Motorola MS4404 用户手册
Symbol MS4404/MS4407 Specifications
4 - 3
Symbol MS4407 Electrical Interface
Figure 4-2
Symbol MS4407 MiniScan Connector
lists the pin functions of the Symbol MS4407 interface.
Table 4-2
Symbol MS4407 USB and Serial Electrical Interface
USB Interface
Serial Interface
Pin No.
Pin Name
Pin No.
Pin Name
1
Trigger
1
Trigger
2
NC
2
TXD Output TTL Only
3
USB +
3
RXD Input TTL Only
4
Connect to Pin 8
4
NC
5
Ground
5
Ground
6
+5V Power
6
+5V Power
7
USB -
7
CTS Input TTL Only
8
Connect to Pin 4
8
RTS Output TTL Only
9
Beeper/Download
9
Beeper/Download
NC = No Connect (Do not connect this pin)