background image

02-107 (Issue 2) 11/09 

TECPRO MS745 MASTER STATION  

 

 

 

Product Code 27-745 

 

Designed and manufactured in the UK 

Canford Audio Plc 

Crowther Road 

Washington 

Tyne and Wear 

NE38 0BW 

 

www.canford.co.uk

 

 

CONTENTS   

Section 1.0 

Introduction 

Section 2.0 

Features 

Section 3.0 

Installation 

Section 4.0 

Operation 

Section 5.0 

Configuration 

Section 6.0 

Technical Specification 

Section 7.0 

Wiring Convention 

 
1.0 

INTRODUCTION

 

 

The Tecpro system is a ‘two-wire’ or ‘party line’ system which enables a number of personnel to take part 
in the same conversation simultaneously.  Major applications are in the theatre, television studios, 
conference venues and stadiums. 
The Tecpro MS745 master station allows two intercom circuits A and B to be created and each circuit can 
power up to a maximum of 30 belt-packs, or a mix of belt-packs and loudspeaker stations. 
System cabling should be a twisted pair with an overall screen and the cabling can radiate out from a 
central distribution point or looped from one outstation to the next and so on.  A combination of both 
methods is often used. 

 

 

 

The Tecpro MS745 is compatible with original Tecpro products. 

 
2.0 

FEATURES

 

 

 

Two independent intercom circuits A and B 

 

Circuits A and B may be linked to form a single circuit 

 

Supports up to 30 Tecpro belt-packs or 7 Tecpro loudspeaker outstations per circuit 

 

Short circuit and overload protection on each circuit 

 

XLR4 input for optional headset 

 

‘Remote Mic Kill’ feature can close all open mics on a selected circuit (Tecpro 2 outstations only) 

 

AUX audio input switchable between mic or line level sensitivity for ‘show relay’ audio purposes 
 

Summary of Contents for MS745

Page 1: ...ts A and B to be created and each circuit can power up to a maximum of 30 belt packs or a mix of belt packs and loudspeaker stations System cabling should be a twisted pair with an overall screen and the cabling can radiate out from a central distribution point or looped from one outstation to the next and so on A combination of both methods is often used The Tecpro MS745 is compatible with origin...

Page 2: ...connected to circuits A or B as necessary male XLR3 connectors are provided for each circuit Please see figure 1 1 Rear panel XLR circuit A and B connectors interconnection cable should be a screened twisted pair with XLR3 Earth Screen 24V DC Audio nd B Switches A or B first press the associated CIRCUIT switch A momentary press will latch holding the switch down will enable the function only as lo...

Page 3: ...s and belt packs on that circuit Sometimes it is necessary to kill open microphones on a circuit that are causing intelligibility ms during a show or performance This can be achieved by pressing the remote mic kill It will glow RED when pressed and the associated circuit switches that are selected All open mics on the circuit selected will be killed Please see figure This function will work with n...

Page 4: ...NEL These are accessible through the front panel N B They will not normally require adjustment as they have been carefully set for a null position during manufacture The function of the SIDETONE preset is to minimise the amount of microphone s the headset when plugged in There are individual SIDETONE presets for circuit A and B Main PCB Before removing the top cover please make sure the unit is un...

Page 5: ...le c Permanent installation or mobile use In general we suggest a screened 0 5 sq mm 20AWG twisted pair cable should be used Canford heavy duty cables FST HD HST HD and HST HD R are suitable HST HD R has a polyurethane jacket which has very similar properties to rubber i e very abrasion resistant and resilient FST HD is a foil screened cable specifically for permanent installation purposes HST HD ...

Page 6: ...114 BP115 XLR4 Pin 1 Microphone screen Pin 2 Microphone signal Pin 3 Earphones common Pin 4 Earphones signal BP116 BP117 XLR5 Pin 1 Microphone screen Pin 2 Microphone signal Pin 3 Earphones common Pin 4 Left earphone Pin 5 Right earphone Figure 10 Internal View Of MS745 Main PCB Layout ...

Reviews: