B&B Electronics USB-4751/4751L user manual Opto-22 CN1, Opto-22 CN2 USB-4751 Only

Figure 3.2: Opto-22 CN1/CN2

Opto-22 CN1

1	PC07	2	GND
3	PC06	4	GND
5	PC05	6	GND
7	PC04	8	GND
9	PC03	10	GND
11	PC02	12	GND
13	PC01	14	GND
15	PC00	16	GND
17	PB07	18	GND
19	PB06	20	GND
21	PB05	22	GND
23	PB04	24	GND
25	PB03	26	GND
27	PB02	28	GND
29	PB01	30	GND
31	PB00	32	GND
33	PA07	34	GND
35	PA06	36	GND
37	PA05	38	GND
39	PA04	40	GND
41	PA03	42	GND
43	PA02	44	GND
45	PA01	46	GND
47	PA00	48	GND
49	+5V_OUT	50	GND

Opto-22 CN2 (USB-4751 Only)

1	PC17	2	GND
3	PC16	4	GND
5	PC15	6	GND
7	PC14	8	GND
9	PC13	10	GND
11	PC12	12	GND
13	PC11	14	GND
15	PC10	16	GND
17	PB17	18	GND
19	PB16	20	GND
21	PB15	22	GND
23	PB14	24	GND
25	PB13	26	GND
27	PB12	28	GND
29	PB11	30	GND
31	PB10	32	GND
33	PA17	34	GND
35	PA16	36	GND
37	PA15	38	GND
39	PA14	40	GND
41	PA13	42	GND
43	PA12	44	GND
45	PA11	46	GND
47	PA10	48	GND
49	+5V_OUT	50	GND

13 Chapter3