AMX Product Information, AXB-VOL3 Specifications, Three line-level audio control channels

Product Information

Product Information

The AXB-VOL3 Three-Channel Volume Control provides three audio volume control channels. Each line-level channel, opto-isolated from system ground, can be configured for balanced or unbalanced line operation. The AXB-VOL3 is programmable for 128 steps of audio level, audio mute, variable ramp speed and level presets. The AXB-VOL3 connects to Axcess control systems using the 4-wire AXlink data/power bus; it can be used for remote or rack mount applications.

DEVICE

Front

AXlink

1

2

3

ON

Device

AXlink LED

DIP switch

Channel LEDs

GND

AXM AXP

PWR

OUT

OUT

GND

IN

IN

GND

OUT OUT GND IN

IN

GND

OUT

OUT

GND IN IN

GND

Rear

AXlink

VOL CHAN 3

VOL CHAN 2

VOL CHAN 1

Volume Channel connector

AXlink connector

FIG. 1 AXB-VOL3 front and rear panel

Specifications

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).
Total Harmonic Distortion:	THD = <.008%
Frequency Response	20 Hz to 20 kHz +/- 1 dB

AXB-VOL3 Three-Channel Volume Control 1