Overview
The IED 524 digital microphone station is a 4-button device for initiating audio/visual announcements, messages, and pages with the GLOBALCOM® and vACS Series Announcement Control Systems. It is a network appliance with a unique IP address that simplifies installation and configuration. The 524 features four zone group selection buttons plus a push-to-talk button located on the hand-held microphone.
Just like IED’s other digital microphone stations, the 524 uses a single Ethernet interface for audio and control data. The 524 station is fully compatible with IEEE 802.3af standard for Power over Ethernet (PoE), allowing the 524 to be powered directly from any standard off-the-shelf PoE switch. The processing power for the 524 comes from the onboard 32-bit processor. This powerful processor manages the input buttons, Ethernet interface, audio signal processing, and self-test diagnostics.
This, and all IED LAN-based GLOBALCOM® components, are designed to maximize the benefits of a standard 100 Mbps Ethernet LAN based network, using off-the-shelf switches and structured CAT5e or better cabling. The 524 Digital Microphone Station utilizes CobraNet® technology.
Features
- Standards Utilized
- Full Duplex - IEEE 802.3x
- Fast Ethernet, 100Mbps - IEEE 802.3u
- Data Terminal Equipment Power - IEEE 802.3af via Media Dependent Interface (PoE)
- Connecting Cable
- Digital Audio/Power/Control - CAT5e or better For distances to a maximum of 100 Meters (approximately 300 feet) to the connected switch. Cable installed and tested in accordance with ANSI/TIA/EIA 568B Standards.
Specifications
- Frequency Response: +0, –1.0 dB 22 Hz – 22 kHz, Input Level
- Signal To Noise Ratio: >85 dB 22 Hz – 22 kHz, Input Level
- Maximum Input Signal: +6dBu
- Sample Rate: 48kHz
- Compression Threshold: -15dBu
- Attack Time, 10dB Step: 5m Sec
- Release Time @ 40dB: 15 Seconds
- Release Time @ 10dB: 3 Seconds
- Maximum Output Level: +7dBu
- Nominal Output (10dB Into Compression): +5dBu
- Internal Processing: 32 bit, Floating Point
- Analog-To-Digital Converter, A/D: 24 Bit
