Glensound Beatrice B4 Beltpack Intercom

The Glensound BEATRICE B4 is a robust, 4* channel beltpack intercom with crystal clear audio designed for broadcast, theatre and professional audio applications.

It is part of our Beatrice intercom system that utilises the reliable and proven Dante network audio transmission protocol to allow real time distribution of uncompressed audio across standard networks. As such the Glensound BEATRICE B4 is also fully compatible with other manufacturers’ equipment using the Dante protocol.

The Glensound Beatrice B4 is also AES67 compliant.

This small desktop unit was deigned to be very easy to use for the operator and simple to setup for the technician. It includes all the basic functionality required for small intercom systems and none of the overly complex installation requirements normally associated with large systems.

Features

4 Channels 
One single user connected to the unit can listen and communicate with 4* separate locations on the network. Depending upon how the Dante network has been routed the incoming audio circuits and outgoing circuits can be different locations. 
PLEASE NOTE THERE IS A LIMITATION TO INCOMING NETWORK STREAMS SEE ‘*’

Dante Routing & Partyline 
Audio routing to/ from other devices is setup using Dante controller which allows for point to multipoint routing on outgoing circuits (but only 1 single incoming circuit for each of the 4 channels). An inbuilt partyline facility allows any of the 4 incoming circuits to be routed to any of the 4 output circuits making both simple partyline and more complex group circuits easily configured.

External Mic Input 
A good quality, clear sounding microphone amplifier designed for communication purposes is fitted which also has the benefit of a compressor/ limiter circuit to help keep levels and intelligibility consistent even when the operator gets overly excited. Twelve Volt Phantom power is also available and can be turned on/ off as required.

Volume, Panning & Incoming Levels 
The front panel features an easy to use volume/ setup control. This multifunctional control provides day to day operational control of: 
A) Overall volume control (just turn the knob) 
B) Incoming channel level (push the speak key and turn the knob simultaneously) 
C) Panning (push the speak key and push and turn the knob simultaneously)

PoE Powered 
The Beatrice B4 is powered via the Ethernet cable by standard PoE (Power over Ethernet), which can be supplied by an external PoE switch or a midspan power injector.

Headphone Output 
One of our unique headphone amplifiers are fitted to the Beatrice D4, these allow either low or high impedance headphones to be used and automatically adjust the output level to match the impedance of headphones in use. The headphone amplifier is stereo and sources can be panned to left or right ears as desired. The unique headphone amplifier can also drive mono earpieces from its stereo output without any performance issues. Headphone connection is via a standard 6.35mm TRS jack socket located out the way on the rear panel.

Optional Multipin XLR Headset Connector 
As standard the Beatrice B4 is fitted with a normal 3 pin balanced XLR socket for the microphone input and a 6.35mm (1/4") TRS jack socket for the headphone output. Optional single connector 4 and 5 pin XLRs carrying both mic and headphone circuits can be factory fitted wired to any of the industry standards for connection to customers’ preferred headsets.

Call Function 
A simple call function is inbuilt allowing the operator of one unit to call/alert other users that they want to communicate with them. To call another user the operator double taps the speak key of the channel they want to call, this then flashes a bright yellow call LED on the other users keypanel, which continues to flash until the call is answered. As well as flashing a LED at the receiving end of the call an audible ‘beep’ can be set to alert the user that an incoming call has been placed to them.

Display for Setup 
To make setup of the unit easy and intuitive a display is provided on the front panels. This display provides a simple menu system for setting up such items as: Button Configuration Input Type (Mic/ Line) Microphone Gain Phantom Power On/ Off Sidetone Level (Own voice in own headphones) Partyline/ Loop Through Mode Mixing/ Cutting of Partyline when User Speaks.

Presence Indicator 
Each channel has it’s own red LED that acts as a presence detector on the incoming audio circuit. When audio is detected the LED is lit and it stays lit for a short period after the incoming audio stops.

Small and Robust 
The Beatrice B4 is manufactured using lightweight but strong aluminium. It has laser etched aluminium front & rear panels and powder coated aluminium sides. The form factor has been carefully designed to be as small as the internal electronics allow whilst keeping user buttons, microphone and headphone output ergonomically positioned for optimum user experience. Weighing in at just 850g it is light enough to easily transport and at just 92 x 164 x 39mm it won’t get in the way.

Specs

* FOUR INCOMING AUDIO CIRCUITS 
This device uses Audinate’s Ultimo Chipset.This chipset can receive 4 incoming audio channels each at 48kHz. However this chipset can only receive these 4 audio channels from a maximum of 2 network locations. 

NETWORK/ Dante Interface

Physical Interface: 1 off RJ45 Neutrik Ethercon
Audio Sample Frequency: 48kS/s
Transfer Rate: 100Mbps
Dante Chipset: Ultimo UXT-01-004 (Note: Audinate recommend no more than 10 Ultimo chipsets on one network UNLESS another Dante device such as the Brooklyn Module (found in 8 channel Beatrice/ Dark units), is on the same network)
AES67 Compliant: The Audinate Ultimo chipset used is AES67 compliant 

AUDIO

Mic Gain Range: +60 to +20dB 
Phantom Power: 12 Volts 
Equivalent Input Noise: -110dB (20Hz to 20kHz A weighted 300 Ohms)
Headphone Impedance: 32 - 1000 Ohms
Max Headphone Output Level: +10dB into 600 Ohms 
Headphone Connector: 6.35mm (1/4") TRS socket, can be safely connected to TS mono jack plug
Band Pass Filter: 50Hz to 15kHz

CALL CIRCUIT

Inband Calling Frequency: 20kHz
Amplitude: -20dBFs
Duration Of Signal: 2 seconds
Compatibility: All Glesnound Beatrice units and Studio Technologies

POWER

Power Over Ethernet (PoE): 48 Volts
Consumption: 5 Watts

PHYSICAL

Mechanics: All aluminium with laser etched anodised panels and light textured black powder coated sides
Size: 92 x 164 x 39 mm (W x D x H)
Weight: 850g (1.9lb)
Shipping Weight: 2.35Kg
Shipping Size: 310x260x90mm
Shipping Carton: Rugged export quality cardboard carton

INCLUDED ITEMS

Handbook: Physical A5 (Download .pdf also available)
Network Cable: 2 meter RJ45 to R45 cable

OPTIONAL ITEMS

Black shoulder strap printed with Glensound logo