Guralp Systems Limited

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Introduction Installing the CMG-DM24 Using the DM24 Using Scream! Command line interface Inside the DM24  Güralp Compressed Format Connector pinouts Digitizer specifications Revision history

Connector pinouts

SENSOR A and B ports

This is a standard 26-pin mil-spec plug (02E-16-26P).

Pin

Function

A

Vertical velocity +ve

B

Vertical velocity –ve

C

N/S velocity +ve

D

N/S velocity –ve

E

E/W velocity +ve

F

E/W velocity –ve

G

Vertical mass position

J

N/S mass position

K

Busy indicator LED

L

E/W mass position

N

Signal ground

P

Calibration signal

R

Vertical calibration enable

S

N/S calibration enable

T

E/W calibration enable

U

Centre

W

Unlock

X

Lock

Y

Logic signal ground

b

Power 0 V

c

Power +10 to +24 V

AUXILIARY port

This is a standard 19-pin mil-spec plug (02E-14-19P).

Pin

Function

A

Optional SENSOR B auxiliary / calibration channel +ve

B

Optional SENSOR B auxiliary / calibration channel –ve

C

Optional SENSOR B signal ground

D

Optional SENSOR B Mux channel M3

E

Optional SENSOR B Mux channel M4

F

Optional SENSOR B Mux channel M7

G

Leave unconnected

H

Optional SENSOR B Mux channel M5

J

SENSOR A auxiliary / calibration channel +ve

K

SENSOR A auxiliary / calibration channel –ve

L

SENSOR A signal ground

M

Optional SENSOR B Mux channel M6

N

Digital ground

P

Leave unconnected

R

SENSOR A Mux channel MB

S

SENSOR A Mux channel MC

T

SENSOR A Mux channel MF

U

SENSOR A Mux channel MD

V

SENSOR A Mux channel ME

GPS port

This is a standard 10-pin mil-spec plug (02E-12-10P).

Pin

Function

A

Power 0 V

B

Power +12 V

C

1pps signal

E

Digitizer console transmit

F

Digitizer console receive

G

RS232 ground

H

Digitizer console ground

J

RS232 transmit to GPS

K

RS232 receive from GPS

DATA IN port

This is a standard 6-pin mil-spec plug (02E-10-06P).

Pin

Function

A

RS232 transmit

B

RS232 receive

F

RS232 ground

FIREWIRE port

Where present, this is a standard 6-pin mil-spec plug (02E-10-06P).

Pin

Function

A

Power 0 V

B

TPA +ve

C

TPA −ve

D

TPB −ve

E

TPB +ve

F

Power + V

USB port

Where present, this is a standard 6-pin mil-spec plug (02E-10-06P).

Pin

Function

A

+5 V DC (USB Type A pin 1)

B

Data –ve (USB Type A pin 2)

C

Data +ve (USB Type A pin 3)

D

0 V (USB Type A pin 4)

E

Shielding

F

Switched power +10 to +35 V

DATA OUT port

This is a standard 10-pin mil-spec plug (02E-12-10P).

Pin

Function

A

Power 0 V

B

Power +10 to +36 V

C

RS232 CTS

D

RS232 RTS

E

External trigger output

F

External trigger output

G

RS232 ground

H

External trigger input

J

RS232 receive

K

RS232 transmit

Previous Next

Introduction Installing the CMG-DM24 Using the DM24 Using Scream! Command line interface Inside the DM24  Güralp Compressed Format Connector pinouts Digitizer specifications Revision history