Baldwin Boxall Adept AR10 User manual

Baldwin Boxall Communications Ltd.
Wealden Industrial Estate, Farningham Road
Crowborough, East Sussex, TN6 2JR
Telephone: [phone] Fax: [phone]
Email: [e-mail]
IAR10
Issue 5.1 10/12/1999
ECR 965
Adept AR10
Operating Instructions

2
AR10 ROUTING MIXER
The AR10 is a routing mixer and enables the routing of up to 10 inputs to any one of 10 outputs. It consists of a
mounting frame and motherboard. Into the motherboard are plugged any of our input modules and the desired
number of ARM output modules.
It is possible to group a number of inputs together using the priority circuits on the input modules. The output
from the group can be routed through to the ARM output modules at the desired priority. This is achieved by
using the 2 way DIL switches located on the AR10 motherboard.
Each input module except number 10 is connected to the input of a virtual earth mixer buffer amplifier. This
is via DIL switches section 2 SW2, 4, 6, 8, 10, 12, 14, 16 and 18 see figure 5.
If input group priority is not required the above switches should be set ‘ON’ and all others ‘OFF’. Section 1 of
the above switches allows the output of the input modules to be mixed together in groups. They must only be
fed to one virtual earth mixer by selecting ‘OFF’ the appropriate section 2 of the above switches.
The priority facility between input modules can be selected using SW1, 3, 5, 7, 9, 11, 13, 15 and 17.
Example: If inputs 1, 2 and 3 are required to have priority in a group and an output or input 1 buffer amplifier,
the switches would be set as follows :-
SW SECTION 1 SECTION 2 SW SECTION 1 SECTION 2
1ON ON 10OFF ON
2ON ON 11OFF OFF
3ON ON 12OFF ON
4 ON OFF 13 OFF OFF
5OFF OFF 14OFF ON
6OFF OFF 15OFF OFF
7OFF OFF 16OFF ON
8 OFF ON 17 OFF OFF
9OFF OFF 18OFF ON
Selection of Input Priority
Input Priority is selected using straps between the required pins on the DIL header located on each of the Audio
Routing Output Modules (ARM). Nine Input sources from the input modules are on the lower row whilst the 9
priority destination levels are presented on the upper row. Therefore, to select input 1 at the first priority,
simply strap between input source 1 and priority level 1. Using this technique any input can be selected to any
priority level. Priority level 9 is designated specifically for music signals providing a slow recovery to its
maximum level.
Selection of Priority Type
Basically two types of priority can be set using the two DIL switches mounted on the ARM module, cascade
and equal (1st come, 1st served). Using these switches a combination of both cascade and priority may be
realised. For example if cascade is required on the first three and equal on the remaining five, select cascade
switch 1, 2 and 3 ‘ON’ and all others ’OFF’. Select equal switch 1, 2 and 3 ‘OFF’ and all others ‘ON’.
However if cascade priority is required on all eight select all cascade switches at the ‘ON’ position and select
all equal switches ‘OFF’.
Night Volume Reduction
The output can be reduced to a predetermined level by connecting pin 3 of the 25 way D connector to 0V,
normally using a time switch. This facility is useful to reduce night time - local residence annoyance when
speakers are mounted externally e.g. railway platforms. This reduced level is adjusted using the preset night
volume reduction control mounted on the ARM module.

3
ARM MODULE
Floating Line Output
Rated Output Level : 0dBM (0.775V)
Maximum Output Level : +6Dbm (1.4v)
Output Source Impedance : 130 Ohms
Distortion (1KHz rated output) : Less than 0.1%
Frequency Response -3dB : 30Hz - 20KHz
Output Noise (no input selected ref rated output) : Better than 80dB
Night Volume Level Reduction adjustable from : 0 - 26dB
Module Current Consumption with no inputs accessed : 20mA
Module Current Consumption with 9 inputs accessed : 62mA
AR10 MAIN FRAME
Supply Voltage AC Supply 50 - 60Hz : 220 - 240V
DC Supply : 23 - 30V
Fuse Protection AC 5 x 20mm : 2A (T)
DC 6.3 x 31.75mm : 3A (F)
Battery 6.3 x 31.75mm : 3A (F)
Terminations AC Supply Input : 3 Pin DIN-IEC6A
DC Supply (Battery) : 3 Pin Screw Terminated Connector
Signal Input (10 off) : 240 Deg 5 Pin DIN Locking
Dimensions Depth (Front to Rear) : 380mm (15”)
Width (Rack Mounted) : 428.6mm (19”)
Height : 88mm (3.5”) 2 Unit
Weight : Approx 5 Kgs
The 25 way D connector is mounted at the rear of the ARM module.
PIN FUNCTION
1 Line level 0dBM output balanced
2 Line level 0dBM output balanced
3 Night volume reduction Connect to 0V to reduce output level
4 Priority 9 Select Connect to 0V to select priority 9
5 Priority 2 Monitor output
6 Priority 1 Acknowledge Connects to 0V when priority 1 selected
7 Priority 2 Acknowledge Connects to 0V when priority 2 selected
8 Priority 3 Acknowledge Connects to 0V when priority 3 selected
9 Priority 4 Acknowledge Connects to 0V when priority 4 selected
10 Priority 5 Acknowledge Connects to 0V when priority 5 selected
11 Priority 6 Acknowledge Connects to 0V when priority 6 selected
12 Priority 7 Acknowledge Connects to 0V when priority 7 selected
13 Priority 8 Acknowledge Connects to 0V when priority 8 selected
14 Busy Lamp/relay output Connects to 0V when ARM module is busy
15 0 Volts Common 0V for selection switches
16 + 24 Volts Common + 24V for lamps etc.
17 Priority 1 monitor output
18 Priority 1 Select Connect to 0V to select priority 1
19 Priority 2 Select Connect to 0V to select priority 2
20 Priority 3 Select Connect to 0V to select priority 3
21 Priority 4 Select Connect to 0V to select priority 4
22 Priority 5 Select Connect to 0V to select priority 5
23 Priority 6 Select Connect to 0V to select priority 6
24 Priority 7 Select Connect to 0V to select priority 7
25 Priority 8 Select Connect to 0V to select priority 8

4
OUTPUT MODULES
DIL header to select priority level
10987654321
Zone 1Zone 2Zone 3
10987654321
To other ARM modules SWITCHES AND ACKNOWLEDGE LAMPS
Mic
zone
select zone select zone select
Mic
zone
select
Mic
zone
select
Mic
zone
select
Mic
zone
select
Mic
zone
select
Evac Alert Music
select
25 way D
connector
1
2
3
4
5
6
7
8
9
1st ARM Module
Busy Lamps
Audio to
zone 1 amplifiers
zone busy
1
2
3
4
5
6
7
8
9
2nd ARM Module
1 & 2
6
18
7
19
8
20
9
21
10
22
11
23
12
24
13
25
4
14
Audio to
zone busy
1 & 2
6
18
7
19
8
20
9
21
10
22
11
23
12
24
13
25
4
14
Busy Lamps
zone 2 amplifiers
1
2
3
4
5
6
7
8
9
Audio to
zone busy
1 & 2
6
18
7
19
8
20
9
21
10
22
11
23
12
24
13
25
4
14
Busy Lamps
3rd ARM Module
zone 3 amplifiers
+24V 0V
1109
8
765
43
2
INPUT MODULES
Evac Alert Music Surveillance
317
13 151197
5
1
246810 12 14 16 18
Virtual Earth Mixers
2
1
Busy
Pri 1
2
LK1 LK2 LK3 LK4 LK5 LK6 LK7 LK8 LK9 LK10
To enable remove yellow link
200Hz High Pass Filter
Figure 1 - A Typical System Configuration
SW
SW
mother board
Refer to Fig. 5
DIL switches on

5
R22 R24
C1 R25
C3
ICB
C18
PIN2
IC11 R21 R23 D19
D18
C8
C2
R26
4007UB
NIGHT LEVEL
VR2
C13 IC3 C4
VR1
Preset night volume reduction level
4001B
IC9
4071B
C19
C7
4001B
4016B
D1
987654321 IC10 C21
PRIORITY
LEVEL
INPUT
SRCE
4016B
R40 C5 R32 C16
D16
ON
SW1
C17 R31
D12 D8 D4 R4 R8
C11 C10
R37
TL072
IC12
D14 D10 D6 D2 R6 R10 R14
C22 R12 R16
12345678
IC4
40071B 4001B
IC2 R3 R2
EQUAL
TXR1 C14
R38 R35
R18 RP1 OUPUT LEVEL
VR3
C12
D17 D3
R39 R17
C20
4001B
IC7
IC5
R1
FUSE 1A
IC1
ULN
2803
4078B
C23
RP3
IC6
RP2
ON
SW2
PIN 1
CASCADE
12345678
C24 SURVEILLANCE
Preset surveillance tone level
Master output
level control
DIL header to
select priority level Select equal 1st come 1st serve priority Select cascade priority 24V output fuse to pin 16
of the D connector 25D connector remote zone
selection, acknowledge lamps etc.
BBC LTD PC1090
R36 REG1 TR1 ZD1 R20
R19
C6
R34
R29
R30
R27
R28
D15
D13
D11
D9
D7
D5
R5
R7
R9
R11
R13
R15
C15
R33
C9
Figure 2 - ARM PCB Layout

6
Microphone Console
PreAmplifier
Oscillator
MICSUV
5 pin DIN
connector
INPUT
ACCESS IMP
SURV PIN
Input Modules
AR10
ARM Output Modules
1st Priority
2nd
9th
Master
ARM Module
Input 10
Oscillator
Detector
B
A
1
3
11
23 65
5
To all other
IMP18
Modules
Surveillance
Module
eg IMP18 To other
ARM
Modules
17
5
1
2
25 Way Connector
Figure 3 - Microphone and line Monitoring

7
O N
12
ACS1
0V
IP1A IP1B
Pri
Busy
SW1
ACS2
O N
12
0V
IP2B IP2A
SW2
C1
IC1
R2
C3 C2
R3
C5 R5 C6
LK1
R6 C8 C7
R7
R83
RemoveLK1 - LK10 to select
200Hzhigh pass filter.
1
O N
12
Pri
Busy
O N
12
0V
C11 R10
C13 C12
R11
IC2
C15 R13 C16
LK2
R14 C18 C17 R15
R4 R12
C4 C14
IP3A IP3B
SW4
ACS3
SW3
2
O N
12
Pri
Busy
O N
12
0V
R20 R23 C27 C28 R22
LK3
C26 R21 C25
IC3
C21 R18
C23 C22
R19
C24
3
SW5
SW6
ACS4
IP4B IP4A
O N
12
Pri
Busy
O N
12
0V
R28 R31 C37 C38 R30
LK4
C36 R29 C35
IC4
C31 R26
C33 C32
R27
C34
4
SW7
ACS5
SW8
IP5B IP5A
O N
12
Pri
Busy
O N
12
0V
R36 R39 C47 C48 R38
LK5
C46 R37 C45
IC5
C41 R34
C43 C42
R35
C44
5
SW9
ACS6
SW10
IP6B IP6A
O N
12
Pri
Busy
O N
12
0V
R44 R47 C57 C58 R46
LK6
C56 R45 C55
IC6
C51 R42
C53 C52
R43
C54
6
SW11
ACS7
SW12
IP7B IP7A
O N
12
Pri
Busy
O N
12
0V
R52 R55 C67 C68 R54
LK7
C66 R53 C65 C64
IC7
C61 R50
C63 C62
R51
SW13
ACS8
SW14
IP8B IP8A
O N
12
Pri
Busy
O N
12
0V
R60 R63 C77 C78 R62
LK8
C76 R61 C75
IC8
C71 R58
C73 C72
R59
C74
78
SW15
ACS9
SW16
IP9B IP9A
O N
12
Pri
Busy
O N
12
0V
9
R71 C87 C88 R70
LK9
C86 R69 C85
IC9
C81 R66
C83 C82
R67
C84
SW17
ACS10
SW18
IP10B IP10A
R75 R78 C97 C98 R77
LK10
C96 R76 C95
IC10
C91
R73
C93 C92
R74
10
PRI OUT PRI IN REST. BUSY CHIME ACCESS +24V PA MS 3 2 1
BALDWIN BOXALL COMMUNICATIONS
SEP 1995
PC1091
INPUTS
O
u
t
O
u
t
O
u
t
O
u
t
O
u
t
O
u
t
O
u
t
O
u
t
O
u
t
R86
R85
R84
R87
1
R82
2
R8
C9
D1
REG1
D2 R16
C19
REG2
3 4
D3 R24
C29
REG3
D4 R32
C39
REG4
5 6
D5 R40
C49
REG5
D6 R48
C59
REG6
7
D7 R56
C69
REG7
8
D8 R64
C79
REG8
9
D9 R72
C89
REG9
10
OUTPUTS
TXR1
I/P 1 I/P 2 I/P 3 I/P 4 I/P 5 I/P 6 I/P 7 I/P 8 I/P 9 SURV. +24V 0V
R88
R89
R90
R91
R92
R68
TO FUSE
24VAC
FROM FUSE
+VE
24VAC
D10R79
REG10
C99C100
D17D18
D13 D15 D14 D16
C107
1
2 3 4 5 6 7 8 9
10
11
12
PL1
D12
C102
C106
REG11
C105
R81
R80
C103
D11
C104
C94
REG12
C10 C20 C30 C40 C50 C60 C70 C80 C90
Figure 4 - AR10 Printed Circuit Board Layout
21 345678910
VIRTUAL EARTH MIXERS AND HIGH PASS FILTERS

8
1
Pri Busy
12
Sw 1
12
12
2
3
4
Sw 5
Sw 3
12
12
10
9
Sw 17
Sw 15
2
1
Sw 2
2
1
2
1
2
Sw 4
Sw 6
Sw 8
1
2
1
Sw 18
Sw 16
Section 5-8
1
2
3
4
Virtual earth
mixers
Lk1
Lk2
Lk3
Lk4
High pass
filter @ 200Hz
Lk10
Lk9
Remove link to
select high pass
Input modules
to ARM
output
modules
Fi
g
ure 5 - AR10 Input Confi
g
uration
10
9