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Bengal (VL-EPMe-30) Reference Manual
25
Interfaces and Connectors
User I/O Connector
Table 11 lists the pinout of the 50-pin User I/O connector (J18).
Table 11: J18 User I/O Connector Pinout
Pin
Signal
Pin
Signal
1
Ground
2
RXD1 (RS-232)
RXD1
– (RS-422/485)
3
CTS1 (RS-232)
RXD1+ (RS-422/485)
4
Ground
5
TXD1 (RS-232)
TXD1
– (RS-422/485)
6
RTS1 (RS-232)
TXD1+ (RS-422/485)
7
Ground
8
RXD2 (RS-232)
RXD2
– (RS-422/485)
9
CTS2 (RS-232)
RXD2+ (RS-422/485)
10
Ground
11
TXD2 (RS-232)
TXD2
– (RS-422/485)
12
RTS2 (RS-232)
TXD2+ (RS-422/485)
13
Ground
14
Aux I
2
C Clock
15
Aux I
2
C Data
16
Ground
17
Battery input
18
GPIO2
19
Ground
20
GPIO1
21
+3.3 V power for LEDs
22
Ground
23
Ethernet 0 LED
24
Ethernet 1 LED
25
USB1 +5.0 V
26
USB1 Data +
27
USB1 Data
–
28
USB2 +5.0 V
29
USB2 Data +
30
USB2 Data
–
31
USB3 +5.0 V
32
USB3 Data +
33
USB3 Data
–
34
USB4 +5.0 V
35
USB4 Data +
36
USB4 Data
–
37
+5 V (Protected)
38
Programmable LED
39
Speaker
40
Pushbutton reset
41
Power button
42
Ground
43
USB5 +5.0 V
44
USB5 Data +
45
USB5 Data
–
46
Ground
47
USB5 +5.0 V
48
No connect
49
No connect
50
Ground
5
5