Baldwin Boxall Microdrive Manual

Baldwin Boxall Communications Ltd.
Wealden Industrial Estate, Farningham Road
Crowborough, East Sussex, TN6 2JR
Telephone: [phone] Fax: [phone]
Website: www.baldwinboxall.co.uk
Email: [e-mail]
C O M M U N I C A T I O N S
IBVR20
11/02/2000
VIGIL BVR20 - Microdrive
(For use with software issue BVR8.20)
Setup Instructions

VIGIL BVR20 - MICRODRIVE
The BVR20 (Microdrive) is the heart of the Voice Alarm system that accepts all of the audio inputs
and provides the outputs for the whole voice alarm system. Up to 20 audio inputs can be routed
through to up to 20 outputs (zones) in any configuration. The inputs range from any microphone or
line level source to the emergency messages and background music.
The system is modular, and depending on the system requirements different modules are plugged into
the rear of the BVR20.
BVR20 Modules & Brief description of Functions and Features
Module Function
BVRCPU CPU and PSU card: one per BVR20
BVRI4 Quad line input (each with attenuator, compressor, limiter, 5 band equ & chime control)
BVR802 Quad Digital message card, accepts up to 4 OPT402 modules
BVRO2 Dual line output card (each with 6 band equ and option socket for further EQ module)
BVRIO40 40 parallel inputs for zonal access, monitoring, fault i/p & o/p, changeover etc
BVRACO Control interface for faulty amplifier changeover
BVRNCO Control interface for when automatic changeover is not required
BVRCI Control interface for universal zonal access switching, with Ambient noise option
BVRAIO Control interface for Fire Alarm Panel
BVRL20 20 way 3 metre ribbon cable for connecting cards and interface modules
BVRL26 26 way 3 metre ribbon cable for connecting cards and interface modules
The BVR20 provides all of the monitoring functions and displays the system status using a 40 x 2
character LCD display and 5 front panel mounted LEDs.
The unit can be operated in two separate modes depending on the position of the front panel key-
switch.
Under ‘Normal’ operating conditions (i.e. the key is not turned) all advanced functions of the BVR20
are barred to prevent unauthorised changes to the system. The only options available are monitoring
input and output signals through the internal loudspeaker, and viewing the system status pages which
can be scrolled up or down to display the status of the monitored items in the Voice Alarm system.
If the ‘System Configuration’ key-switch is turned the unit is in System Configuration mode and all
functions of the BVR20 can be changed.
The functionality of the Voice Alarm System can be altered in this mode.
As incorrect use of this mode could prevent an Alarm Condition from being detected
we strongly suggest that this mode is not entered unless the user is fully aware of the
system configuration.
If changes are to be made in this mode please refer to the relevant pages of this manual on how to
achieve the changes required.
To discourage leaving the unit in “System Configuration” mode the key cannot be removed from the
switch until it is returned to the “Normal” position.
When the unit is first powered up, various settings and controls will require setting up in the
“Configuration” Mode.
Once these have been set, the internal memory will hold this information. Should mains and/or battery
power loss occur, the settings will remain in the memory.

BVR20 FRONT PANEL CONTROLS AND INDICATORS
COMPLIES
COMMON
SYSTEM
HEALTHY
FAULT
FAULT
ACCEPT
FAULT
RESTART
CPU CPU
12
45
3 6
789
-+0
BS5839
WITH
PART
8
LAMP TEST
SERIALINTERFACE
PAGE PAGE
UP
DOWN
SYSTEM CONFIGURATION
BVR20 MICRODRIVE
AB
C D
EF
G
HIJ K LMN O PQ
R

DESCRIPTION OF FRONT PANEL CONTROLS AND INDICATORS
A ‘System Healthy’ LED Illuminates when no faults are detected.
B ‘CPU Fault’ LED If illuminated a critical CPU failure has occurred. Only Fire Mic 1 ‘All Call’ function will operate as this input
bypasses all CPU control as required by BS5839 pt 8.
C ‘Common Fault’
LEDs
Will flash and a buzzer will sound when a Fault is detected until
“Fault Accept” button (H) is pressed.
After a fault is accepted the buzzer is silenced and the LEDs remain
illuminated until the fault is cleared.
DCPURestartLED Will illuminate when CPU Restart (J) button needs to be pressed. This will occur when the unit is powered up for the first time, but
should extinguish after the restart. Required by BS5839 pt 8
E 40 x 2 LCD Display Main display where system status and setup configuration is shown.
F Loudspeaker Loudspeaker for monitoring input and output signals.
G Buzzer Sounds when a fault is detected, see (C) for more details.
H ‘Fault Accept’ Button Press to accept a fault once detected, see (C) for more details.
I ‘Lamp Test’ Button Press to check front panel LED and buzzer operation. Note: if the system is in a fault condition the green ‘System Healthy’
LED will not illuminate on a lamp test.
J CPU Restart Button Recessed button that enables the CPU to be restarted, see (D) for
more details.
K Data Entry Keypad Numerical keys for entering and changing data.
L & M ‘Page Up’ / ‘Page
Down’ Buttons Press to scroll through Status Pages displayed on the LCD Display.
N‘
!’ & ‘"’ Buttons Press to navigate cursor inside Status Pages.
O Volume Control Press to alter volume of monitor Loudspeaker or Headphones.
P Headphone Socket Socket for Headphones to monitor input and output signals. If
Headphones are connected the internal loudspeaker is muted.
Q‘System Configuration’
Keyswitch
Key-switch to enable System Configuration.
When enabled all functions of the BVR20 can be modified.
The key cannot be removed in the ‘System Configuration’ position.
R ‘Serial Interface’ Feature not available on this software release.

How to View or Change an Output Channel setting.
1. Insert the key and rotate clockwise.
The display will show the software version, in this example 08.20.
------------------------------------------
| BVR 20 VOICE ALARM Version 08.20 06.09 |
| BALDWIN BOXALL COMMUNICATIONS |
------------------------------------------
2. Press the Page down key.
The display warns you that you have accessed the set up program.
------------------------------------------
| *****************WARNING**************** |
| YOU HAVE ACCESSED THE SET UP PROGRAM ! |
------------------------------------------
3. Press the Page down key again.
The display invites you to enter an output channel number 1-31 that you wish to set up.
------------------------------------------
| OUT 00 VOLUME & EQUALISER SETTINGS |
| Enter output no required Press page down |
------------------------------------------
4. Enter the output channels number required using the numbered keys. (If you are selecting an
output channel between 1 and 9, please remember to include a 0 before the output channel
number, i.e. (‘01’).
------------------------------------------
| OUT 01 VOLUME & EQUALISER SETTINGS |
| Enter output no required Press page down |
------------------------------------------
5. Press the Page down key again.
The display will step to the 1st page, current input volume levels 1-10 of output channel 1.
------------------------------------------
| OUT 01 in|01|02|03|04|05|06|07|08|09|10 |
| volume|00|00|00|00|00|00|00|00|00|00 |
------------------------------------------
Note: Input surveillance is sampled from output 1 and therefore associated inputs on output 1 must
be set to a value greater than 05 to prevent input audio faults.
Each output channel has an independent adjustment for the volume level from each input channel.
6. To select the input volume level to adjust, move the cursor along using the arrow keys until it
flashes beneath the input window required. Values between 0-9 may be entered directly using the
numbered keys, note the cursor automatically steps to the next input.
Or using the + or – keys will increase or decrease the value between 00 (silent) and 15
(maximum).

7. Press the Page down key again.
The display will step to the 2nd page, current input volume levels 11-20 of output channel 1.
------------------------------------------
| OUT 01 in|11|12|13|14|15|16|17|18|19|20 |
| volume|00|00|00|00|00|00|00|00|00|00 |
------------------------------------------
The levels are adjusted as before, please refer to 6.
8. Press the Page down key again.
The display will step to the 3rd page, current equaliser settings of output channel 1.
------------------------------------------
| OUT 01 frequency|315|500|1K0|2K0|3K1|6K3 |
| equaliser(dB)|+12|-12|+06|-06|+02|-02 |
------------------------------------------
To select the frequency to adjust, move the cursor along using the arrow keys until it flashes
beneath the frequency window required. If you wish to set the value to 0 (flat), simply press the 0
key, note the cursor automatically steps to the next frequency setting. Or using the + or – keys will
lift or cut the value between +14 and -14.
9. Press the Page down key again.
The display will show the 4th page, current chime, surveillance and sensor settings.
------------------------------------------
| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 00|Off |Sens 00 |
------------------------------------------
↑
To adjust the chime volume. Ensure the cursor is flashing beneath the chime volume window.
Values between 0-9 may be entered directly using the numbered keys, note the cursor
automatically steps to the surveillance out level setting. Or using the + or – keys will increase or
decrease the value between 00 (silent) and 15 (maximum).
Note: Under normal operating conditions the loudspeaker line surveillance signal is pulsed 1
second on in every 30 seconds. This allows the fault to be announced within 100 seconds to
conform to BS5839 Pt 8. When the above page (P4) is selected, the surveillance signal is
continuous to enable output level setting.
------------------------------------------
| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 00|Off |Sens 00 |
------------------------------------------
↑
To select surveillance, move the cursor along until it flashes beneath the surveillance out window
shown above.
If surveillance is not required press 0 and the display will show 00.
If surveillance is required press 9 and the display will show 09.
The loudspeaker lines must be terminated with end of line units BEL1.
------------------------------------------
| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|Off |Sens 00 |
------------------------------------------
↑
Move the cursor along using the arrow keys until it flashes beneath the surveillance frequency

window.
If surveillance is not required press 0 and the display will show Off. This will disable the
associated loudspeaker line faults
If surveillance is required press and release the + key until you have selected the required
frequency and mode.
Note for normal surveillance operation only use 30Hz or 20KHz.
Example 1: Frequency 30Hz, loudspeaker line A monitored only
------------------------------------------
| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|30Hz A |Sens 00 |
------------------------------------------
Example 2: Frequency 20KHz, loudspeaker lines A and B monitored.
------------------------------------------
| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|20K A+B |Sens 00 |
------------------------------------------
Example 3 Frequency 20KHz, loudspeaker line A and reserve amplifier monitored.
------------------------------------------
| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|20K A+Res |Sens 00 |
------------------------------------------
Example 4 Frequency 20KHz, loudspeaker line A, line B and reserve amplifier monitored.
A&B return signals.
------------------------------------------
| OUT 01|CHIME|SURV (A=09 B=09)|ANS (-00 |
| | 00|Out 09|20K A+B+Res|Sens 00 |
------------------------------------------
↑
If surveillance is selected, move the cursor along until it flashes beneath the surveillance out
window.
Adjust the level using the + or – keys so that A and B BEL1 return signals =09, this is the typical
return value for a 10 Volt loud speaker line surveillance signal. If you have difficulty in obtaining
a return signal of 09, please check the loudspeaker line
Ambient noise sensor, only available outputs 1-16.
Volume reduction factor ( –12 minimum output), (--00 maximum output).
↓
------------------------------------------
| OUT 01|CHIME|SURV (A=00 B=00)|ANS (-00 |
| | 00|Out 09|20K A+B+Res|Sens 00 |
------------------------------------------
↑
Move the cursor along until it flashes beneath the sensor window, shown above.
If ambient noise sensing is not required or the maximum output is being set, press 0 to disable it.
This will also prevent the associated sensor fault being announced.
When the maximum levels have been set, using the + key slowly increase the value until the

loudspeaker level follows the ambient noise.
In theory, if the ambient noise is at its loudest, the announcements should remain around 10dB
above the ambient level. The sensitivity is adjustable from 01 and 15. Once set, the loudspeaker
volume will automatically adjust to the ambient noise in that zone, from maximum and 20dB
below maximum. Therefore if the sensor does not sense a signal, the output will be 20dB below
the maximum setting.
Pressing the Page up key enables you to step to the previous page
Pressing the Page down key enables you to step to the next page, in this example Output 2 page 1
------------------------------------------
| OUT 02 in|01|02|03|04|05|06|07|08|09|10 |
| volume|00|00|00|00|00|00|00|00|00|00 |
------------------------------------------
Note: Once settings have been adjusted, always return the key to the anti clockwise position to
prevent accidental adjustment.

How to View or Change an Input Channel setting
1. Insert the key and rotate clockwise.
The display will show the software version, in this example 08.20.
------------------------------------------
| BVR 20 VOICE ALARM Version 08.20 06.09 |
| BALDWIN BOXALL COMMUNICATIONS |
------------------------------------------
2. Press the Page down key.
The display warns you that you have accessed the set up program.
------------------------------------------
| *****************WARNING**************** |
| YOU HAVE ACCESSED THE SET UP PROGRAM ! |
------------------------------------------
3. Press the Page down key again.
The display invites you to enter an output channel number 1-31 that you wish to set up.
------------------------------------------
| OUT 00 VOLUME & EQUALISER SETTINGS |
| Enter output no required Press page down |
------------------------------------------
4. Press the Page down key again.
The display invites you to enter an input channel number 1-20 that you wish to set up.
------------------------------------------
| IN 00 VOLUME & EQUALISER SETTINGS |
| Enter input no required Press page down |
------------------------------------------
5. Enter the input channels number required using the numbered keys. (If you are selecting an input
channel between 1 and 9, please remember to include a 0 before the output channel number, i.e.
‘08’) ------------------------------------------
| IN 08 VOLUME & EQUALISER SETTINGS |
| Enter input no required Press page down |
------------------------------------------
6. Press the Page down key again.
The display will step to the 1st page, current volume and equaliser setting of input channel 8
------------------------------------------
| IN 08|VOL|HP|BASS|600|1K0|2K5|TREB|MODE |
| | 00|00| +12|-12|+06|-06|+12 | 00 |
------------------------------------------
To adjust the volume. Ensure the cursor is flashing beneath the VOL window. Values between 0-9
may be entered directly using the numbered keys, note the cursor automatically steps to the HP
window. Or using the + or – keys will increase or decrease the value between 00 (minimum -12db)
and 15 (maximum 0dB).
To adjust the 200Hz high pass filter. Move the cursor along until it flashes beneath the HP setting.
Values between 0-9 may be entered directly using the numbered keys, note the cursor
automatically steps to the BASS window. Or using the + or – keys will increase or decrease the
value between 00 (filter in, 12dB/oct) and 15 (filter out).

To adjust the 5 band equaliser. Move the cursor along until it flashes beneath the frequency
required.
If you wish to set the value to 0 (flat), simply press the 0 key, note the cursor automatically steps to
the next window.
Or using the + or – keys will lift or cut the value between +14 and –14.
Input surveillance and busy relay output.
------------------------------------------
| IN 08|VOL|HP|BASS|600|1K0|2K5|TREB|MODE |
| | 00|00| +12|-12|+06|-06|+12 | 00 |
------------------------------------------
↑
Mode 00 Input surveillance off. Busy output off.
Mode 01 Input surveillance on. Busy output off.
Mode 02 Input surveillance off. Busy output on.
Mode 03 Input surveillance on. Busy output on.
If this input channel is used for an emergency message or microphone the signal path should be
under surveillance and mode 01 or 03 should be used. This will enable associated input channel
faults.
Each output channel has a volt free change over relay contact that may be used to operate external
busy indicators but is only active when modes 02 or 03 are selected.
To set the mode. Move the cursor along until it flashes beneath the MODE window and using the
numbered keys enter your choice 0 to 3.
7. Press the Page down key again.
The display will step to the 2nd page, current attenuator, compressor and chime settings for input
channel 8 ------------------------------------------
| IN 08|ATTENUATOR| COMPRESSOR |CHIME |
| |.00|....00|Off |Off |
------------------------------------------
| fine | coarse |
The maximum input sensitivity without attenuation is 80mV (-20dBM). However the gain may be
reduced using a fine and coarse attenuator.
The fine provides 15dB of attenuation in approximately 1dB steps and the coarse provides 30 dB
in 2dB steps. Setting the attenuator correctly will prevent overloading the input stage and easier
adjustment of the system.
If an input of 775mV (0dBm) is required than simply attenuate the input by 20dB by setting the
coarse to 09.
To set the input attenuator, move the cursor along until it flashes beneath the desired attenuator
window.
Values between 0-9 may be entered directly using the numbered keys. Note the cursor
automatically steps to the next window. Or using the + or – keys will increase or decrease the
value between 00 (no attenuation) and 15 (maximum attenuation)
Input dynamic compressor or limiter may be introduced to prevent overloading and assists in
maintaining a constant output volume if several operators use a microphone or music with wide