ZIV MAS-2, User Manual, Page: 3 / 39

Communication solutions for power utilities
1U SHELF TYPE MAS-2
WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
3/39
TABLE OF CONTENTS
Page
1 INTRODUCTION 4
1.1 CONSTITUTION OF THE EQUIPMENT 4
1.2 TECHNICAL CHARACTERISTICS 5
1.2.1 Data transmission 5
1.2.2 Transmitter 5
1.2.3 Receiver 7
1.2.4 Data interface 9
1.2.5 Power supply 10
1.2.6 Environmental conditions 11
1.2.7 Other characteristics 11
2 OPERATING PRINCIPLE 19
2.1 TRANSMISSION 19
2.2 RECEPTION 19
2.3 GENERAL ALARM 20
2.4 TEST DEVICES 20
2.4.1 Line loop 21
2.4.2 Data loop 21
2.4.3 Continuous sending of test signals 22
2.5 MODEM BLOCKING 22
3 INSTALLATION 23
3.1 MECHANICAL AND ELECTRICAL CHARACTERISTICS 23
3.2 EXTRACTING AND INSERTING THE MODULE 23
3.3 EXTERNAL CONNECTION 24
4 COMMISSIONING 28
4.1 FRONT-PLATE ELEMENTS 28
4.1.1 CONFIGURATION microswitch 28
4.1.2 Signalling 30
4.1.3 Adjustments and test points 31
4.2 INTERNAL MICROSWITCH (MI2) 33
4.3 INTERNAL JUMPERS 35
4.4 ADJUSTMENTS 36
4.4.1 Transmit-level adjustment 36
4.4.2 Receive-level adjustment 36