TC1710 RS-485
(Optional Dual Optics)
User's Manual
Rev. 1.6
−2−
Table of Contents
Chapter 1 - Overview ............................................................................................................... 3
Description .......................................................................................................................................... 3
Electrical Specifications ................................................................................................................... 3
Theory of Two and Four Wire RS-485 Operation .......................................................................... 3
Two and Four Wire RS-485 pin connection diagrams .................................................................. 4
RS-422/RS-485 pin connection diagram ....................................................................................... 4
LEDs, DIP Switches and Connectors .............................................................................................. 5
DIP Switch Functions ........................................................................................................................ 6
Front Panel Switches ........................................................................................................................ 6
SW1 Internal PCB Dip Switches for RS-485 Transition Timer Setup ........................................ 6
RS-485 Transition Timer Setup ....................................................................................................... 7
RS-422 & RS-485 Termination Resistor ......................................................................................... 7
Optical Specifications ....................................................................................................................... 7
RS-485 Signal Cross Reference ..................................................................................................... 7
Optical Redundancy (optional) ........................................................................................................ 8
Dry Contact Alarm Relay ................................................................................................................... 8
Power Supply ...................................................................................................................................... 8
Chapter 2 - Installation ........................................................................................................... 9
Unpacking the Unit ............................................................................................................................ 9
Equipment Location .......................................................................................................................... 9
Installation Procedure Summary ..................................................................................................... 9
Chapter 3 - Troubleshooting ................................................................................................ 11
General .............................................................................................................................................. 1 1
All LEDs are "Off" ............................................................................................................................. 1 1
Alarm LED ......................................................................................................................................... 1 1
Optic Cable Types ............................................................................................................................ 1 1
Calculating the Loss on the Fiber ................................................................................................. 1 1
RS-485 Cable Verification ............................................................................................................... 1 1
Optic Cable Verification .................................................................................................................. 1 2
Chapter 4 - Bench Tests ....................................................................................................... 13
General .............................................................................................................................................. 1 3
Test Equipment Requirements ...................................................................................................... 1 3
Pre-Installation Tests ....................................................................................................................... 1 3
Bench Test With Built-In Signal Generator .................................................................................. 1 4
Chapter 5 - Component Placement ..................................................................................... 15
Chapter 6 - Specifications .................................................................................................... 16
Appendix A............................................................................................................................. 17
DB25 to Winchester (DTE) Adapter Cable (for V.35 interface) ................................................ 1 7
Appendix B............................................................................................................................. 18
DB25 to Winchester (DCE) Adapter Cable (for V.35 interface) ............................................... 1 8
Appendix C ............................................................................................................................ 19
Return Policy .................................................................................................................................... 1 9
Warranty ............................................................................................................................................. 19
Limitation of Liability .......................................................................................................................... 20