Ayre VX-R User Manual download pdf (Page 12)

Rear view of VX-R amplifier.

An adapter cable must be fabricated to connect the trigger

output of the control component to the AyreLink port of the

VX-R amplifier. The easiest way to do this is to remove the

modular (RJ-11) connector from one end of a two-line

telephone line cord. (This is the type of cord that connects the

telephone set to the wall. A two-line cord will have four gold

contacts on each connector.) Then attach the connector

appropriate for the component with the trigger output. Please

refer to the owner’s manual of that component for details.

The trigger voltage should be between +5 and

+12 volts DC for proper operation. The current

draw of the trigger input on the AyreLink port is

less than 5 mA.

There are two signaling methods that may be used; level and

pulse. The VX-R automatically senses which type of trigger

signal is being sent and responds accordingly.

A positive-going pulse of greater than 250 msec is treated as a

level-sensitive trigger. Shorter pulses are treated as a

pulse-sensitive trigger. The minimum detectable pulse length is

50 μsec.

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Ayre VX-R User Manual Page 12