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NANO-GX User Manual

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The 14-pin serial port connector connects to the COM 2 serial communications channels.

COM2 is a multi function channel. In default mode COM 2 is an RS-232 serial

communication channel but, with the JP4 jumper, can be configured as either an RS-422

or RS-485 serial communications channel.

Figure 3-21: Serial and RS-422/485 Port Connector Location

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 DCD 2 DSR

3 RXD 4 RTS

5 TXD 6 CTS

7 DTR 8 RI

9 GROUND 10 GROUND

11 TXD485+ 12 TXD485#

13 RXD485+ 14 RXD485#

Table 3-22: Serial and RS-422/RS-485 Port Connector Pinouts

3.2.20 Serial Port Connectors (COM2)

CN Label: CN14, CN15, CN16, CN17

CN Type:

10-pin header (2x5)

CN Location:

See

Figure 3-22

CN Pinouts:

See

Table 3-23

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 136 137

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