nstallation manual REV:201107
BREAK-TWA
Twisted Wire Audio System
www.metel.eu 2/6
Description and technical parameters
TWA-M C is an outdoor microphone with symmetrical output directly to the UTP cable
TWA-M C-1VPP is an outdoor microphone with asymmetrical output 1Vpp
TWA-M C-ECT is an outdoor electret microphone 2.2 kΩ, 2.45V C for connection to IP cameras
TWA-TX is a single-channel transmitter with CINCH input, BOX design
TWA-RX 1-channel receiver indoor BOX
BREAK-RX8 is an 8-channel receiver with installation to 19" rack, BIAS outputs
Microphones TWA-MIC, transmitters TWA-Tx and receivers TWA-Rx constitute an integrated converter series for audio signal
capture and transmission. The microphones are omnidirectional and they are supplied in three modifications. The basic
modification is TWA-MIC designed for transmission of audio signal to long distances (up to 1000m) over UTP/FTP Cat5e cable.
TWA-Rx and Rx8 receivers are used for reverse conversion to asymmetric audio signal. TWA-MIC-ECT microphones are
connected, using mic. cable, directly to IP cameras mic. inputs (max. 10m) and modifications TWA-MIC-1VPP are connected
directly to VR audio inputs (max. 100m).
TWA-Tx transmitters are already integrated in TWA-MIC. TWA-Tx transmitters are used for transmission of audio signal from
microphones from other manufacturers.
Note: In case of ground loops in the system we recommend using BREAK-PGS separators.
M C Bandwidth 200 – 15 000 Hz
Supply 10-30 / B AS VDC-AC / VDC / ECT
RX, RX8 Output level max. 4 Vpp
Bandwidth 20 - 20000 Hz
TX, RX / RX8 Supply 10-16 / 10-30 VDC / VDC-AC RX(TX) / RX8 - max. 2 VA
Environment Operational range –40...+75 (–20...+60) oC (M C)
Mechanical Dimensions - w / h / l M C: 34 / 30 / 100 mm
Parameters RX8: 19" / 1U / 22 mm
TX: 34 / 23 / 45 mm
RX: 43 / 30 / 65 mm
SNR min. 60 dB
Consumption max. 120 / 1.5 mA / ECT
Overvoltage protections fine ( ECT without protections )
The producer retains the right to change any technical parameters without previous announcement.
TWA-MIC (1Vpp)
Installation upright
downward
20m
The microphone
sensitivity
-54dB +/-4dB
Recommended maximum
distance from the target
Parameter Value Unit Note
