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CONFIDENTIAL
DOC-USR-0259-02
15
______________________________________________________________________________________
Z3 Technology, LLC
♦
100 N 8
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ST, STE 250
♦
Lincoln, NE 68508-1369 USA
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+1.402.323.0702
3.0
30-0104
The 30-0104 board has the following connections:
Figure 8 Top side of 30-0104
3.1
RS485 and RS232 Serial Port Header
The J4 header contains a RS485 port and a RS232 port.
The RS485 port is mapped to the UART at QUP13 of the Qualcom processor, with QUP13_RFR serving as the
direction control. The RS232 is mapped to the UART at QUP15.
Additionally, J4 provides a 3.3V power source with up to 100mA available.
The pin assignments of J4 are composite shown in the table below.
Pin
Signal
1
Ground
2
RS232 RXD
3
RS232 TXD
4
RS485 B
5
RS485 A
6
+3.3V, 100mA max
Table 6 J4 Pin Assignments