CTP Systems B-FW1 Quick Start Manual
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CTP Systems B-FW1 Quick Start Manual

Four-wire beltpack
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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)
www.ctpsystems.co.uk
Telephone +44 (0)1580 891114

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Summary of Contents for CTP Systems B-FW1

  • Page 1 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.
  • Page 2 OLED makes clear when outgoing comms are active. Setup Several features of the B-FW1 may be customised to user preference. To enter Setup mode, hold the front-panel SEL button for approx. two seconds. The OLED display will show the first adjustable parameter and its current value.
  • Page 3 This parameter disables (OFF) or enables (ON) low-voltage phantom power to the microphone input. The phantom voltage is equal to the higher of the battery voltage or the external DC supply voltage. Mic Highpass Filter (default value: NONE) An optional high-pass filter can be applied to the microphone signal. Selecting SOME activates a first-order filter with a corner frequency of 100Hz.
  • Page 4 Low Voltage Directive: EN60065 Emissions: EN55103.1 Immunity: EN55103.2 WEEE CTP Systems are registered for Business to Business sales of WEEE in the UK. Our registration number is WEE/DF0509VR. RoHS The product conforms to the RoHS Directive 2002/95/EC for restriction of the use of hazardous substances in electrical and electronic equipment.

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