User's Manual

Operational Specifications
3.1.3 RS-422 Connector Pin (J3)
Rev.1.01
Oct.28.2008 3-5
REJ10J1351-0101
3
3.1.3 RS-422 Connector Pin (J3)
The M3A-HS19 is provided with an RS-422 connector pin (J3).
Figure 3.1.4 shows the pin assignment for the RS-422 connector pin (J3).
Top view of the
c
omponent side
Board edg
e
Top view of the
solder side
1
2
3
4
4
3
2
1
J3
RS-422
B
oard edge
Figure 3.1.4 Pin assignment for RS-422 Connector Pin (J3)
Table 3.1.3 lists the pin assignment for the RS-422 connector pin (J3).
Table 3.1.3 Pin assignment for RS-422 Connector Pin (J3)
Pin no. Signal Name Pin no. Signal Name
1 RXD-a (PD3/IRQ3/RXD1/DACK0) 3 TXD-z (PD2/IRQ23/TXD1/DREQ0)
2 RXD-b (PD3/IRQ3/RXD1/DACK0) 4 TXD-y (PD2/IRQ23/TXD1/DREQ0)