Redback A 5138 User manual

Redback® A 5135 Four Input MIcrophone Hub
Operating Manual
A 5135 Four Input Microphone Hub
A 5138 Microphone Preamp Wallplate
Overview
The Redback®A 5135 Microphone Hub is specically designed for small supermarket applications where industry standard
supermarket 5 pin XLR microphones are used. The Hub has provision for a background music (BGM) source using standard
dual RCA inputs. The BGM input is muted when any of the microphone inputs beomes active. A pre-announcement chime
which is DIP switch selectable is available when the PTT function is activated by a microphone connected to any A 5138
microphone wallplate.
The A 5138 wallplate accepts a 5 pin balanced XLR microphone input (such as the Altronics C 0325 or C 0327) and converts
the signal to a balanced high level output. The high level output signal is carried via Cat5e cable, (suitable for distribution up
to 300m without interference) back to the A 5135 Hub. Up to four wall plates can be connected to the one Hub with each
input congurable to either VOX or PTT muting.
Two modes of microphone priority are selectable via the DIP switches on the rear of the A 5135:
Cascade: Input 1 overrides 2-4, Input 2 overrides 3-4, Input 3 overrides 4.
FIBD: First In Best Dressed - Regardless of which input is being used, it automatically blocks out all other inputs.
A Busy LED on the A 5138 indicates when a wall plate has been overridden by another active wallplate.
The A 5135 Hub has a dedicated input for each wall plate, with front mounted volume controls for each input. Active LED’s
and VOX sensitivity trimpots are available on the front of the A 5135 for each input. The pre-announcement chime and
background music (BGM) volumes are also located on the front for ease of access. A line level (1V) dual RCA output and a
balanced XLR output (line level) are included for output to an amplier.
The Hub is powered by 24V DC from the supplied plugpack and the A 5138 wall plates receive power via the Cat5e cable
from the A 5135.
User manual revision number: 1.0 09/04/2019
A 5138
A 5135

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Redback® A 5135 Four Input MIcrophone Hub
CONNECTIONS Figure 1 illustrates a typical wiring conguration for the A 5135 Hub. In this example the line output is fed into the line input of the system amplier. Switches 1 and 2 of SW1 are both set to ON (see DIP switch settings for more details). Switch 1 enables the PTT (Push To Talk) muting on the microphones connected to the A 5138 wall plates. Switch 2 enables the microphone priority to Cascade which signies when the microphone on input 1 is activated it will override inputs 2-4, Input 2 will override inputs 3-4 and Input 3 overrides input 4. Switch 1 of SW2 is set to ON to enable the pre-announcement chime on the microphones. With this set ON any time a microphone PTT switch is used a pre-announcement chime will be active.
Line Mic
L R
OUTPUT +
–
2 1
3
SYSTEM AMPLIFIER
(Maximum 300m) (Maximum 300m)
24VDC
Input
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24VDC
Input
+_Line Out
Balanced
Out
L
R
L
R
1 2 3 4
SW 1
1 2 3 4
SW 2
Wall Plates
3 41 2
BGM In
+
-
1 2 3 41 2 3 4
TUNER
REDBACK
(Maximum 300m) (Maximum 300m)
O N

Redback® A 5135 Four Input MIcrophone Hub
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Redback® A 5135 Four Input MIcrophone Hub
A 5135 DIP Switch Settings
The DIP switches on the rear of the unit congure the Priority mode, the muting options and enable the Pre-announcement
Chime.
Note: The DIP switches are ON when they are in the down position.
SW1
Switch 1 is set ON to enable PTT (Push To Talk) muting and OFF to enable VOX (Voice Operated Switch) muting
Switch 2 is set ON to enable Cascade Mic Priority and OFF to enable FIBD MIc Priority
Switch 3 Not Used
Switch 4 Not Used
SW2
Switch 1 is set ON to enable the Pre-announcement Chime
Switch 2 Not Used
Switch 3 Not Used
Switch 4 Not Used
A 5138 Wall Plate
The A 5138 Wall plate shown below has a standard 5 Pin XLR connector for connection of microphones with PTT switches.
This connection is ideal for typical supermarket microphones such as Altronics C 0325 or C 0327 as shown below. The low
output level of the microphone is converted to a high level output which is fed down the Cat5 cable to the A 5135. The
output level can be adjusted by the volume control.
Microphone Cable Connections
The wiring details when connecting a balanced 5 pin XLR microphone with PTT switch to the A 5138 Microphone Preamp
Wallplate are shown below.
PIN 1 - Earth/Gnd
PIN 2 - Balanced Microphone +ve
PIN 3 - Balanced Microphone -ve
PIN 4 - PTT Switch
PIN 5 - PTT Switch
A 5138
C 0325
C 0327
1
2
3
4
5
PTT
BALANCED
AUDIO

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Redback® A 5135 Four Input MIcrophone Hub
A 5135 Specications
BALANCED OUTPUT LEVEL: ........................................... 1V
OUTPUT LINE LEVEL:........................................................1V
BGM INPUT LINE LEVEL: ..................................................1V
OUTPUT CONNECTORS:
Audio Outputs: .......Dual RCA, Euroblock terminals
INPUT CONNECTORS:
Wall Plate Inputs:................................. RJ45 8P8C
24V DC Power :..............2.1mm JACK (centre +ve)
24V DC Power :....................... Euroblock terminals
BGM Input : ........................................... Dual RCA
CONTROLS:
Volume1-4: ...................................... Front Volume
Vox Sensitivity 1-4: ............................. Front Adjust
Chime Volume: .................................. Front Adjust
INDICATORS: ............................... BGM Active, PTT Muting,
VOX Muting, Cascade Mode, FIBD Mode, On
POWER SUPPLY: ...................................... 24V DC @ 1 Amp
DIMENSIONS:≈.................................... 210W x 122D x 44H
WEIGHT: ≈................................................................ 0.4 kg
A 5138 Specications
INPUT MIC LEVEL SENSITIVITY:......................................3mV
OUTPUT CONNECTOR: ...................................... RJ45 8P8C
INPUT CONNECTOR: ..............................5 pin XLR balanced
All Australian made Redback products are covered by a 10 year warranty.
Should a product become faulty please contact us to obtain a return authorisation number. Please ensure you have all the
relevant documentation on hand. We do not accept unauthorised returns. Proof of purchase is required so please retain
your invoice.
Distributed by Altronic Distributors Pty. Ltd. Perth. Western Australia.
Phone: [phone] Fax: [phone] Internet: www.altronics.com.au
RJ45 cabling conguration for system components (586A ‘Straight through’)
System components are connected using “pin to pin” conguration RJ45 data cabling as shown below. When installing
ensure all connections are veried with a LAN cable tester before switching any system component on.
Failure to follow the correct wiring conguration may result in damage to system components.
Troubleshooting
NO Power (Power LED does not illuminate):
Check power supply DC jack is 2.1mm and not 2.5mm size.
Check polarity of 24V DC supply.
Wall plate not operating correctly:
Check RJ45 cabling is correct.
Microphone/Wall Plate not operating correctly:
Check microphone XLR cabling is correct.
586A
1 TX+
2 TX-
3 RX +
4
5
6 RX-
7
8
StraightThrough
(both ends)
Pins Face Upwards
1 TX+
2 TX-
3 RX +
4
5
6 RX-
7
8