You can connect a PC (or other controller) to the 908 via the RS-232 terminal block connector.
To connect a PC to a 908 unit, connect the RS-232 terminal block connector on the
908 unit to the RS-232 9-pin D-sub port on your PC, see Figure 7 :
Figure 7: Connecting to a PC
908 - Connecting the 908 9
4.4 Connecting the 908 via the Ethernet Port
To connect the 908 via the Ethernet port, do the following:
When connecting to the Ethernet port on a network hub or network router, use a straight-through cable with RJ-45 connectors
When connecting to the Ethernet port of a PC, use a crossover cable with
RJ-45 connectors
If you are connecting the 908 directly to your computer (not through the network) you may need to reconfigure the PC network settings.
To reconfigure the PC network settings:
1. Navigate to Start > Settings > Network Connections.
2. Click on the appropriate Local Area Connection.
3. Right-click the Local Area Connection and click Properties.
The Local Area Properties Window appears:
10
Figure 8: Local Area Properties Window
908 - Connecting the 908
4. Select Internet Protocol (TCP/IP) and click Properties.
The Internet Protocol (TCP/IP) Properties Window appears:
Figure 9: Internet Protocol (TCP/IP) Properties Window
5. Click Use the following IP address and enter the IP address and Subnet mask shown above. Click OK and OK to close both windows and save the settings.
908 - Connecting the 908 11
5 Operating the 908
You can operate your 908 using:
The front panel buttons (see
PC, touch screen system, or other serial controller via RS-232 serial commands (see
The Ethernet via the embedded Web server (see
The included RC-IR3 Infrared Remote Controller (see
5.1 Using the Front Panel Buttons
The front panel buttons let you:
Select an input, by pressing the INPUT 1 or the INPUT 2 button
Adjust the sound
Mute the sound by pressing the MUTE button
To adjust the sound of the output signal:
1. Press the sound component that you want to adjust (LOUD, BASS, MID,
TREBLE, BAL or VOLUME). The button illuminates.
2. Turn the adjustment knob to adjust the setting.
Note: To enable remote volume control via the 10V VOL connector (using for example, the Kramer RC-63A), you must disable the local digital volume control by pressing and holding the VOLUME button on the front panel for several seconds.
The LED flashes to indicate that remote control is enabled. In this mode, volume
control via software ("Set simple audio volume" P3000 command, see Section
is disabled. To disable remote control, press and hold the VOLUME button and the
LED lights solid.
12 908 - Operating the 908
5.2 Using Serial Commands
To operate your device using serial commands, you need to install Kramer's control software.
Download control software from our Web site at http://www.kramerelectronics.com.
For an explanation of all control commands, see
5.3 Using the Embedded Web Server
You can remotely operate the 908 using a Web browser via the Ethernet connection (see
). To be able to do so, you must use a supported Web
browser; Microsoft (V6.0 and higher), Chrome or Firefox (V3.0 and higher).
To check that Java is installed correctly and running, browse to: http://www.java.com/en/download/help/testvm.xml
This page runs a test and displays a Java success (see Figure 10 ) or failure
message.
Figure 10: Java Test Page Success Message
If you do not see the success message, follow the instructions on the page to:
Load and enable Java
Enable Javascript in your browser
Make sure that your PC is connected via the Ethernet connection to the 908 (see
908 - Operating the 908 13
1. Open your Internet browser.
2.
Enter the unit’s IP number or name in the Address bar of your browser.
If you are using DHCP, you must enter the name.
The default IP number is 192.168.1.39, and may be changed by the system integrator.
Figure 11: Entering the IP Number in the Address Bar
The following window appears:
14
Figure 12: Loading the Embedded Web Server
3. Check that Java and JavaScript is enabled in your browser.
The following window appears:
908 - Operating the 908
Figure 13: First Time Security Warning
4. Click Run.
The 908 Control Window opens (see Figure 14 ):
Figure 14: The 908 Control Window
5. To choose the desired input, click on Input 1 or Input 2 (see Figure 15 ).
Each input has its own set of audio adjustments.
6. To adjust each function, click and hold each slider and drag to the right to increase or to the left to decrease the shown value.
7. To mute the output, check the Mute box.
908 - Operating the 908 15
Figure 15: Control Settings
8. To change the Ethernet settings, click the Settings tab at the top of the
Control Window. The Ethernet settings display (see Figure 16 ):
16
Figure 16: Ethernet Settings
9. Make any necessary changes and click Save to save the settings.
10. To return to the Control Window, click 908 under the Kramer logo.
908 - Operating the 908
5.4 Using the RC-IR3 Infrared Remote Controller
You can use the RC-IR3 remote controller to make some of the adjustments that are made using the front panel buttons:
Loudness, bass, mid, treble and balance adjustments are not adjustable using the IR remote.
To choose an input, press button 1 or 2
To toggle muting, press the OFF button
To increase the volume, press + (►)
To decrease the volume, press
– (◄)
908 - Operating the 908 17
6 Updating the 908 Firmware
The 908 functions by means of a device microcontroller that runs firmware located in FLASH memory.
If required, you can download and upgrade to the latest version of firmware.
Download from the Kramer Web site www.kramerelectronics.com.
The firmware is installed using the P3K software that is also available from the Kramer Web site.
18 908 - Updating the 908 Firmware
7 Default Communication Parameters
The following table lists the communication parameters as used in Kramer
Electronics products.
RS-232
Protocol 3000 (Default)
Baud Rate:
IP Address: 192.168.1.39
Mask: 255.255.255.0
Gateway: 192.168.1.1
TCP Port #: 5000
UDP Port #: 50000
115,200
Data Bits:
Stop Bits:
Parity:
Command Format:
Ethernet Factory Default Values
8
1
None
ASCII
Power cycle the unit while pressing the Factory Reset button, located on the rear panel of the unit.
908 - Default Communication Parameters 19
8 Technical Specifications
INPUTS:
OUTPUTS:
INPUT SENSITIVITY:
MAX. VOLTAGE GAIN:
OUTPUT POWER:
BANDWIDTH (-3dB):
CROSSTALK:
CONTROLS:
COUPLING:
AUDIO THD + NOISE:
AUDIO 2nd HARMONIC:
SIGNAL/NOISE RATIO:
AMPLIFIER TYPE:
POWER CONSUMPTION:
OPERATING TEMPERATURE:
STORAGE TEMPERATURE:
HUMIDITY:
DIMENSIONS:
WEIGHT:
ACCESSORIES:
OPTIONS:
1 unbalanced stereo audio input on RCA connectors
1 balanced stereo audio input on a 5-pin terminal block connector
1 USB connector
1 speaker stereo audio output on a 4-pin terminal block connector
Unbalanced: 360mVpp; balanced: 220mVpp
Unbalanced: 35dB; balanced: 40.5dB
40W per channel into 8Ω
22kHz
<-57dB @20kHz
Level: <-30dB to 35.5dB; balance: -30dB to 0dB; loudness: -14dB to 0dB @1kHz; bass: -15dB to 12dB
@100Hz; mid: -15dB to 11dB @1kHz; treble: -14dB to
13dB @10kHz; input selector buttons, mute button, loudness, bass, mid, treble, balance, volume buttons, IR, RS-232, Ethernet,
10V volume control
Input: AC, output: DC
0.15%
0.06%
63dB, 80dB @10% distortion
Class D
24V DC, 2A
0° to +40°C (32° to 104°F)
-40° to +70°C (-40° to 158°F)
10% to 90%, RHL non-condensing
18.8cm x 11.4cm x 2.4cm (7.4" x 4.5" x 0.94") W, D, H
0.6kg (1.32lbs)
Power supply, RC-IR3 remote controller
RK-
T2B 19” rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com
20 908 - Technical Specifications
9 908 Commands in Protocol 3000
This RS-232/RS-485 communication protocol lets you control the machine from any standard terminal software (for example, Windows® HyperTerminal
Application) and uses a data rate of 115200 baud, with no parity, 8 data bits, and 1 stop bit.
This section describes all commands sent to the 908. For an explanation of the
syntax and use of Protocol 3000, see Section
9.1 Operating Commands
Following are the specific commands that the room controller (RC device) sends to the 908 to operate the external devices.
9.2 Help Commands
Command
Protocol handshaking
Syntax
#CR
Response
~OKCRLF
9.3 Device Initiated Messages
Command
Start message
Syntax
Kramer Electronics LTD. , Device Model Version
Software Version
Switcher actions:
Audio channel has switched (breakaway mode)
AUD IN>OUT
9.4 Result and Error Codes
Command ran successfully, no error.
Protocol Errors:
Syntax error
Command not available for this device
Parameter is out of range
Unauthorized access (command run without the matching login).
Syntax
COMMAND PARAMETERS OK
ERR001
ERR002
ERR003
ERR004
908 - 908 Commands in Protocol 3000 21
9.5 Basic Routing Commands
Command
Switch audio only
Switch audio only
Syntax
AUD IN>OUT, IN>OUT
, …
Short form: A IN>OUT, IN>OUT,
…
AUD IN>OUT, IN>OUT
, …
Short form: A IN>OUT, IN>OUT,
…
Read audio connection
AUD? OUT
Short form: A? OUT
AUD? *
Parameter Description:
IN = Input number or '0' to disconnect output.
'
>
' = Connection character between in and out parameters.
OUT = Output number or '*' for all outputs.
Response
AUD IN>OUT, IN>OUT,
…RESULT
AUD IN>OUT, IN>OUT,
…RESULT
AUD IN>OUT
AUD IN>1, IN
>2, …
9.6 Audio Parameters Commands
Command
Set simple audio volume
Increase/decrease simple audio volume
Read simple audio level
Set audio level in specific amplifier stage.
Read audio volume level
Syntax
VOLUME VOLUME
Short form: VOL VOLUME
VOLUME +/-
Short form: VOL +/-
VOLUME?
Short form: VOL?
AUD-LVL STAGE, CHANNEL, VOLUME
Short form: ADL STAGE, CHANNEL,
VOLUME
AUD-LVL? STAGE, CHANNEL
Short form: ADL? STAGE
Response
VOLUME VOLUME RESULT
VOLUME +/- RESULT
VOLUME VOLUME
AUD-LVL STAGE, CHANNEL,
VOLUME RESULT
AUD-LVL STAGE, CHANNEL,
VOLUME
Advanced commands for controlling each stage of audio amplification:
Set audio bass level
BASS CHANNEL, BASS
Short form: ADB CHANNEL, BASS
Read audio bass level
BASS? CHANNEL
Short form: ADB? CHANNEL
Set audio treble level TREBLE CHANNEL,TREBLE
Short form: ADT CHANNEL,TREBLE
Read audio treble TREBLE? CHANNEL
Short form: ADT? CHANNEL
Set audio midrange
MIDRANGE CHANNEL, MID_RANGE
Short form: ADM CHANNEL, MID_RANGE
Read audio midrange
MIDRANGE? CHANNEL
Short form: ADM? CHANNEL
Set audio loudness
LOUDNESS CHANNEL, LOUDNESS
Short form: ADS CHANNEL, LOUDNESS
BASS CHANNEL, BASS
RESULT
BASS CHANNEL, BASS
TREBLE CHANNEL, TREBLE
RESULT
TREBLE CHANNEL, TREBLE
MIDRANGE CHANNEL,
MID_RANGE RESULT
MIDRANGE CHANNEL,
MID_RANGE
LOUDNESS CHANNEL,
LOUDNESS RESULT
22 908 - 908 Commands in Protocol 3000
Command Syntax
Read audio loudness LOUDNESS? CHANNEL
Short form: ADS? CHANNEL
Mute audio
MUTE MUTE-MODE
MUTE? Read audio mute state
Set stereo mode
STEREO STEREO-MODE
Response
LOUDNESS CHANNEL,
LOUDNESS
MUTE MUTE-MODE RESULT
MUTE MUTE-MODE
STEREO STEREO-MODE
RESULT
Read stereo mode STEREO?
STEREO STEREO-MODE
Set balance mode
BALANCE OUT-CHANNEL, BALANCE-LEVEL BALANCE OUT-CHANNEL,
BALANCE-LEVEL RESULT
Read balance mode
BALANCE? OUT-CHANNEL BALANCE OUT-CHANNEL,
BALANCE-LEVEL
Parameter Description:
STAGE
= ‘IN, ’OUT’ or
Numeric value of present audio processing stage. For example: ‘0’ for input level, ‘1’ for pre-amplifier, ‘2’ for amplifier (OUT) etc.
CHANNEL = Input or Output #
VOLUME / BASS / TREBLE / MID_RANGE = Audio parameter in Kramer units, minus sign precedes negative values.
++ increase current value,
-- decrease current value.
9.7 Identification Commands
Command
Protocol handshaking
Read device model
Syntax
#CR
MODEL?
Response
~OK CRLF
MODEL MACHINE_MODEL
Read device serial number SN?
Read device firmware version
VERSION?
SN SERIAL_NUMBER
VERSION MAJOR .MINOR .BUILD
.REVISION
Set machine name
Read machine name
NAME MACHINE_NAME NAME MACHINE_NAME RESULT
NAME? NAME MACHINE_NAME
Reset machine name to factory default*
NAME-RST
NAME-RST MACHINE_FACTORY_NAME
RESULT
*Note: The machine name is not the same as the model name. The machine name is used to identify a specific machine or a network in use (with DNS feature on).
MACHINE_NAME = Up to 14 alphameric chars.
* Machine factory name = Model name + last 4 digits from serial number.
Set machine ID number MACH-NUM
MACHINE_NUMBER
MACH-NUM OLD_MACHINE_NUMBER
,NEW_MACHINE_NUMBER RESULT
* A response is sent after the machine number was changed. The response with the header is:
NEW_MACHINE_NUMBER @MACH-NUM OLD_MACHINE_NUMBER ,NEW_MACHINE_NUMBER
OK
908 - 908 Commands in Protocol 3000 23
9.8 Network Setting Commands
Command
Set IP address
Read IP address
Syntax
NET-IP IP_ADDRESS
Short form: NTIP
NET-IP?
Short form: NTIP?
Read MAC address NET-MAC?
Short form: NTMC
Set subnet mask
NET-MASK SUBNET_MASK
Short form: NTMSK
Read subnet mask NET-MASK?
Short form: NTMSK?
Set gateway address NET-GATE GATEWAY_ADDRESS
Short form: NTGT
Read subnet mask NET-GATE?
Short form: NTGT?
Set DHCP mode
Read subnet mask
NET-DHCP DHCP_MODE
Short form: NTDH
NET-DHCP?
Short form: NTDH?
Response
NET-IP IP_ADDRESS RESULT
NET-IP IP_ADDRESS
NET-MAC MAC_ADDRESS
NET-MASK SUBNET_MASK RESULT
NET-MASK SUBNET_MASK
NET-GATE GATEWAY_ADDRESS
RESULT
NET-GATE GATEWAY_ADDRESS
NET-DHCP DHCP_MODE RESULT
NET-DHCP DHCP_MODE
DHCP_MODE =
‘0’ – Don't use DHCP (Use IP set by factory or IP set command).
‘1’ – Try to use DHCP, if unavailable use IP as above.
Change protocol
Ethernet port
ETH-PORT PROTOCOL , PORT
Short form: ETHP
ETH-PORT PROTOCOL ,PORT
RESULT
Read protocol
Ethernet port
ETH-PORT? PROTOCOL
Short form: ETHP?
ETH-PORT PROTOCOL , PORT
PROTOCOL = TCP/UDP (transport layer protocol)
PORT = Ethernet port that accepts Protocol 3000 commands
1-65535 = User defined port
0 - Reset port to factory default (50000 for UDP, 5000 for TCP)
9.9 Machine Information Commands
Command Syntax
Set device time and date
TIME DATE_TIME
Response
TIME DATE_TIME RESULT
Read device time and date TIME?
TIME? DATE_TIME
Note: Time setting commands require administrator authorization.
Read in/out count INFO-IO?
Read max preset count INFO-PRST?
INFO-IO: IN INPUTS_COUNT, OUT
OUTPUTS_COUNT
INFO-PRST: VID
PRESET_VIDEO_COUNT , AUD
PRESET_AUDIO_COUNT
Execute firmware upgrade* UPGRADE UPGRADE OK
Firmware usually uploads to a device via a command like LDFW. The device may need to be reset to complete the process.
24 908 - 908 Commands in Protocol 3000
Command
Reset to factory default configuration
Set model name
Syntax
FACTORY
Response
FACTORY RESULT
FCT-MODEL
FACTORY_PASSWORD
MODEL_NAME
FCT-MODEL MAC_ADDRESS RESULT
*If implemented by hard coding, protocol command is unnecessary
Set MAC address FCT-MAC
FACTORY_PASSWORD
MAC_ADDRESS
FCT-MAC MAC_ADDRESS RESULT
Set SN # FCT-SN
FACTORY_PASSWORD
SN#
FCT-SN SN# RESULT
* Machine factory settings commands are not for public knowledge. Reference is only for internal implementation
9.10 Protocol 3000 Syntax
Protocol 3000 is used to control the 908 via an RS-232 connection using a PC, touch screen, other serial controller or RC type controller.
9.10.1 Host Message Format
Start Address (optional)
#
Destination_id@
Body
Message
Delimiter
CR
9.10.2 Simple Command
Start
#
Command string with only one command without addressing:
Body Delimiter
Command SP
Parameter_1,Parameter_2,…
CR
9.10.3 Command String
Formal syntax with commands concatenation and addressing:
Start Address
#
Destination_id@
Body
Command_1
Parameter1_1,Parameter1_2,…|
Command_2
Parameter2_1,Parameter2_2,…|
Command_3
Parameter3_1,Parameter3_2,…|…
Delimiter
CR
9.10.4 Device Message Format
Start Address (optional)
~
Sender_id@
Body
Message delimiter
CR LF
908 - 908 Commands in Protocol 3000 25
9.10.5 Device Long Response
Echoing command:
Start Address (optional)
~
Sender_id@
Body
Command SP [
Param1 ,Param2 …] result
CR = Carriage return (ASCII 13 = 0x0D)
LF = Line feed (ASCII 10 = 0x0A)
SP = Space (ASCII 32 = 0x20)
9.10.6 Command Terms
Delimiter
CR LF
Command
A sequence of ASCII letters ('A'-'Z', 'a'-'z' and '-').
Command and parameters must be separated by at least one space.
Parameters
A sequence of alphameric ASCII characters ('0'-'9','A'-'Z','a'-'z' and some special characters for specific commands). Parameters are separated by commas.
Message string
Every command 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 a pipe ( '|' ) character.
Message starting character
'#'
– For host command/query
'~'
– For machine response
Query sign
'?' follows some commands to define a query request.
All outputs sign
'*' defines all outputs.
Message closing character
CR
– For host messages; carriage return (ASCII 13)
CRLF
– For machine messages; carriage return (ASCII 13) + line-feed (ASCII 10)
26 908 - 908 Commands in Protocol 3000
Command chain separator character
When a message string contains more then one command, a pipe ( '|' ) character separates each command.
Spaces between parameters or command terms are ignored.
9.10.7 Entering Commands
You can directly enter all commands using a terminal with ASCII communications software, such as HyperTerminal, Hercules, etc. Connect the terminal to the serial,
Ethernet, or USB port on the Kramer device. To enter CR , press the Enter key.
(LF is also sent but is ignored by command parser).
For commands sent from some non-Kramer controllers like Crestron, some characters require special coding (such as, /X##). Refer to the controller manual.
9.10.8 Command Forms
Some commands have short name syntax in addition to long name syntax to allow faster typing. The response is always in long syntax.
9.10.9 Command Chaining
Multiple commands 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 beginning of the string and at the end.
Commands in the string do not execute until the closing character is entered.
A separate response is sent for every command in the chain.
9.10.10 Maximum String Length
64 characters.
908 - 908 Commands in Protocol 3000 27
28 908 - 908 Commands in Protocol 3000
For the latest information on our products and a list of Kramer distributors, 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: [email protected]
!
SAFETY WARNING
Disconnect the unit from the power supply before opening and servicing
Rev: 6 P/N: 2900- 000537
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