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3 gpio – Guralp Systems CMG-40TDE User Manual

Page 12

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CMG-40TDE

4.3 GPIO

This is a standard 12-pin “mil-spec” socket,

conforming to MIL-DTL-26482 (formerly

MIL-C-26482). A typical part-number is

02E-14-12S although the initial “02E” varies

with manufacturer.

Suitable mating connectors have part-

numbers like ***-14-12P and are available

from Amphenol, ITT Cannon and other

manufacturers.
The USB lines provide external host access to the internal USB

memory device. When power is sensed on pin J, an internal switch

disconnects the memory device from the internal circuitry and

connects it to this socket.

Pin Function
A

USB Data -ve (USB Type A pin 1) - see text above.

B

USB Data +ve (USB Type A pin 3) - see text above.

C

Anti-tamper line 4

D

Anti-tamper line 3

E

Anti-tamper line 2

F

Anti-tamper line 1

G

Console transmit (RS232 TXD)

H

Console receive (RS232 RXD)

J

USB Power input (USB Type A pin 1) - see text above.

K

Ground (USB Type A pin 4)

L

Anti-tamper line 0

M

Ground

Wiring details for the compatible plug,

***-14-12P, as seen from the cable end (i.e.

during assembly).

12

Issue A

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