Overview:

The  Production Intercom BP1 is our standard single circuit beltpack. It has been in production by successive manufacturers for more than three decades. Many minor changes to the circuit board have been made, over time, to accommodate modern components while maintaining its original sound quality and durability. The most recent change was to add a switch on the rear to allow the use of modern headsets with electret microphones. It has resisted every effort to destroy it, either accidentally or deliberately. It’s operation is simple and very intuitive. We’ve never attempted to make it sleeker or more modern looking because that would amount to fixing something that isn’t broken, and probably sacrificing both its durability and ease of repair. And who actually cares what it looks like? That’s why its black.

Features:

• Performance: The BP-1 portable headset station may be worn on the belt or hung on the wall by its sturdy belt-clip. Soft plastic strips on the underside help hold it in place when set on top of a console. The matte black finish minimizes visibility.
• Durability: The ribbed, extruded aluminum case; glass-filled nylon end bezels; internal support system for the PC board; best-quality XLR-type connectors, and; recessed controls, all contribute to the outstanding ability of the BP-1 to withstand rough usage.
• Value: The comparatively low price of the BP-1 is made possible by the minimized assembly cost resulting from simplicity of construction. Simple construction also affords the use of higher quality components, and increases the ease (thus lowering the cost) of servicing.
• Compatibility: The BP-1 is plug-in compatible with Clear-Com® and other popular headset intercom systems

Frequency response has been carefully shaped to optimize both intelligibility and long-term listening comfort. A mic. limiter circuit reduces overload distortion. The high bridging impedance ensures that system and sidetone levels do not vary as other stations are switched in and out of the circuit.

• Plug-in compatible with Clear-com and other headset intercom systems
• Sturdy belt-clip
• Soft plastic strips on its underside (to aid in console top placement)
• Sleek matte black finish
• Bright,long-life 4-segment LED signal light
• Ribbed,extruded aluminum case
• Glass-filled nylon end bezels
• Internal support system for the PC board

 Panel Features:

• The top panel contains controls for switching the microphone on and off, for controlling listening level, and for signaling.
•  They are easily identifiable by touch.
• A recessed, screwdriver-adjust control is provided for varying the level of the user’s voice to be heard in his own earphone (Sidetone).
•  A long-life, extremely bright, 4-segment LED serves as the signal light.
•  The bottom panel provides a 3-pin female XLR for connection to the system;
•  a 3-pin male XLR for looping onwards to the next station,
•  and; a 4-pin male XLR for connection of any standard communications headset with a dynamic microphone

New Features: This BP-1 has an Electret/Dynamic Switch located on the rear panel.When pushed to the "In" position the unit will operate with an Electret Mic.When in the "Out" position the unit will operate with a standard dynamic Mic.

Specifications:

• Power requirement: 24~30 VDC, 10 mA quiescent, 30 mA max. (with signal lamp lit)
• Headphone output: 8~4k ohms acceptable, 200 ohms ideal
• Microphone input: 200~600 ohms, Dynamic
• Sidetone rejection: >50dB
• Audio bridging impedance: 200 ohms, unbalanced
• Size: 3.70 x 4.30 x 2.50 in.
• Weight: 13.5 oz. (0.385kg)