Guralp Systems Limited
MAN-030-0001 - Güralp 3T Operator's guide

PreviousNext

1. Preliminary Notes 2. Introduction 3. Installing the 3T 4. Calibrating the 3T 5. Accessories 6. Inside the 3T 7. Connector pin-outs 8. Specifications 9. Revision history

Section Index: 7.1. Sensor and control unit pin output 7.2. Sensor output (“D”-type connector option) 7.3. Sensor output (waterproof connector option) 7.4. Breakout box POWER connector

Chapter 7. Connector pin-outs

7.1 Sensor and control unit pin output

Models with a 26-pin bayonet plug have the pin assignments below. The RECORDER and HCU connectors on the breakout box are connected directly to the SENSOR connector, and behave identically.

This is a standard 26-pin “mil-spec” plug, conforming to MIL-DTL-26482 (formerly MIL-C-26482). A typical part-number is 02E-16-26P although the initial “02E” varies with manufacturer.

Suitable mating connectors have part-numbers like ***-16-26S and are available from Amphenol, ITT Cannon and other manufacturers.

Pin

Function

Pin

Function

A

Velocity +ve, vertical channel

P

Calibration signal (all channels)

B

Velocity –ve, vertical channel

R

Calibration enable, Z channel

C

Velocity +ve, N/S channel

S

Calibration enable, N/S channel

D

Velocity –ve, N/S channel

T

Calibration enable, E/W channel

E

Velocity +ve, E/W channel

U

Centre

F

Velocity –ve, E/W channel

V

not connected

G

Mass position, vertical channel

W

Unlock

H

* RS232 ground

X

Lock

J

Mass position, N/S channel

Y

Logic ground

K

BUSY LED

Z

* RS232 TxD from instrument

L

Mass position, E/W channel

a

* RS232 RxD to instrument

M

Power –ve (optional)

b

Power ground

N

Signal ground

c

Power +ve

* Optional lines for sensors with the RS232 control option. The RS232 ground is isolated from pins a and Z using 10 nF decoupling capacitors.

Wiring details for the compatible socket, ***-16-26S, as seen from the cable end, i.e. during assembly.

7.2 Sensor output (“D”-type connector option)

Some sensors were provided with a high-density “D”-connector in place of the standard bayonet connector.

These are standard DA26 sub-miniature (D-sub) plugs, conforming to DIN 41652 and MIL-DTL-24308. They are very widely available, as are suitable mating connectors.

Pin

Function

Pin

Function

1

Mass position, N/S component

14

Velocity –ve, Z component

2

Lock

15

Calibration enable, E/W component

3

BUSY LED

16

Velocity +ve, Z component

4

Logic ground

17

+ 10 – 36 V power

5

Mass position, E/W component

18

Velocity –ve, N/S component

6

not connected

19

Centre

7

*RS232 RxD (from instrument)

20

Velocity +ve, N/S component

8

Signal ground

21

Factory use only, do not connect

9

*RS232 TxD (to instrument)

22

Velocity –ve, E/W component

10

Calibration signal

23

Velocity +ve, E/W component

11

Calibration enable, N/S component

24

Unlock

12

Calibration enable, Z component

25

Mass position, Z component

13

0 V power

26

*RS232 ground

* Optional lines for sensors with the RS232 control option. The RS232 ground is isolated from the other ground lines (pins 4 and 8) using 10 nF decoupling capacitors.

Wiring details for the compatible socket, DA26F, as seen from the cable end, i.e. during assembly

7.3 Sensor output (waterproof connector option)

Waterproofed models have a custom 32-pin plug with pin spacing and layout conforming to MIL-DTL-26482 (formerly MIL-C-26482). The GSL part number is ELM-32P-18FX+MEC-GEN-1002-32W. These instruments are supplied with an adapter cable for connecting to a standard digitiser input.

Pin

Function

Pin

Function

A

Velocity +ve, vertical channel

T

Calibration enable, E/W channel

B

Velocity –ve, vertical channel

U

Centre

C

Velocity +ve, N/S channel

V

not connected

D

Velocity –ve, N/S channel

W

Unlock

E

Velocity +ve, E/W channel

X

Lock

F

Velocity –ve, E/W channel

Y

Logic ground

G

Mass position, vertical channel

Z

*RS232 RxD (from instrument)

H

Hole lock / *RS232 ground

a

* RS232 TxD (to instrument)

J

Mass position, N/S channel

b

Power ground

K

BUSY LED

c

Power +ve

L

Mass position, E/W channel

d

not connected

M

Power –ve (split power option)

e

not connected

N

Signal ground

f

not connected

P

Calibration signal (all channels)

g

not connected

R

Calibration enable, Z channel

h

not connected

S

Calibration enable, N/S channel

j

not connected

* Optional lines for sensors with the RS232 control option. The RS232 ground line (pin H) is isolated from the other ground lines (pins N and Y) using 10 nF decoupling capacitors.

Wiring details for the compatible socket, MEC-GEN-2002-32W, as seen from the cable end (i.e. when assembling).

7.4 Breakout box POWER connector

This is a standard 10-pin “mil-spec” plug, conforming to MIL-DTL-26482 (formerly MIL-C-26482). A typical part-number is 02E-12-10P although the initial “02E” varies with manufacturer.

Suitable mating connectors have part-numbers like ***-12-10S and are available from Amphenol, ITT Cannon and other manufacturers.

Pin

Function

A

0 volts (power ground)

B

+12 V DC supply

C

not connected

D

not connected

E

not connected

F

not connected

G

not connected

H

–12 V DC supply

J

not connected

K

not connected

Wiring details for the compatible socket, ***-12-10S, as seen from the cable end.

PreviousNext

1. Preliminary Notes 2. Introduction 3. Installing the 3T 4. Calibrating the 3T 5. Accessories 6. Inside the 3T 7. Connector pin-outs 8. Specifications 9. Revision history