CMG-DCM

 

Table of Contents

 

1 Introduction

5

1.1

Inside the DCM

7

Serial port services

8

Network services

8

2 Installing the CMG-DCM

10

2.1

Overview

10

2.2

Power supply

10

2.3

Connecting to a single computer

11

Connecting over a serial link

11

Connecting over Ethernet

12

Using an internal modem

13

Connecting over USB

13

2.4

Connecting to a local network

14

Wi-Fi

16

Connecting to the Internet

16

2.5

Connecting digitizers and external hardware

17

2.6 Setting up the CMG-DCM

17

Web setup

18

3 Usage

21

3.1

General notes

21

3.2

The DCM as a data store

21

3.3 The DCM as a GCF data source

25

Accessing the DCM command line through gcf_out

26

Sensor arrays

27

3.4

The DCM as a network data hub

28

Communicating with digitizers

29

Data storage and retrieval

31

Real-time data transmission

33

3.5

Troubleshooting DCM installations

35

I cannot connect to the DCM's DATA OUT port using a terminal program

35

I cannot see the DCM's Web site over HTTP or HTTPS

36

I cannot connect to the DCM's Scream! server

36

I cannot GCFPING the DCM's Scream! server

36

I can GCFPING the DCM's Scream! server, but no data appears

37

The DCM is not receiving any data streams

37

The DCM is receiving streams, but they do not contain any data

38

The DCM receives streams, but gaps appear in the data some minutes after boot-up....

39

The DCM receives streams, but 2-minute gaps appear in the data at 4-hour intervals.. .39

2

Issue A

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Minicom Advanced Systems CMG-DCM manual Table of Contents