CONTENTS
SAFETY WARNINGS / Avertissements de sécurité .................................................................................................................................. 0
CHAPTER 1 - INTRODUCTION ................................................................................................................................................................................. 1
1.1 Functional Description ............................................................................................................................................................................. 1
1.2 Theory of Operation .................................................................................................................................................................................. 2
CHAPTER 2 - BASIC OPERATION AND FUNCTIONS ...................................................................................................................................... 2
2.1 Front Panel Indicators and Switches ................................................................................................................................................. 2
2.2 Front Panel Switches ................................................................................................................................................................................ 2
2.2 Rear Panel Connectors and Fuses ....................................................................................................................................................... 2
2.3 Clocking ........................................................................................................................................................................................................... 2
2.4 Electrical Interface ..................................................................................................................................................................................... 2
2.5 Sub-channel CONTENTION Modes ..................................................................................................................................................... 3
2.5.1 Sub-channel SCANNING Mode ........................................................................................................................................................ 3
2.5.2 Sub-channel PRIORITY Mode ......................................................................................................................................................... 3
2.5.3 Sub-channel SWITCH ON DATA ..................................................................................................................................................... 3
2.6 DATA BROADCAST ONLY APPLICATIONS ...................................................................................................................................... 3
2.7 ANTI-STREAMING ...................................................................................................................................................................................... 3
2.7.1 Automatic DTE Removal ................................................................................................................................................................... 3
2.7.2 Manual DTE Removal ......................................................................................................................................................................... 4
2.7.3 Unexplained Streaming Terminals ............................................................................................................................................... 4
2.8 Dial Modem Support ................................................................................................................................................................................. 4
2.9 Cascading or Concatenation .................................................................................................................................................................. 4
CHAPTER 3 - INSTALLATION .................................................................................................................................................................................. 4
3.1 Voltage Selection ......................................................................................................................................................................................... 4
3.2 Voltage Selection Fuses ............................................................................................................................................................................ 4
3.3 Power Connection ...................................................................................................................................................................................... 5
3.4
INTERNAL DIP SWITCH AND PIN-HEADER SETTINGS .......................................................................................................... 5
3.4.1
SW1 Dip Switch Settings ............................................................................................................................................................ 5
3.4.1.2
Anti-Streaming (SW1-4) ....................................................................................................................................................... 5
3.4.2.2
Channel Service Modes (SW1-5) ..................................................................................................................................... 5
3.4.2.3
Frame to Signal Ground (SW1-6) .................................................................................................................................... 5
3.5
SUB-CHANNEL CONTENTION MODES ........................................................................................................................................... 6
RTS/CTS
Operation
to
Sub
‐
Channel
Contention(Hand
Shaking)
............................................................................................. 6
OR
‐
MODE
Operation
(System
doesn’t
care
about
RTS
or
DTR.
Any
port
data
gets
thru)
.......................................... 6
3.6
MASTER PORT OPTIONS ...................................................................................................................................................................... 6
3.7
SUB-CHANNEL PORT OPTIONS ......................................................................................................................................................... 6
4.0 - APPENDIX ............................................................................................................................................................................................................... 8
4.1 Serial Port Pinouts ..................................................................................................................................................................................... 8
OVERVIEW, MSD-4 FRONT AND REAR VIEWS ................................................................................................................................................ 9
5
.0
–
TECHNICAL SPECIFICATIONS .................................................................................................................................................................... 10
