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COM1
45
422TX-/485D-/DCD#
47
COM1 422TX+/485D+/RXD
49
COM1 422RX+/TXD
51
COM1 422RX-/DTR#
53
GND
COM2
55
422TX-/485D-/DCD#
57
COM2 422TX+/485D+/RXD
59
COM2 422RX+/TXD
61
COM2 422RX-/DTR#
63
GND
Table 1-2 Pin Description of SMD 64-Pin Connector
46
COM1 DSR#
48
COM1 RTS#
50
COM1 CTS#
52
COM1 RI#
54
GND
56
COM2 DSR#
58
COM2 RTS#
60
COM2 CTS#
62
COM2 RI#
64
GND
6
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