Service broadcasts and emergency announcements through bus and coach Public Address (PA) systems are now part of everyday life. Their direct connection to the user’s hearing aid means that Hearing Loops are the only assistive listening technology suitable for use on public passenger vehicles.
The T14-1 hearing loop driver from Ampetronic offers performance you can rely on:
Product code: T14-1LB: 24V power, WAGO connectors
|Power Supply||24V DC, up to 200W max|
WAGO 769 series detachable 3-way block
|Safety Ground||M6 chassis stud (nut & star washer supplied)|
|Signal Inputs||Input 1 and 2 Pin selectable 2V / 30V / 100V balanced isolated line|
Input connector Audio inputs, status and enables through
WAGO 769 series detachable blocks
|Enable Inputs||Isolated control input per channel|
|Ethernet control I/O||HTML and Telnet control interface|
M12 circular Industrial Ethernet (TCP/IP), 10/100M
|14ARMS (19.8Apk) up to 60 seconds continuous 1kHz|
sine wave, peak >20A
Cont. pink noise >6.6ARMS
|Loop Impedance||Up to 0.49Ω reactive at 1.6kHz, with transformer ratio 1.67:1|
|Drive Voltage||>24VRMS (33Vpk) available at maximum output current|
|Loop Connector||WAGO 769 series detachable 2-way block|
|Status Output||Isolated relay contact and network options (inc. SNMP)|
Monitoring of loop resistance and operating status
|Freq. Response||100Hz to 5kHz ±1.5dB relative to 1kHz at low level.|
|Compression||The AGC is optimised for speech. Dynamic range|
Gain Control >38dB
|Metal Loss Correction||Dual slope configurable MLC up to 4dB per octave|
|Dimensions||Width 295mm, depth 221mm, height 54.5mm excluding connectors|
|Operating temperature||According to EN50155 to OT4|
-40C to +70C (+85C for 10 mins at startup)
The 24V variant of the T14-1 is compliant with automotive regulation
EN/ECE R10 encompassing the requirements of EN 50498:2010.
The T14-1 will enable an Audio Frequency Induction Loop system that meets the requirements of EN 60118-4:2006 to be created, if the system is specified, installed and commissioned in an appropriate manner, including observing Ampetronic instructions.
Standards compliance to IEC 62489-1
T14 amplifiers are designed to form part of a system which can meet all requirements of international loop performance standard IEC 60118-4, and relevant parts of BS 7594. To fully meet requirements of these standards, correct design, installation, commissioning and maintenance are required.
Ampetronic drivers have CE and UL marks to all relevant safety and EMC standards.