3 gpio – Guralp Systems CMG-40TDE User Manual
Page 12

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