DCB PAS v2 Kullanıcı Kılavuzu - Sayfa 4

Anahtar DCB PAS v2 için çevrimiçi göz atın veya pdf Kullanıcı Kılavuzu indirin. DCB PAS v2 17 sayfaları. Priority audio switch

Chapter 1

Introduction

This chapter provides an overview of the PAS features and capabilities.

The Priority Audio Switch (PAS) is designed to be installed between a transmitter site and

two control operator positions so they can share a single transmitter. The PAS takes in two

4-wire audio lines each with a Push-to-Talk (PTT) lead where PTT is activated by shorting

this lead to ground. The ports are designated as Priority and Secondary. The Priority port

will seize control of the audio channel when its PTT lead is shorted to ground, otherwise the

Secondary ports audio channel and PTT state are passed through to the output port.

The PAS contains two completely isolated instances of the priority switching function.

The standard PAS is powered by 48VDC, which matches most telco systems. External

power supplies are available for AC or other DC power operations.

Receive audio and other return leads from the transmitter are always passed back to both

controllers.

Input Ports

You should find the following items packaged with your PAS product:



The PAS unit



Optional power supply (if ordered)



If any of the above are missing, contact your dealer immediately.

Power and Output Ports