Connectors & Pinouts

Timing Connector Pinouts

The timing interface connector supports all of the input and output references, as well as General-Purpose Input/Output (GPIO) functionality. Depending on your board model, it consists either of a 26-pin High-Density D-Sub connector, or a 25-pin Micro D-Sub connector.

Timing connector pinout

Pin	Signal	Pin	Signal
1	GPIO Output 2	14	GPIO Output 3
2	Ground	15	Ground
3	GPIO Output 0	16	GPIO Output 1
4	GPIO Input 2	17	GPIO Input 3
5	Ground	18	Ground
6	GPIO Input 0	19	GPIO Input 1
7	External 1PPS Input	20	1PPS Output
8	Ground	21	Ground
9	IRIG AM Output	22	10 MHz Output
10	IRIG AM Input +	23	Ground
11	IRIG AM Input –	24	IRIG DCLS Input –
12	IRIG DCLS Output –	25	IRIG DCLS Input +
13	IRIG DCLS Output +	(26)	Ground

Note: All units are shipped with a breakout cable; for additional information, see Accessories & Options.

Note: Units with a 25-pin micro D-sub connector are shipped with a strain-reducing adapter cable; for additional information, see Accessories & Options.