32
S
CANNER AND
C
ABLE
T
ERMINATIONS
MS1890-38, Low Speed USB
Pin Function
1 Ground
2 RS232 Transmit Output
3 RS232 Receive Input
4 RTS Output
5 CTS Input
6 USB D+
7 V USB
8 USB D-
9 +5VDC
10 Shield Ground
MS1890-40, Full Speed USB
Pin Function
1 Ground
2 RS232 Transmit Output
3 RS232 Receive Input
4 RTS Output
5 CTS Input
6 USB D+
7 V USB
8 USB D-
9 +5VDC
10 Shield Ground
Figure 15.