GX3788 J1 – Flex I/O Bank A Connector

This connector has 32 differential channels (P used for Positive, N for Negative pins).

Pin	Function	Pin	Function	Pin	Function	Pin	Function
1	DIO P0 CH0P	18	DIO P0 CH17P	35	DIO P1 CH0N	52	DIO P1 CH17N
2	DIO P0 CH1P	19	DIO P0 CH18P	36	DIO P1 CH1N	53	DIO P1 CH18N
3	DIO P0 CH2P	20	DIO P0 CH19P	37	DIO P1 CH2N	54	DIO P1 CH19N
4	DIO P0 CH3P	21	DIO P0 CH20P	38	DIO P1 CH3N	55	DIO P1 CH20N
5	DIO P0 CH4P	22	DIO P0 CH21P	39	DIO P1 CH4N	56	DIO P1 CH21N
6	DIO P0 CH5P	23	DIO P0 CH22P	40	DIO P1 CH5N	57	DIO P1 CH22N
7	DIO P0 CH6P	24	DIO P0 CH23P	41	DIO P1 CH6N	58	DIO P1 CH23N
8	DIO P0 CH7P	25	DIO P0 CH24P	42	DIO P1 CH7N	59	DIO P1 CH24N
9	DIO P0 CH8P	26	DIO P0 CH25P	43	DIO P1 CH8N	60	DIO P1 CH25N
10	DIO P0 CH9P	27	DIO P0 CH26P	44	DIO P1 CH9N	61	DIO P1 CH26N
11	DIO P0 CH10P	28	DIO P0 CH27P	45	DIO P1 CH10N	62	DIO P1 CH27N
12	DIO P0 CH11P	29	DIO P0 CH28P	46	DIO P1 CH11N	63	DIO P1 CH28N
13	DIO P0 CH12P	30	DIO P0 CH29P	47	DIO P1 CH12N	64	DIO P1 CH29N
14	DIO P0 CH13P	31	DIO P0 CH30P	48	DIO P1 CH13N	65	DIO P1 CH30N
15	DIO P0 CH14P	32	DIO P0 CH31P	49	DIO P1 CH14N	66	DIO P1 CH31N
16	DIO P0 CH15P	33	User 3.3V	50	DIO P1 CH15N	67	User 3.3V
17	DIO P0 CH16P	34	GND	51	DIO P1 CH16N	68	GND

J1 Flex IO Bank A Pin Out

Legend:

DIO Px CHy[P/N]: Differential Channel Port x, Channel y Positive or Negative.
User 3.3V: User 3.3 Volt line.
GND: Ground.