NIOT-E-NPIX-RS232: Extension module for RS-232
23/35
Pinning of the RS-232 connector
Pin
Signal
Description
1
n.c.
Not connected
2
RX_IN
RxD (Receive data)
3
TX_OUT
TxD (Transmit data)
4
n.c.
Not connected
5
ISO_GND
Ground (isolated)
6
n.c.
Not connected
7
n.c.
Not connected
8
n.c.
Not connected
9
n.c.
Not connected
D-Sub socket connected to PE
Table 7: RS-232 interface
Pinning of the host interface
Connector
Pin Signal
Description
Pin Signal
Description
1
n.c.
Not connected
27
n.c.
Not connected
2
n.c.
Not connected
28
n.c.
Not connected
3
n.c.
Not connected
29
n.c.
Not connected
4
n.c.
Not connected
30
n.c.
Not connected
5
n.c.
Not connected
31
n.c.
Not connected
6
n.c.
Not connected
32
n.c.
Not connected
7
GND
Reference potential
33
n.c.
Not connected
8
GND
Reference potential
34
n.c.
Not connected
9
GND
Reference potential
35
n.c.
Not connected
10
GND
Reference potential
36
BCM22(GPIO)
-
11
ID_SD (BCM0)
-
37
n.c.
Not connected
12
ID_SC (BCM1)
-
38
BCM23(GPIO)
-
13
+3V3
-
39
n.c.
Not connected
14
+3V3
-
40
BCM25(GPIO)
-
15
n.c.
Not connected
41
n.c.
Not connected
16
n.c.
Not connected
42
BCM27(GPIO)
-
17
n.c.
Not connected
43
n.c.
Not connected
18
n.c.
Not connected
44
n.c.
Not connected
19
n.c.
Not connected
45
n.c.
Not connected
20
BCM14(BCM_TXD0)
-
46
n.c.
Not connected
21
n.c.
Not connected
47
n.c.
Not connected
22
BCM15(BCM_RXD0)
-
48
n.c.
Not connected
23
n.c.
Not connected
49
n.c.
Not connected
24
n.c.
Not connected
50
n.c.
Not connected
25
n.c.
Not connected
51
GND
Reference potential
26
n.c.
Not connected
52
BCM26(GPIO)
-
Table 8: Pinning of the host interface of NIOT-E-NPIX-RS232
netPI Extension Modules | NPIX
DOC171201HW01EN | Revision 1 | English | 2018-01 | Released | Public
© Hilscher 2018
