Dateq BCS25 User Manual

BCS25

GEBRUIKSAANWIJZING

USER MANUAL

GEBRAUCHSANWEISUNG

MODE D’EMPLOI

EN

Dateq BCS25 Manual Safety instructions

3

Safety instructions

1 All safety instructions, warnings and operating instructions must be read first.

2 All warnings on the equipment must be heeded.

3 The operating instructions must be followed.

4 Keep the operating instructions for future reference.

5 The equipment may never be used in the immediate vicinity of water; make sure that water

and damp cannot get into the equipment.

6 The equipment may only be installed or fitted in accordance with the manufacturers

recommendations.

7 The equipment must be installed or fitted such that good ventilation is not obstructed in any

way.

8 The equipment may never be installed in the immediate vicinity of sources of heat, such as

parts of heating units, boilers, and other equipment which generates heat (including
amplifiers).

9 Connect the equipment to a power supply of the correct voltage, using only the cables

recommended by the manufacturer, as specified in the operating instructions and/or shown
on the connection side of the equipment.

10 The equipment may only be connected to a legally approved earthed mains power supply.

11 The power cable or power cord must be positioned such that it cannot be walked on in

normal use, and objects which might damage the cable or cord cannot be placed on it or
against it. Special attention must be paid to the point at which the cable is attached to the
equipment and where the cable is connected to the power supply.

12 Ensure that foreign objects and liquids cannot get into the equipment.

13 The equipment must be cleaned using the method recommended by the manufacturer.

14 If the equipment is not being used for a prolonged period, the power cable or power cord

should be disconnected from the power supply.

15 In all cases where there is a risk, following an incident, that the equipment could be unsafe,

such as:

· if the power cable or power cord has been damaged

· if foreign objects or liquids (including water) have entered the equipment

· if the equipment has suffered a fall or the casing has been damaged

· if a change in the performance of the equipment is noticed

it must be checked by appropriately qualified technical staff.

16 The user may not carry out any work on the equipment other than that specified in the

operating instructions.

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Dateq BCS25 manual Introduction

EN

Introduction

The BCS 25 is specifically designed for applications requiring a full-featured mixing console while being
restricted by dimensional and/or financial limits. Post-production rooms, OB vans, on-location transmission
studios and secondary studios are only a few of the possible uses for the BCS 25.

The BCS 25 frame is supplied with 8 input channels (optional with or without equalizer), the build in power
supply and an extensive mastersection with LED PPM's.

Input modules
The universal BCS25(E) input channel features 3 inputs (line 1, line 2 and mic), a gaincontrol, a 3-band
equaliser (option: without) and a balance control. The input signal can be routed to two stereo mix-busses
with the audition and program select buttons. This enables the engineer to set up two different output mixes
or to use the console for two different jobs running simultaneously.
The auxiliary 1 is pre-fader and has a volumecontrol on the module. The auxiliary 2 bus sends the signal
directly to the master section, the signal may be selected pre or post fader.
The cue button enables pre-fade listening of the input source. A fader/button start feature is standard (fader
or button function is set by an internal jumper). The 100 mm fader is not in the audio signal path but only
controls the VCA; this prevents any signal distortion and increases reliability.

Telephone hybrid

There is also a special telephone channel available with integrated analogue telephone hybrid. This channel
can also be used as a remote for an external hybrid. The ON/OFF buttons can be used for the remote
control for the external hybrid.
The BCS26(E) is equipped with an intelligent electronic circuit to generate a mix-minus signal (Dateq’s
unique TDM2). This makes it possible to have more than one hybrid in the mixer.

BCS27 Master module

The master section is extremely well equipped. It has a 40-segment LED VU-meter with peak hold function
that can be linked to PGM out or each of the other sources. In addition the BCS27 has a master fader for
PGM out, an adjustable headphone output for monitoring any signal, level controls for other outputs such as
aux, audition, etc.
Any signal can be selected to the monitor outputs (control room or headphone) by means of the switching
matrix.
The dedicated guest and the presenter outputs have a very practical feature. The engineer is able to send a
different signal mix - than the actual PGM - to each of those two outputs. This enables him/her to perform
simple timesaving 'post-production-during-transmission' type of operations!

Communication between engineer, guest and presenter is completely handled by the console, offering
numerous possibilities. The most interesting one is the ability to rout the communication signal to the PGM
output. This option has been specifically implemented for live on-location (OB) transmissions: it presents a
direct and easy communication channel with the studio engineer while news and commercials are broadcast
from the home base studio!

Product support

If you have any questions concerning the BCS25, its accessories or other products, please
contact:

Dateq Audio Technologies B.V.

De Paal 37 Telephone: [phone]
NL-1351 JG Almere Fax: [phone]
The Netherlands E-mail: [e-mail]
Internet: www.dateq.nl

EN

Dateq BCS25 manual Installation

5

Installing the mixer unit

The BCS25 is supplied as standard without a cabinet or connector cables. It is possible to make
cables for connecting to the Sub-D connectors of the various input and output modules in-house.
Only use connectors with metal cans and shielded cables for optimal HF-rejection.

Installing into a cabinet

The BCS25 frame fits into an opening of 445 x 395 x 110 mm (W x H x D).

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Dateq BCS25 manual BCS25(E) dual line/ microphone input module

EN

BCS25(E) dual line/ microphone input module

The BCS25(E) input module is available with or without 3 band equaliser. The module can handle
up to 3 different signals: 2 stereo line and a mono microphone. Line input 1 and the microphone
input of this module are electronically balanced. Line input 2 is unbalanced but can be turned into
a balanced input by use of an extra pushon balanced line-input module. The microphone input is
equipped with phantom power which can be switched off.

Line 1/ Line 2 Input selector. When the switch is pushed (green LED is

lighted) line 2 is selected.

Mic Input selector. When the switch is pushed (green LED is
lighted) the microphone input is selected, regardless of the

inputselector for line 1 or line 2.

Overload The LED in the mic-switch lights up red when the signal
level anywhere in the module is too high and distortion can

occur (the limit is 6dB under cliplevel).

Gain Volume pre-setting. Range: -46dB to +12dB

High High-tone control (BCS25E only).

Shelving: ± 12dB @ 12kHz.

Mid Mid-tone control (BCS25E only).
Bell-curve: ± 12dB @ 1.3kHz.

Low Low-tone control (BCS25E only).
Shelving: ± 12dB @ 60Hz.

AUD/ PGM Bus-routing switches. When a switch is pushed (yellow LED

is lighted) the signal will be routed to the selected output.

AUX Volume control for AUX1-level. The AUX1-bus is pre-fader.

BAL Balance-control. The signal is placed at the desired position
in the stereo image.

CUE Pre-fader listening. The LED lights up green when the
CUE- function is activated. With an internal jumper the

master-cue function can be (dis-)activated.

ON On-off switch. It is possible to select faderstart, buttonstart
or a combination of both with an internal jumper. The yellow
LED is lighted when the channel is on.

Fader 100mm long volume control. Depending on a jumper-
setting the signal on the AUX2-bus is pre- or post-fader.

EN

Dateq BCS25 manual BCS25(E) dual line/ microphone input module

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BCS25(E) connector board

DB25-F connector

All connections are made on this connector. The function of the various pins can be
found in the table.

BCS25(E) Audio and Control Input / Output (Sub-D 25-pins female)

Pin Function Type

1 Channel on lamp (15V/ 1W max.) (Line 1) Out

14 Common external on lamp/ external CUE (Line 1) D-GND

2 External CUE (Line 1) In

15 External mute In

3 Remote Start; 15V/ 10mA (Line 1) Out

16 GND/ Common external mute GND

4 Remote Stop; 15V/ 10 mA (Line 1) Out

17 Line 2 Audio left -* In*

5 Line 2 Audio right -* In*

18 Line 2 Audio left +* In*

6 Line 2 Audio right +* In*

19 Audio GND A-GND

7 Audio GND A-GND

20 Microphone Audio - In

8 Microphone Audio + In

21 Audio GND A-GND

9 Audio GND A-GND
22 Line 2 Audio left + In
10 Line 2 Audio right + In
23 Line 1 Audio left - In
11 Line 1 Audio right - In
24 Line 1 Audio left + In
12 Line 1 Audio right + In
25 Audio GND A-GND
13 Frame GND Frame

*: These inputs are available when the optional balanced input module, or the RIAA-

correction amplifier are inserted. The line 2 unbalanced inputs are to be discarded.
When a RIAA-correction amplifier is mounted use pins 6 and 18 for the signal. Pins 5 and
17 are internally connected to the ground.

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Dateq BCS25 manual BCS25(E) dual line/ microphone input module

EN

Phantom power

Non-dynamically microphones usually need an external power supply for its built in pre-amplifier.
If this power has to be supplied by the BCS25, place jumper J1 in the ‘ON’ position. +48Vdc will
be supplied to both signal wires related to the cables shielding.

Jumper J1 is situated on the left side of the bussconnector. The factory default setting for this
jumper is ‘OFF’. See picture below:

Dynamically microphones don’t need a phantom power supply. When the correct cables are used
it will not damage the microphone when the phantom power supply is turned on. So it is not really
dangerous to turn the phantom power on for all types of microphones.

Faderstart/ buttonstart

The BCS25(E) module is able to remote start connected equipment by faderstart, buttonstart or a
combination of these two options. By changing jumpers you easily select one of these settings.
The jumpers for remote start settings can be found at the main PCB above the bussconnector
(jumper J8 and J9, see drawing).

Jumpers J8 and J9 select the type of operation. It is possible to choose between faderstart (figure

1), buttonstart (figure 2) or the fader-switch combinaton (figure 3).

Fig. 1

Fig. 3

Fig. 2

EN

Dateq BCS25 manual BCS25(E) dual line/ microphone input module

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FADER, SWITCH COMBINATION

When the fader-switch combination is selected the connected equipment can be started in two
different ways:

1. Pushing the startbutton when the fader is closed. The connected equipment will start as soon
as the fader is opened.

2. Opening the fader. The connected equipment will start as soon as the button is pressed

To start the connected equipment 2 conditions have to be fulfilled. When just one of the
conditions is fulfilled the LED in the button will light up dimmed to indicate that the equipment will
be started as soon as the fader is opened/ the ON is pressed.
The equipment will stop as soon as the button is pressed or the fader is closed.

Remote control output

The BCS25(E) module can generate a continues or pulsed start/stop signal. Jumper J13 at the
main PCB (above the bussconnector in the middle) selects between a continue- or pulse signal at
the remote output.

In the pulse position the remote outputs will generate a pulse of 100msec. When the continues
mode is selected the on-output will provide a high level signal when the channel is switched on
and a low level signal as soon as the channel is switched off. The remote outputs only work when
line input 1 is selected.

On-air channels

The BCS25 has two on-air groups. This makes it possible to drive an indicator to indicate that the
microphones are opened. The output will be activated when one or more channels that belong to
the on-air group are opened.
With jumper J12 a channel is configured as on-air 1 or on-air 2 channel. When a channel is
configured as on-air 1 the studio output will be muted when the channel is active. The on-air 1
output on the master also will be activated. A channel configured as on-air 2 will not mute the
studio, but only activate the on-air 2 output on the master.

Fig. 4 Fig. 5