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Installation

3

AXB-VOL3 Three-Channel Volume Control

Installation

DIP Switch Settings

Use the device DIP switch to set the AXB-VOL3 AXlink device number. You can set it as one of 

255 devices in an Axcess control system. Set the device number with the total of all ON (down) 

switches. As an example, the DIP switch below defines Device 128.

The device number takes effect only upon power-up. If you later change the device number, remove 

and reconnect the AXlink connector to enter the new device number into memory. AMX standard 

device numbers are assigned as follows:

 

Cards are 1 through 25.

 

Boxes are 96 through 127.

 

Panels are 128 through 255.

The AXB-PCCOM emulates a touch panel when set in the panel range.

Wiring

Preparing and connecting captive wires

1.

Strip 0.25 inch of wire insulation off all wires.

2.

Insert each wire into the appropriate opening on the connector according to the wiring 

diagrams and connector types described in this section.

3.

Tighten the screws to secure the wires. Do not tighten the screws excessively; doing so may 

strip the threads and damage the connector.

Wiring guidelines

The interface requires a 12 VDC power to operate properly. The interface uses a PSN2.8 power 

supply. The Central Controller supplies power via the AXlink cable or external 12 VDC power 

supply. The maximum wiring distance between the Central Controller and interface is determined 

by power consumption, supplied voltage, and the wire gauge used for the cable. The table below 

lists wire sizes and maximum lengths allowable between the VOL3 and Central Controller. The 

maximum wiring lengths for using AXlink power are based on a minimum of 13.5 volts available at 

the Central Controller’s power supply.       

Device DIP Switch Settings

Position

1

2

3

4

5

6

7

8

Value

1

2

4

8

16 32 64 128

Wiring Guidelines at 230 mA

Wire Size

Maximum Wiring Length

18 AWG

510.31 feet (155.54 m)

20 AWG

371.29 feet (113.17 m)

22 AWG

201.29 feet (61.35 m)

24 AWG

126.88 feet (38.67 m)

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Summary of Contents for AXB-VOL3

Page 1: ...instruction manual AXlink Bus Controllers AXB VOL3 Three Channel Volume Control ...

Page 2: ... liability applies whether damages are sought or a claim is made under this warranty or as a tort claim including negligence and strict product liability a contract claim or any other claim This limitation of liability cannot be waived or amended by any person This limitation of liability will be effective even if AMX Corporation or an authorized representative of AMX Corporation has been advised ...

Page 3: ...ntents Product Information 1 Specifications 1 Installation 3 DIP Switch Settings 3 Wiring 3 Preparing and connecting captive wires 3 Wiring guidelines 3 AXlink connector 4 Volume channels 1 3 connectors 4 Programming 5 Channel Settings Commands 5 Levels 5 Send_Commands 6 ...

Page 4: ...ii AXB VOL3 Three Channel Volume Control Table of Contents ...

Page 5: ...k mount applications Specifications FIG 1 AXB VOL3 front and rear panel AXB VOL3 Specifications Three line level audio control channels Line operation Balanced or unbalanced Audio ground Audio ground opto isolated from system ground Nominal input level 10 to 4 dBm Max input output level 16 dBm Volume level resolution 128 volume level steps 5 dB per step Attenuation 72 dB at full attenuation mute T...

Page 6: ...is On Device DIP Switch An 8 position DIP switch used to set the AXlink device number for the AXB VOL3 Channel LEDs Red channel LEDs 1 3 The LEDs individually light indicating a change in chan nel levels Rear Panel Components AXlink connector 4 pin captive wire connector receives power and information via the AXlink and AXlink Central Controller Volume Channel connectors 6 pin captive wire connect...

Page 7: ...the wiring diagrams and connector types described in this section 3 Tighten the screws to secure the wires Do not tighten the screws excessively doing so may strip the threads and damage the connector Wiring guidelines The interface requires a 12 VDC power to operate properly The interface uses a PSN2 8 power supply The Central Controller supplies power via the AXlink cable or external 12 VDC powe...

Page 8: ... for unbalanced or balanced line operation as shown in FIG 3 FIG 2 AXlink data power connections FIG 3 Volume Channels 1 3 Connector wiring diagrams PWR AXP AXM GND PWR AXP AXM GND AXB VOL3 Control system GND IN IN GND OUT OUT Unbalanced IN Jumper IN to GND Unbalanced OUT GND IN IN GND OUT OUT Balanced IN Balanced OUT Optional 600 ohm resistor can be added for impedance matching if required ...

Page 9: ...2 up 2 Ramps channels 1 and 2 down 8 Ramps channel 2 down 3 Mutes channels 1 and 2 9 Mutes channel 2 4 Ramps channel 1 up 10 Ramps channel 3 up 5 Ramps channel 1 down 11 Ramps channel 3 down 6 Mutes channel 1 12 Mutes channel 3 Ramping a volume channel while the mute channel is on will NOT automatically turn off the mute channel will not restore but the ramping will still occur and the volume chan...

Page 10: ...0 Ramps both channels to 50 mid level volume at the current ramp rate Example 2 SEND_COMMAND VOL P1L255T20 Ramps channel 1 to highest level volume in 2 seconds PR Sets the ramp rate of the specified channel s where the time is the time to ramp the full range both down to up and up to down or optionally just down to up or just up to down Syntax SEND_COMMAND VOL P output channel 0 3 R ramp rate 0 25...

Page 11: ...vel to the same as channel 2 SEND_COMMAND VOL P1 P3 Sets channel 1 level to the same as channel 3 SEND_COMMAND VOL P2 P1 Sets channel 2 level to the same as channel 1 SEND_COMMAND VOL P2 P3 Sets channel 2 level to the same as channel 3 SEND_COMMAND VOL P3 P1 Sets channel 3 level to the same as channel 1 SEND_COMMAND VOL P3 P2 Sets channel 3 level to the same as channel 2 Note You cannot use P0 wit...

Page 12: ...ve richardson TX 75082 USA 469 624 8000 800 222 0193 fax 469 624 7153 technical support 800 932 6993 032 004 1024 12 04 2004 AMX Corporation All rights reserved AMX the AMX logo the building icon the home icon and the light bulb icon are all trademarks of AMX Corporation AMX reserves the right to alter specifications without notice at any time In Canada doing business as Panja Inc ...

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