www.ctpsystems.co.uk
Tel44 (0)1580 891114
B-FW1
Four-Wire Beltpack
The B-FW1 is a compact, battery-powered unit which facilitates controlled
communication between a local operator and a remote endpoint via an analogue
four-wire connection. Level metering and setup are via a bright, crisp OLED display
and internal DSP processing with several configurable options allows tailoring of the
unit to a wide variety of broadcast applications.
Audio I/O
Standard 3-pin XLR connectors (pin 1 = ground, pin 2 = phase/hot,
pin 3 = antiphase/cold) are provided for the four-wire audio input and output.
The output is electronically balanced. If an unbalanced output is required then use
pin 2 as ‘hot’ and pin 1 as ‘cold. Do not short either pin 2 or pin 3 to pin 1 as this will
considerably reduce the life of the battery.
Local headset (or separate HP and mic) are via a 5-pin female XLR headset connector,
the pinout of which is:
p1 – Mic+ input
p2 – Mic- input
p3 – Ground
p4 – HP left output
p5 – HP right output
A small internal loudspeaker may also be enabled for monitoring over a wider area.
Power
The unit requires either a PP3/6F22-size 9V battery (alkaline types strongly
recommended) or an external power supply of nominally 12VDC at 100mA. DC input
is via a 2.1mm 'barrel' connector (centre pin positive, acceptable range 9-16VDC)
