UNI-TELWAY Contents

Section Page

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1 General 5

1.1 Network documentation presentation 5

1.2 Communication principles 6

1.2-1 General 6

1.2-2 Managing the UNI-TELWAY link 8

2 Operating principle 9

2.1 Sending a message 9

2.1-1 Access to the bus 9

2.1-2 Master to slave 10

2.1-3 Slave to master 11

2.1-4 Slave to slave 12

2.2 Connecting a station 13

2.3 Multiple exchange operation 14

3.1 General 15

3 Communication architecture 15

3.2 Examples of architectures 16

3.2-1 UNI-TELWAY in RS 485 mode 16

3.2-2 UNI-TELWAY in RS 232 mode 16

3.3 Devices which can be connected 17

UNI-TELWAY Contents

Section Page

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4 Characteristics and performance 19

4.1 Summary of UNI-TELWAY services 19

4.2 UNI-TELWAY on an isolated RS 485 link 20

4.2-1 Physical characteristics 20

4.2-2 Performance 21

5 Hardware installation 23

5.1 General 23

5.2 Wiring system 24

5.3 Description of the equipment 26

5.3-1 Trunk cable 26

5.3-2 TSX SCA 50 T-junction box 26

5.3-3 TSX SCA 62 subscriber socket 26

5.3-4 Terminal port isolation box : TSX P ACC01 27

5.4 Connecting devices 28

5.4-1 Principle of daisy chain connection 28

5.4-2 Principle of tap link connection 28

5.5 Installing the line 29

5.5-1 Installation 29

5.5-2 Connecting the shielding 29

5.5-3 Line termination 29

5.6 Installing the TSX SCA 50 30

5.6-1 Mounting 30

5.6-2 Wiring 30

5.6-3 Line termination 30