Technical Specifications:
Microphone Input:
- XLR, balanced, low noise
- 15V DC Phantom supply selectable
- Sensitivity: -70dBu
- Overload level -20dBu
Line-Level Input:
- 6.4 mm Jack socket, fully balanced (unbalanced with a mono plug)
- Sensitivity: -30dBu. Overload at +20dBu
- High Impedance Input
- Overload protected
Slave I/O:
- Connection point for AMPETRONIC Phase Shifter, Preamplifiers, etc.
- Can be used as output for recording purposes
- Signal level 1 V RMS (+2.7 dBu)
Preamp Power:
- ±15V DC for powering AMPETRONIC Microphone Preamplifiers and external processors
Metal Loss Corrector:
- This control permits correction of system frequency response when losses occur due to metal in the building
- Loss adjustment is adjustable from 0 to 3 dB per octave, using 1 kHz as constant gain frequency
- This does not compensate for the power loss caused by the metal
Compressor / AGC Control:
- 36 dB control, with attack / decay time constants optimized for speech
- Front panel LED indication in 6 dB increments
Output Current:
- 7 Amp peak. Absolute peak current >10 A
- Front panel measurement by PPM response metering in 2dB increments
Output Voltage:
- Greater than 19 V peak, to enable good frequency response for larger loops
- Patented circuitry to prevent clipping, ensuring full compliance with EMC regulations
Area Coverage:
- Nominal area is a rectangular loop 250 m² / 2600 ft²
- Losses due to metal or unusual loop position may reduce the area of coverage
Loop Impedance:
- Designed for single-turn loops
- DC resistance between 0.3W and 1.2W nominal
Loop Condition Testing:
- When power up the resistance of the loop is tested
- Resistance must be between 0.25W and 3W for the equipment to reach and active state
- Additional testing is performed for high loop resistance during normal operation using the normal audio signal
- A front LED panel indicates loop error
AC Power Input:
- 110-120 Volt AC, 50 - 60 Hz or 230 Volts AC, 45 - 65 Hz
- 120 VA Max power consumption
- Fuse: 250V 0.63A(T)
Ventilation/Cooling:
- Forced air ventilation is used with a side intake and rear exhaust
Dimensions:
- Width: 430 mm / 17 in
- Height: 44 mm / 1.75 in
- Depth: 220 mm / 8.7 in
- Rack mountable in 1U space
- Rack mounting brackets supplied
- Wall mounting optional using WM252 mounting hardware
The AMPETRONIC ILD252 Induction Loop Driver carries a full 5 year warranty.
Copyright © 1999 AssistiveAudio. All rights reserved.
Information in this document is subject to change without notice.
Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.