Meilhaus Electronic ME-90 Series, Электронное руководство, Страница: 107 / 120

B4 ME-90PC/104-Plus
Both of the 40-pin IDC connectors for COM1…4 and COM5…8 are
allocated identically (see the following table).
Pin COM RS-232 Direction RS-422/485 Direction
1
1 or 5 DCD Input RxD+ Input
2
1 or 5 DSR Input reserved –
3
1 or 5 RxD Input RxD- Input
4
1 or 5 RTS Output reserved –
5
1 or 5 TxD Output TxD+ Output
6
1 or 5 CTS Input reserved –
7
1 or 5 DTR Output TxD- Output
8
1 or 5 RI Input reserved –
9
1 or 5 GND Mass GND Mass
10
1 or 5 +5 V VCC n.c. –
11
2 or 6 DCD Input RxD+ Input
12
2 or 6 DSR Input reserved –
13
2 or 6 RxD Input RxD- Input
14
2 or 6 RTS Output reserved –
15
2 or 6 TxD Output TxD+ Output
16
2 or 6 CTS Input reserved –
17
2 or 6 DTR Output TxD- Output
18
2 or 6 RI Input reserved –
19
2 or 6 GND Mass GND Mass