QVS IC-485S User Manuals

Table of Contents

• 1 FUNCTION OVERVIEW

  1
• l-l Introduction

  1
• l-2 Specifications.

  2
• 2 INSTALLATION

  3
• 2- 1 Installation Procedure.

  3
• 2-2 Switch Function Description

  4
• 3 OPERATION

  6
• 3-l Point-to-Paint/4-Wire Full Duplex

  8
• 3-2 Point-to-Paint/2-Wire Half Duplex

  9
• 3-4 Multidrop/2-Wire Half Duplex

  11
• 3-5 Simplex/Transmit, Receive Only.

  12
• 3-6 Monitoring (for IC-485s only)

  13
• 4- 1 Terminal Block Definition.

  14
• 4-2 Self Test

  15
• Trouble Shooting

  16
• Preventing Radio & TV Interference.

  18