Guralp Systems CMG-DM24 - Manual (Page 5)

Operator’s Guide DM-24 Digitiser
Issue G January 2003 3
CONTENTS
page
1. Introduction 5
2. Operating Instructions 9
2.1 Stand-Alone CMG-DM24 Front Panel Connectors 9
2.2 CMG-DM24 Sensor Module Connectors 11
2.3 Quick Start 12
2.4 FLASH Memory Upgrade 16
3. Digitiser Configuration and Control Mode 19
3.1 Digitiser Configuration:- Using SCREAM 20
Digitiser Configuration 20
Digitiser Output Control Programming 22
Programming Trigger Parameters 25
Setting Digitiser Communication Parameters 27
Sensor Calibration 28
Sensor Mass Control 29
Auxiliary (Mux) Channels 30
Buffering – Data Storage
Buffering – FLASH Data Storage 31
31
3.2 Digitiser Configuration:- Using Terminal 33
Digitiser Configuration 33
Digitiser Output Control Programming 34
Programming Trigger Parameters 36
Setting Digitiser Communication Parameters 37
Sensor Calibration 38
Sensor Mass Control 39
Auxiliary (Mux) Channels 39
4. Status Information 41
5. Digitiser Data Acquisition and Telemetry 47
6. Adding a Digitiser Module onto a Broadband Sensor 49
7. System Power Requirements 51
8. Description of the Broadband Digitiser 53
9. Data Transmission Protocol & Data Block Structure 57
10. STA/LTA Trigger Options 61
11. GPS Receiver 69
12. Connector Pin outs 71
13. CMG-DM24S12, 12 Channel Digitiser. 77