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The Amplifier Terminal Panel Cabinet (ATPC) is a crucial component in audio power amplifier systems, designed to house and manage audio amplifiers and their associated components. It serves as a central hub for the audio system, providing termination points for preamplifier, amplifier, and field wiring, and ensuring continuous operation even during power outages or system faults.
The ATPC's primary function is to provide a robust and organized enclosure for audio power amplifiers, facilitating their installation, operation, and maintenance. It is designed to mount audio power amplifiers within an Amplifier Rack (model ATPC) or other suitable enclosures like the RMDP-1N or FCC enclosure. The cabinet supports various configurations, including single-channel and dual-channel setups, and can accommodate multiple amplifiers depending on the system's power requirements.
A key feature of the ATPC is its ability to provide battery backup, ensuring that the audio system remains operational during AC power failures. This is achieved through an integral battery charger that manages the charging of gel cell batteries, which then supply power to the amplifiers when the main AC power is lost. The ATPC also incorporates a supervisory system that monitors the status of the amplifiers and battery backup, reporting any troubles or faults to ensure system reliability.
The ATPC manages the audio riser and provides connections for the audio distribution card (pre-amp out) at the FCCA panel. It also handles the transfer of audio signals to backup amplifiers in case of a primary amplifier failure, ensuring uninterrupted audio output. The system is designed to be highly flexible, allowing for various amplifier configurations and power levels to meet diverse application needs.
The ATPC supports Dukane 250 watt audio amplifiers, which are 19" equipment rack mountable. The Dukane amplifier delivers 250 Watts (RMS) and operates from 120 VAC, 50/60 Hz, with 24 VDC battery backup. The maximum quantity per channel for the Dukane amplifier is 25. Its rated output power is 250 Watts (180 Watts Nominal), with a max signal input of 1 VRMS. The input impedance is 75K Ohms, and the output impedance is 8 Ohms. The primary power is 120 VAC, 60 Hz, and the battery power is 24 VDC. AC power consumption is 48 Watts (standby) and 700 Watts (full load), while DC power consumption is 0 Watts (standby) and 20 Amps (full load). The dimensions (HWD) are 8.5 x 19 x 15 inches, and it weighs 55 lbs.
The ATPC also includes an integral battery charger capable of charging 40 AH or more gel cell batteries. The battery chargers of multiple ATPs may be connected in parallel to increase charge current. When multiple amplifiers are powered from a single battery source, the ATP charger must be disabled by installing J3 and removing J2 on the APSB terminal board, which is located in the Amplifier Terminal Panel. The external battery charger, model AA33-10-24, is used when the amplifier backup is to be supplied from a single battery source. This external charger is rated at 24 VDC, 160 AH max.
The system supports various power configurations, including:
The ATPC also features an End-Of-Line (EOL) resistor value table for pre-amplifier termination, varying based on the number of amplifiers per channel. For example, 0 amplifiers require a 10K Ohm, 1/2 watt resistor (P/N 260002), while 21-25 amplifiers require a 6.8K Ohm, 1/2 watt resistor (P/N 260047).
The ATPC is designed for ease of installation and configuration. It provides clear termination points for all wiring, simplifying the setup process. The front and rear views of the Amplifier Terminal Panel (ATP) show the various connections and indicators, including power, level adjust, bridging, input, common, and earth. The ATP also includes a "TO NEXT ATP" connection for cascading multiple panels.
The system incorporates a 5-minute alarm backup feature, which ensures that the system remains operational for a short period during power fluctuations or minor faults. This feature is crucial for maintaining system integrity and providing time for corrective actions.
The ATPC is equipped with a supervisory system that monitors various parameters, including AC power loss, battery voltage, battery charger status, and ground faults. Any detected trouble conditions are reported, allowing for prompt troubleshooting and maintenance. The panel will sense a trouble condition when the power relay switches battery power to the input of the power amplifiers.
The ATPC supports the connection of multiple amplifier terminal panels (ATPs) to the FCCA panel for audio distribution. It also allows for the connection of a Universal Riser Supervisory Module (P/N 130057) or a Universal Riser Supervisory Module (P/N 130102) for enhanced supervision.
Maintenance of the ATPC involves regular checks of the system's status and addressing any reported trouble conditions. The troubleshooting section outlines common power faults that can cause a TROUBLE condition, including:
The ATPC's modular design allows for easy replacement of components. The amplifier terminal panel is required to monitor a maximum of two, 250 Watt amplifiers. The following list describes the available connections for each amplifier:
The system also includes provisions for a spare amplifier in the event that a primary amplifier fails. Depending upon the Local Authority Having Jurisdiction, a single backup amplifier may be required for each primary amplifier or a single back up per bank of amplifiers. This ensures continuous operation and minimizes downtime.
The ATPC's design emphasizes reliability and ease of service, making it a robust solution for managing audio power amplifier systems in various applications.
General| Brand | EST |
|---|---|
| Model | 270219 R1 |
| Category | Racks & Stands |
| Language | English |
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