Section 4 INSTALLATION &
BASIC OP
57
NT1 will automatically be disabled. The NT1 power may come from the Zephyr, so no
additional power supply is needed. Some telephone sets may be powered from the
Zephyr.
The S/T cable is has larger plugs than a normal modular phone cable, using 8- pin RJ-
45s. Four of the wires are used for the S interface and two are used to convey power
from the Zephyr to the NT1.
The S/T Only Interface (Europe and Elsewhere)
The Zephyr connects to the NT1 at one of the TERMINAL jacks. Use only an 8-
conductor cable.
Unlike the USA version, this ISDN interface does not provide power to the NT1 and it
must be provided independently.
TA
Zephyr S/T ISDN Interface
NT1
S/T
To
Telco Line
The usual set-up outside the USA. The S/T jack is connected
to the NT1 provided by the telephone authority.
HOT TIP!
NT1s often have a reset button which may be pressed to re-
start the NT1 and re-initialize the Telco connection, in the
event of trouble. The Zephyr will sense the reset and will
respond by also re-initializing its part of the ISDN connection.
However, any connection in progress will be lost when this
happens.
IMPORTANT!
In this case, the NT1 will be powered by the Telco. If your
Zephyr’s terminal adapter does not show the Euro telecom
approval symbol (looks like 2 hockey sticks in a circle) you
should contact Telos Systems customer support before
proceeding. This is because the Zephyr’s built in supply and
the power supply from the NT1 can conflict and cause damage
to the Zephyr, NT1, or both.
Summary of Contents for Zephyr
Page 13: ...Table of Contents 13 SECTION 1 QUICK RESULTS ...
Page 26: ...Section 2 INTRODUCTION 26 This page intentially left blank ...
Page 27: ...Section 2 INTRODUCTION 27 SECTION 2 INTRODUCTION ...
Page 38: ...Section 2 INTRODUCTION 38 This page intentionally left blank ...
Page 39: ...39 SECTION 3 ZEPHYR AT A GLANCE ...
Page 52: ...Section 4 INSTALLATION BASIC OPERATION 52 This page intentionally left blank ...
Page 53: ...Section 4 INSTALLATION BASIC OP 53 SECTION 4 INSTALLATION BASIC OPERATION ...
Page 84: ...Section 4 INSTALLATION BASIC OPERATION 84 ...
Page 85: ...Section 5 ISDN 85 SECTION 5 ISDN ...
Page 105: ...Section 6 NON ISDN NETWORKS 105 SECTION 7 AUDIO CODING ...
Page 118: ...Section 7 AUDIO CODING PRINCIPLES 118 This page intentionally left blank ...
Page 119: ...Section 8 DETAILED MENU REFERENCE 119 SECTION 8 DETAILED MENU REFERENCE ...
Page 157: ...Section 9 REMOTE CONTROL 157 SECTION 9 REMOTE CONTROL ...
Page 176: ...Section 9 REMOTE CONTROL 176 This page intentionally left blank ...
Page 177: ...Section 10 ADVANCED PROBLEM SOLVING 177 SECTION 10 ADVANCED PROBLEM SOLVING ...
Page 196: ...Section 10 ADVANCED PROBLEM SOLVING 196 This page intentionally left blank ...
Page 197: ...Section 11 TECHNICAL INFORMATION 197 SECTION 11 DETAILED TECHNICAL INFORMATION ...
Page 219: ...Section 12 SCHEMATICS 219 SECTION 12 SCHEMATICS ...
Page 221: ...Section 13 MANUFACTURER S DATA SHEETS 221 SECTION 13 MANUFACTURER S DATA SHEETS ...
Page 223: ...Section 14 SPECIFICATIONS WARRANTY 223 SECTION 14 SPECIFICATIONS AND WARRANTY ...
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Page 229: ...Section 15 APPENDICES 229 SECTION 15 APPENDICES ...