ZETRON 748 User manual

ZETRON
Model 748
Repeater Manager / Teleconnect
Technical Manual
Part No. 025-9368H
Copyright © 2002 by Zetron, Inc.
All Rights Reserved

025-9368H iii
WARRANTY STATEMENT
Zetron warrants that all equipment sold is free from defects in material and workmanship at
the time of shipment. The warranty extends one year from date of shipment and covers parts
and labor. Buyer must provide written notice to Zetron within the warranty period of any
defect. If the defect is not the result of improper use, service, maintenance or installation, and
if the equipment has not been otherwise damaged or modified after shipment, Zetron or its
authorized representative shall either replace or repair the defective parts, or replace the
equipment, or refund the purchase price at Zetron's option, after return of such equipment by
buyer to Zetron or its representative. Shipment shall be paid for by the buyer. No credit shall
be allowed for work performed by the buyer. Equipment found to not be defective shall be
returned at buyer's expense and testing and handling expense shall be borne by the buyer.
Out-of-warranty repairs will be invoiced at the current Zetron hourly rate plus the cost of
needed components.
LIMITATION OF LIABILITY
Zetron makes no representation with respect to the contents of this document and/or the
contents, performance, and function of any accompanying software and specifically
disclaims any warranties, expressed or implied, as to merchantability, fitness for purpose
sold, description, or quality.
Further, Zetron reserves the right to revise this document or the accompanying software and
to make changes in it from time to time without obligation to notify any person or
organization of such revisions or changes.
This document and any accompanying software are provided “as is.” Zetron shall not under
any circumstances be responsible for any indirect, special, incidental, or consequential
damages or losses to the buyer or any third party arising out of or connected with the buyer’s
purchase and use of Zetron’s products or services.
COPYRIGHT
This publication is protected by copyright by Zetron, Inc. and all rights are reserved
worldwide. This publication may not, in whole or in part, be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form
without prior written consent from Zetron, Inc.
The software in this product is protected by copyright by Zetron, Inc. and remains the
property of Zetron, Inc. Reproduction, duplication, or disclosure is not permitted without
prior written consent of Zetron, Inc.

iv 025-9368H
TRADEMARKS
Zetron is a registered trademark of Zetron, Inc.
All other product names in this document are trademarks or registered trademarks of their
respective owners.
INDUSTRIAL AND OPERATIONAL WARNINGS
Installation of the Model 748 must be accomplished only by qualified personnel experienced
in telephone, radio communications systems.
WARNING:
The Model 748 requires 12 volt-DC, at 700 ma supplied by the radio station power supply, or
a CE approved 9 to 12 volt-AC source rated at 11 watts. Other usage will INVALIDATE
any APPROVAL given to this apparatus.
The approval of this interconnect for connection to the British Telecom Public Switched
Telephone Network is INVALIDATED if the apparatus is subject to any modification in any
material way not authorized or it is used with or connected to:
(i) external control software or external control apparatus which causes the operation
of the interconnect or associated call setup equipment to contravene the
requirements of the standard set out in NTR3.
All apparatus connected to this interconnect and thereby connected directly or indirectly to
British Telecom Private Speachband circuits must be approved apparatus as defined in
Section 22 of the British Telecommunications Act 1984.
The Model 748 is suitable for connection to BT Direct Exchange lines and as an extension to
compatible PABXs which support MF (DTMF) signaling.
This apparatus can be used on circuits which support MF (DTMF) signaling.

025-9368H v
INSTALLATION AND OPERATIONAL WARNINGS (Continued)
WARNING:
Although this equipment can use either loop disconnect or DTMF signaling, only the
performance of the DTMF signaling is subject to regulatory requirements for correct
operation. It is therefore strongly recommended that the equipment is set to use DTMF
signaling for access to public or private emergency services. DTMF signaling also provides
faster call set up.
This apparatus has been approved for the use of the following facilities:
MODEM
Auto-Answering
Auto-Clearing
Auto-Calling
DTMF Signaling
Any other usage will invalidate the approval of the apparatus if as a result it then ceases to
conform to the standards against which approval was granted.
WARNING:
When programming Auto-Dial numbers, the user must check and insure that all numbers are
correctly programmed.
The Model 748 has a Ringer Equivalence Number (REN) of 3.0.
A single telephone line has a physical limit to the number of ringers that can be connected
and still provide reliable operation, Each type of apparatus will be marked with a REN value
(a typical BT provided telephone instrument has a REN of 1.0 - unless otherwise marked).
The maximum REN value for a single line is 4.0.
The maximum number of ringers that may be connected to a specific telephone line is
determined by adding up the individual REN values of the desired instruments, and insuring
that their total does not exceed 4.0.
The Model 748 is not intended to receive calls from naive callers. A naive caller is one with
no special knowledge of the characteristics of the auto-answering system (Model 748).
If the Model 748 is connected to the Public Switch Telephone Network, the telephone
number must not be made public.
The Model 748 is not suitable for connection as an extension to a pay phone, or for use with
a 1 + 1 carrier system.

vi 025-9368H
INSTALLATION AND OPERATIONAL WARNINGS (Continued)
When the Model 748 will be connected to a PBX, the following statements apply:
The apparatus (Model 748) is approved for use as an extension instrument to
compatible PBXs. The supplier of the apparatus should be consulted for an up to date
list of PBXs with which the apparatus is compatible.
It cannot be guaranteed that the apparatus will operate correctly under all possible
conditions of connection to compatible PBXs. Any cases of difficulty should be
referred in the first instance to the supplier of the telephone apparatus. This apparatus
has been approved for the use of the following facilities:
MODEM
Auto-Answering
Auto-Clearing
Auto-Calling
DTMF Signaling
Any other usage will invalidate the approval of the apparatus if as a result it then
ceases to conform to the standards against which approval was granted.
This apparatus is suitable for connection to a PBX which returns a secondary proceed
indication.
Where the PBX extension wiring is not owned by BT, such connections may only be
made by the Designated Maintainer of the PBX unless:
1) he has agreed in writing that another person may do so,
2) he has failed to do so within a period of 14 days of receiving written
notice requesting such connection to be made,
or
3) where the apparatus has not been approved as an entirety with the PBX

025-9368H vii
INSTALLATION AND OPERATIONAL WARNINGS (Continued)
WARNING:
For units which have the voice prompts option installed, the following caution applies:
CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used battery according
to the manufacturer's instructions.
WARNING:
All Ports except PSTN (identified as "line 1" on rear panel) are SELV and should only be
connected to SELV equipment.

viii 025-9368H
Manufacturer Name and Address: European Union Representative:
Zetron, Inc. Zetron, Inc.
12034 134th CT. NE 27-29 Campbell Court,
Redmond, WA 98052, USA Campbell Road,
Bramley, TADLEY,
Basingstoke, RG26 5EG, UK
Australian Representative:
Zetron Australasia Pty Ltd.,
3/87 Webster Road,
Stafford QLD 4053 Australia
Declares that for the Product: Model 2200 Paging System
901-9205, 901-9305
In Application of Council Directives: EU EMC Directive 89/336/EEC
EU Low Voltage Directive 73/23/EEC
Compliance was demonstrated to the following specifications:
Radiated Emissions EN 55022:1998
Conducted Emissions EN 55022:1998
Harmonic Current Emissions EN 61000-3-2:1995 +A1 & A2:1998 +A14:2000
Voltage Fluctuations and Flicker EN 61000-3-3:1995
Electrostatic Discharge Immunity EN 61000-4-2:1995 +A1:1998
RF Electromagnetic Fields Immunity EN 61000-4-3:1996 +A1:1998
Electrical Fast Transient/Burst Immunity EN 61000-4-4:1995
Surge Immunity EN 61000-4-5:1995
Conducted RF Disturbances Immunity EN 61000-4-6:1996
Voltage Dips and Interruptions EN 61000-4-11:1994
Redmond, WA, USA Tom Giles ________________________________
July, 02 Quality Systems Manager

025-9368H ix
CONTENTS
TRADEMARKS .................................................................................................................................. iv
CONTENTS ....................................................................................................................................................... ix
I INTRODUCTION........................................................................................................................................... 1
SYSTEM FEATURES......................................................................................................................... 2
Interconnect (System) ............................................................................................................ 2
Interconnect Per User (Up to 750 Users)............................................................................... 2
Repeater Panel ....................................................................................................................... 3
PROGRAMMING................................................................................................................................ 3
Supervisor User...................................................................................................................... 3
Enhanced Toll Restriction...................................................................................................... 3
Interconnect Hog Mode ......................................................................................................... 4
Scheduled Telco Access......................................................................................................... 4
INTERCONNECT OPTIONS ............................................................................................................. 4
Model 748, Basic................................................................................................................... 4
Model 748, Selcall................................................................................................................. 4
Model 748, Roamer................................................................................................................ 4
Call Detail Option.................................................................................................................. 4
Voice Prompts Option............................................................................................................5
Dial Click Option................................................................................................................... 5
Kit Options............................................................................................................................. 5
ABOUT THIS MANUAL.................................................................................................................... 6
Typographical Conventions ................................................................................................... 6
II INSTALLATION ........................................................................................................................................... 7
INSTALLATION AND OPERATIONAL WARNING ...................................................................... 7
GENERAL........................................................................................................................................... 7
REQUIRED TEST EQUIPMENT....................................................................................................... 7
TYPICAL CONNECTIONS................................................................................................................ 8
INSTALLATION PROCEDURE ........................................................................................................ 9
RESETTING TO FACTORY DEFAULTS......................................................................................... 11
TESTS AND ADJUSTMENTS...........................................................................................................12
FINAL CHECKS BEFORE LEAVING THE SITE ............................................................................ 17
OPTIONAL CONNECTIONS............................................................................................................. 17
RADIO-SPECIFIC CONNECTIONS.................................................................................................. 17
Icom IC-RP1510 Repeater..................................................................................................... 18
Kenwood TKR-720 / TKR-820 Repeater .............................................................................. 19
Motorola GR300 Repeater (or a pair of GM300 radios)........................................................ 20
Tait T800 Series Repeater...................................................................................................... 21
Tait T300 Series Radio ..........................................................................................................22
IN CASE OF DIFFICULTY................................................................................................................ 23
MISCELLANEOUS SERVICE NOTES ............................................................................................. 23
Upgrading to a New Version of Software.............................................................................. 24
Installing New EPROMs........................................................................................................ 25
Call Detail Option (950-9587) Installation ............................................................................ 26
Voice Prompts Option (950-9588) Installation...................................................................... 27
Dial Click Option (950-9589) Installation............................................................................. 28
III OPERATION ................................................................................................................................................ 29
INTERCONNECT OVERVIEW......................................................................................................... 29
TELCO ORIGINATED CALLS..........................................................................................................30
Call Setup (Telco).................................................................................................................. 30

Contents
x025-9368H
Telephone to Mobile Calls..................................................................................................... 31
Telephone-to-Talkback Mobile Calls..................................................................................... 31
Telephone-to-Tone-Only Pager Calls .................................................................................... 32
Telephone-to-Tone-and-Voice Pager Calls............................................................................ 32
MOBILE ORIGINATED CALLS ....................................................................................................... 33
Call Setup (Mobile)................................................................................................................ 33
Mobile-to-Telephone .............................................................................................................34
Mobile-to-Mobile................................................................................................................... 34
ANI Mobile-Repeat................................................................................................................ 34
DISCONNECT TONES....................................................................................................................... 35
ENHANCED TOLL RESTRICTION.................................................................................................. 36
Universal Plan........................................................................................................................ 37
North American Plans............................................................................................................37
General features ..................................................................................................................... 38
PBX OPERATION .............................................................................................................................. 40
Internal Calls.......................................................................................................................... 40
External Calls......................................................................................................................... 40
Hook Flash............................................................................................................................. 41
Interconnect Hog Mode ......................................................................................................... 41
Call Alert Beeps..................................................................................................................... 41
Autodials................................................................................................................................ 41
ACCESS AND DISCONNECT ANIs ................................................................................................. 42
Access ANI............................................................................................................................ 43
Short Sign-on ......................................................................................................................... 43
ANI Sign-on........................................................................................................................... 43
Steering Digits........................................................................................................................ 43
Disconnect ANI...................................................................................................................... 44
ANI Digit Timing................................................................................................................... 44
SCHEDULED TELCO ACCESS ........................................................................................................ 44
PAGE FORWARD............................................................................................................................... 45
AUXILIARY INPUT........................................................................................................................... 45
AUXILIARY OUTPUT....................................................................................................................... 45
REPEATER PANEL OPERATION .................................................................................................... 45
Tone Validation ..................................................................................................................... 45
Reserved Tone ....................................................................................................................... 46
Tone-in-Tail........................................................................................................................... 46
Privacy ................................................................................................................................... 46
Courtesy Bip .......................................................................................................................... 46
Tail Bips................................................................................................................................. 46
Transmit Hold Time............................................................................................................... 46
Morse ID................................................................................................................................ 46
Hog Mode .............................................................................................................................. 47
TX Timeout............................................................................................................................ 47
Stuck Mic ID.......................................................................................................................... 47
Carrier Squelch Repeat ..........................................................................................................47
DTMF Repeat ........................................................................................................................ 47
INTERCONNECT GATEWAY .......................................................................................................... 47
How It Works......................................................................................................................... 47
Call Setup............................................................................................................................... 48
Sub-audible Only..................................................................................................... 49
Short Sign-on + Sub-audible.................................................................................... 49
Call Clear Down..................................................................................................................... 50
System Setup.......................................................................................................................... 50
Four Site Example.................................................................................................................. 50
How to Program It................................................................................................... 51