Recording Hookup ELK-120/124 only, Audio

Recording Hookup (ELK-120/124 ONLY)

The recording hookup requires the following supplied items: 1 - ELK-129 module.

1 - 1 foot, 5-pin ribbon cable.

1 - 6 foot shielded audio cable.

You will need the following items, which are not supplied:

1 - 12 Volt, 20VA step down AC transformer.

1 - Length of 2-conductor (zip cord) wire for connection of the transformer.

1 - Windows based computer with 16-bit stereo speaker output jack, speakers, and some audio files. (.WAV) 1 - Recordable Module. (ELK-120 or ELK-124)

1 - 8 ohm (15-30 watts recommended) speaker for playback of the recorded messages. (if desired)

Refer to Figure 1 when making the following connections:

1.Strip the ends of the 2-conductor wire and connect one end to the step down transformer and the other end to the AC terminals on the ELK-129 (located under the cover). Plug the transformer into an AC receptacle. To confirm the power connection to the ELK-129, move the power switch to CH1 and look for the Power Led “ON”. Return SW1 to the center "OFF" position.

2.Always be sure SW1 is off before making any connections to the ELK Recordable Module or the ELK-129 interface. Plug the 5-pin ribbon cable onto the polarized connector J1 on the ELK-129. Plug the other end onto the Programmer input of the Recordable Module. (Refer to the Recordable Module’s instruction manual for programmer input location)

3.Remove the audio cable from the back of the computer speakers and plug it into the AUDIO IN Jack on the ELK-129. Plug one end of the supplied 6-foot shielded audio cable into the AUDIO OUT Jack. Plug the other end of this cable into the computer speakers, where the first cable was originally plugged. If your speaker cable is wired directly to the speaker with no jack, plug the speaker cable into AUDIO OUT and connect the 6-foot shielded cable between the computer and

AUDIO IN.

4.Connect a speaker (8 ohms, 15-30 watts recommended) to the speaker terminals of the Recordable Module. Adjust the module’s volume control to a minimum level before turning on the ELK-129.

5.When programming an audio file from the computer, into the Recordable Module, make sure to disable the on-board microphone on the Module. Refer to the Recordable Module’s instruction sheet for location of the on-board microphone jumper. Make sure your computer’s microphone is either off, unplugged, or muted. This will prevent room noises from being recorded along with your messages. Make sure jumper JP2 is set to “Repeat” mode (single play disabled).

6.To prevent short circuits, keep the units away from metal surfaces while power is applied. To prevent electrical noise (EMI) from being induced into the recording, keep the Recordable Module and the ELK-129 as far away as possible from sources of electrical noise such as video monitors and transformers.

7.Place SW1 on the ELK-129 to the CH1 position. For ELK-120 or 124 version 2 Recordable Modules, also move DIP switch #1 to the ON position. Adjust the Recordable Module’s volume control until you hear the default channel 1 mes- sage playing at a comfortable level. If channel 1 has been erased, you may not hear anything at all.

8.Once you have confirmed that the Recordable Module and the ELK-129 are properly connected, you are ready to begin the programming process (you may turn off CH1 or DIP sw #1 for now).

129 specifications

Elk 129 is a sophisticated and versatile embedded computing platform designed to cater to various application needs across different industries. With its robust architecture and a range of advanced features, Elk 129 is engineered for performance, reliability, and efficiency.

At the heart of Elk 129 lies a powerful multi-core processor, ensuring high computational capabilities for demanding applications. The platform supports a variety of operating systems, including real-time operating systems (RTOS) and mainstream Linux distributions, making it suitable for both industrial and consumer applications.

One of the standout characteristics of Elk 129 is its modular design. This enables users to customize the hardware according to specific project requirements. The platform features multiple expansion slots, allowing for seamless integration of additional components such as sensor modules, communication interfaces, and specialized controllers. This flexibility makes Elk 129 a preferred choice for projects that require unique configurations.

In terms of connectivity, Elk 129 offers a comprehensive array of interfaces. It includes USB, Ethernet, SPI, I2C, and GPIO ports, ensuring compatibility with numerous peripherals and enabling straightforward communication between devices. The platform also supports wireless connectivity options, including Wi-Fi and Bluetooth, facilitating remote control and data transfer capabilities.

Elk 129 is engineered with power efficiency in mind. Its advanced power management features include dynamic voltage scaling and low-power operating modes, allowing developers to optimize energy consumption. This is particularly beneficial for applications where power availability is a concern, such as in remote monitoring systems or portable devices.

The platform also emphasizes security, integrating hardware-based security features to protect sensitive data and maintain system integrity. This includes secure boot, encryption capabilities, and trusted execution environments, which are essential for applications in finance, healthcare, and other sectors where data protection is paramount.

Furthermore, Elk 129 supports an extensive development ecosystem, complete with software development kits (SDKs), libraries, and comprehensive documentation. This ecosystem empowers developers to rapidly prototype and deploy applications, reducing time-to-market.

In summary, Elk 129 is a powerful and adaptable embedded computing solution characterized by its multi-core processing, modular design, extensive connectivity options, power efficiency, security features, and robust development support. These attributes position Elk 129 as an ideal choice for a wide range of applications, from industrial automation to smart consumer devices, ensuring that it meets the evolving needs of technology-driven markets.