Chapter 3. Connector pin-outs
3.1 Digitiser connector
These are standard 26-pin “military-specification” bayonet plugs, 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 | Vertical velocity non-inverting | P | Calibration signal |
B | Vertical velocity inverting (-) | R | Vertical calibration enable |
C | N/S velocity non-inverting | S | N/S calibration enable |
D | N/S velocity inverting (-) | T | E/W calibration enable |
E | E/W velocity non-inverting | U | Centre |
F | E/W velocity inverting (-) | V | not connected |
G | Vertical mass position | W | Unlock |
H | not connected | X | Lock |
J | N/S mass position | Y | Logic signal ground |
K | Busy indicator LED | Z | not connected |
L | E/W mass position | a | not connected |
M | not connected | b | Power 0 V |
N | Signal ground | c | Power output (+ve) |
| Wiring details for the compatible socket, ***-16-26S, as seen from the cable end. |
3.2 Instrument connector
These are standard 24-pin “military-specification” free plugs, conforming to MIL-DTL-5015 (formerly MIL-C-5015). They are selected to mate directly with the “REMOTE” connector on the STS-2's Host Box. |
|
Pin | Function | Pin | Function |
A | Logic signal ground | N | V calibration signal |
B | Vertical velocity non-inverting | P | W calibration signal |
C | N/S velocity non-inverting | Q | U calibration signal |
D | E/W velocity non-inverting | R | PERSW (not connected) |
E | AUTZ (Centre) | S | RET (linked to X) |
F | Signal ground | T | U mass position |
G | Vertical velocity inverting (-) | U | W mass position |
H | N/S velocity inverting (-) | V | V mass position |
J | E/W velocity inverting (-) | W | Power input (+ve) |
K | CALSW (Calibration enable) | X | Power input (0V) (linked to S) |
L | SIGSW (linked to K) | Y | not connected |
M | CCOM (Signal ground) | Z | not connected |
| Wiring details, looking into the pins. |
