Kramer Electronics, Ltd.
Contents Contents 1 2 2.1 2.2 2.3 2.4 3 4 5 6 6.1 6.2 Introduction Getting Started Achieving the Best Performance Safety Instructions Recycling Kramer Products Quick Start Overview Your 910 Digital Audio Preamplifier Installing the 910 in a Rack Connecting the 910 Digital Audio Preamplifier Connecting the RS-232 Port Connecting the ETHERNET Port 1 1 2 2 2 3 4 4 8 9 10 10 6.3 6.4 7 7.
Contents 10.4 10.5 10.6 10.7 10.8 10.9 10.10 10.11 10.12 10.13 10.14 10.
Introduction 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 the video, audio, presentation, and broadcasting professional 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 1 that are clearly defined by function.
Getting Started 2.
Getting Started 2.4 Quick Start This quick start chart summarizes the basic setup and operation steps.
Overview 3 Overview The 910 is a high-performance stereo audio preamplifier. It accepts balanced and unbalanced stereo audio, S/PDIF digital audio, and microphone inputs, processes the signals, and outputs them to balanced, unbalanced and S/PDIF outputs.
Your 910 Digital Audio Preamplifier Figure 1: 910 Digital Audio Preamplifier 5
Your 910 Digital Audio Preamplifier Table 1: 910 Digital Audio Preamplifier Functions 1 # IR Receiver Feature 2 MUTE Button 3 4 5 6 7 8 INPUT Selector Buttons MID Button BASS Button TREBLE Button LOUDNESS Button EQUALIZER Button 9 VOLUME Button 10 BALANCE Button 11 12 13 DELAY Button MIX Button TALKOVER Button 14 15 16 EXPAND Button COMPRESS Button STORE Button 17 RECALL Button 18 19 20 DISPLAY Adjustment Knob INPUT 1 (LEFT, RIGHT) RCA Connectors INPUT 2 Terminal Block Connector INPUT 3 S
Your 910 Digital Audio Preamplifier # 29 Feature FACTORY DEFAULT Button 30 31 USB (PROGRAM) Connector RS-232 9-pin D-sub (F) Port 32 ETHERNET RJ-45 Connector 33 34 Power Connector with Fuse Power Switch Function Press to revert to the default settings, including all the configured buttons Connect to the PC using a USB cable for remote control Connect to the RS-232 connector on the AV equipment or a PC or other serial controller for remote control Connects to the PC or other serial controller through
Installing the 910 in a Rack 5 Installing the 910 in a Rack This section describes how to install the 910 in a rack.
Connecting the 910 Digital Audio Preamplifier 6 Connecting the 910 Digital Audio Preamplifier To connect the 910 as illustrated in the example in Figure 2 1: 1.
Connecting the 910 Digital Audio Preamplifier Figure 2: Connecting the 910 Digital Audio Preamplifier 6.1 Connecting the RS-232 Port You can connect to the unit via a straight pin-to-pin RS-232 connection, using for example, a PC. Connect the RS-232 9-pin D-sub port on the unit via a straight cable (pin 2 to pin 2, Pin 3 to pin 3, and pin 5 to pin 5) to the RS-232 9-pin D-sub port on the PC. Is a shielded cable is used, connect the shield to pin 5. Note: There is no need to connect any other pins. 6.
Connecting the 910 Digital Audio Preamplifier • To connect to a network hub or network router with a straightthrough cable, see Section 6.2.2 • To configure the Ethernet port, see Section 6.2.3 6.2.1 Connecting the ETHERNET Port Directly to a PC (Crossover Cable) You can connect the Ethernet port of the 910 to the Ethernet port on your PC, via a crossover cable with RJ-45 connectors.
Connecting the 910 Digital Audio Preamplifier 6. Select Use the following IP address, and fill in the details, (see Figure 4). 7. Click OK. Figure 4: Internet Protocol (TCP/IP) Properties Window 6.2.2 Connecting the ETHERNET Port via a Network Hub (Straight Through Cable) You can connect the Ethernet port of the 910 to the Ethernet port on a network hub or network router, via a straight through cable with RJ-45 connectors. 6.2.
Connecting the 910 Digital Audio Preamplifier Figure 5: Connect Screen 2. Select the method to connect to the Ethernet port of the 910. Select: • Ethernet, if you know the IP address number 1 or the machine name. The default name for the machine is KRAMER_XXXX 2 • Serial, if you are connected via a serial port 3. Click OK. The Device Properties window appears, (see Figure 6). 1 The default IP address is 192.168.1.
Connecting the 910 Digital Audio Preamplifier Figure 6: Device Properties Screen 4. If required, make changes and press Set. If not, click Close. 6.3 Connecting via USB To connect the 910 via the USB port, you must plug the USB cable into the PC and install the Kramer USB driver downloaded from our Web site at http://www.kramerelectronics.com. 6.4 Connecting a Microphone to the XLR Input Connect a microphone to the XLR input as illustrated in Figure 7.
Operating the 910 Digital Audio Preamplifier 7 Operating the 910 Digital Audio Preamplifier You can operate your 910 using: • The front panel buttons, (see Section 7.1) • Serial commands via the RS-232/USB/Ethernet ports transmitted by a touch screen system, PC, or other serial controller, (see Section 7.2) • RC-IR2 Infrared remote control transmitter, (see Section 7.3) 7.
Operating the 910 Digital Audio Preamplifier Table 2: 910 Front Panel Button Functions Button Display MUTE 1 4 BASS TREB MID LDNS VOL BAL EQ DLY TR EXPD MIX CMPS STO Meaning/Range Mute 2 3 Function Notes When pressed, stops all output INPUT 1 Unbalanced stereo INPUT 2 Balanced stereo INPUT 3 S/PDIF digital stereo INPUT 4 Microphone Bass -40 to +40 Adjusts low-level tones Treble -40 to +40 Adjusts high-level tones Mid -40 to +40 Adjusts mid-level tones Loudness -40 t
Operating the 910 Digital Audio Preamplifier 7.2 Controlling the 910 from the PC To operate your device remotely from your PC over the RS-232, USB or Ethernet ports, you need to download and install Kramer's 910 Control Application 1. Figure 8: 910 Control Application Screen For an explanation of all control commands, see Section 10. 7.3 Using the Infrared Remote Controller To operate your device using the RC-IR2 infrared remote controller, see the User Manual packed with the remote controller. 7.
Technical Specifications 8 Technical Specifications The 910 technical specifications are shown in Table 3.
Protocol 3000 Syntax 9 Protocol 3000 Syntax 9.1 Host Message Format Start Address (optional) Body Delimiter # Destination_id@ Message CR 9.1.1 Simple Command Command string with only one command without addressing: Start Body Delimiter # Command SP Parameter_1,Parameter_2,… CR 9.1.
910 Commands in Protocol 3000 10 910 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 910. For an explanation of the syntax and use of Protocol 3000, see Section 10. 10.
910 Commands in Protocol 3000 10.4 Basic Routing Commands Switch audio AUD IN>OUT, IN>OUT, … Short form: A IN>OUT, IN>OUT, … AUD IN>OUT, IN>OUT, …RESULT Read audio connection AUD? OUT Short form: A? OUT AUD? * AUD IN>OUT AUD IN>1, IN>2, … Parameter Description: IN = Input number or '0' to disconnect output. '>' = Connection character between in and out parameters. OUT = Output number or '*' for all outputs. Example: Switch audio input 2 to output 1 #A 2>1CR ~AUD 2>1 OKCRLF 10.
910 Commands in Protocol 3000 10.6 Audio Parameter Commands Command Syntax Response Set simple audio volume VOLUME VOLUME Short form: VOL VOLUME VOLUME VOLUME RESULT Increase/decrease simple audio volume VOLUME +/Short form: VOL +/- VOLUME +/- RESULT Read simple audio level VOLUME? Short form: VOL? VOLUME VOLUME Set audio level in specific amplifier stage.
910 Commands in Protocol 3000 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.
910 Commands in Protocol 3000 Command Syntax Response Set DHCP mode NET-DHCP DHCP_MODE Short form: NTDH NET-DHCP? Short form: NTDH? NET-DHCP DHCP_MODE RESULT Read subnet mask 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.
910 Commands in Protocol 3000 Message starting character '#' – For host command/query '~' – For machine response Device address (Optional, for K-NET) K-NET Device ID followed by '@' Query sign '?' follows some commands to define a query request. All outputs sign '*' defines all outputs.
910 Commands in Protocol 3000 Commands in the string do not execute until the closing character is entered. A separate response is sent for every command in the chain. 10.14 Maximum String Length 64 characters 10.15 Backward Support Protocol 2000 is transparently supported by Protocol 3000. You can switch between protocols using a switch protocol command from either platform.
For the latest information on our products and a list of Kramer distributors visit www.kramerelectronics.com where updates to this user manual may be found. We welcome your questions, comments and feedback. Safety Warning: Disconnect the unit from the power supply before opening/servicing. Caution P/N: 2900- 000492 Rev: 4 Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
