Sierra Video Yosemite - Manual (Page 6)

SIERRA VIDEO
Contents 2
Operation 53
Control System Overview 53
Speed 53
Serial Control Ports 53
Port 1 (Terminal Port) 54
Port 2 (Host Port) 55
9 Pin Serial Connections 55
Serial Adapter Connections for Older
Systems 55
Changing Ports 1 & 2 Between Host &
Terminal 56
Port 3 (RS-485 Control Panels) 57
Power Up 57
505150 Processors 59
Introduction 59
Processor Health Monitoring and
LEDs 60
Processor LEDs 60
LED Diagnostics 61
Diagnostic Startup Sequence 62
Terminal Diagnostics 63
Processor Health 63
System Size and Terminal
Command 64
Non-volatile RAM 65
Input, Output, and Level Names 65
Redundant 505150 Processors 66
Introduction 66
Preferred Master Switch 67
Processor Synchronization 68
Synchronizing Host and Terminal Protocols
on Both Processors 68
Takeover by Standby Processor 69
Redundant Processor Status and Terminal
“T” Screen 70
Periodic Testing of Standby Processor 70
504001 Processors 71
Introduction 71
LED Diagnostics 72
Communication Protocol 75
Introduction 75
Generic Protocol 75
Specifications 91
Warranty 95