TrendCommunications AuroraPlus, User Manual, Page: 9 / 226

Issue 5 - 04/01 v
Contents
Contents
Introducing AuroraPlus ............................................. 1-1
Welcome ! ........................................................................ 1-1
Conventions in the Guide .................................................. 1-2
Your AuroraPlus ................................................................ 1-4
Types of AuroraPlus........................................................... 1-4
Features ............................................................................. 1-4
Use ................................................................................... 1-7
Supplied with AuroraPlus ................................................. 1-8
Looking after AuroraPlus .................................................. 1-8
Safety Advice ................................................................... 1-8
Where to get more information ........................................ 1-9
ISDN Explained .............................................................. 1-10
What is the ISDN? ............................................................ 1-10
ISDN Services .................................................................. 1-10
Equipment on the ISDN ................................................... 1-11
ISDN Interfaces ................................................................ 1-11
ISDN Standards ............................................................... 1-12
Pulse Code Modulation ................................................... 1-12
Methods of Voice Encoding ............................................. 1-12
Line Coding Techniques ................................................. 1-13
Basic Rate & Primary Rate ISDN ..................................... 1-13
The OSI 7-Layer Model .................................................... 1-15
Layer 1 (BRI) .................................................................... 1-16
Layer 2 .............................................................................. 1-17
Layer 3 .............................................................................. 1-17
Protocols .......................................................................... 1-18
Getting Started .......................................................... 2-1
A Look at AuroraPlus ....................................................... 2-2
The Keypad ...................................................................... 2-3
Switches ........................................................................... 2-4
S/U Change-Over Switch .................................................. 2-4
POTS Check Switch (Only via U Access Cable) .............. 2-5
Battery Charging Switch (Optional) .................................. 2-6
Termination Resistor Switch (TERM) ................................ 2-6
Interface Switch (Optional) ................................................ 2-7
Communication Ports & Connectors ................................ 2-8
Connecting AuroraPlus ..................................................... 2-9
Switching Power On ....................................................... 2-11
TOC.p65 30/04/01, 16:25 5