Com3 Rs232/Rs422/Rs485 Db9 Connector; Usb Connectors (Reserved) - Nexcom nROK 7251 Series User Manual

Chapter 3: Jumpers and Switches

COM3 RS232/RS422/RS485 DB9 Connector

Connector size: 1 x 10 = 10-pin header
Connector location: J2
10
Pin Definition
1 GND
3 CTS#
5 DTR#_RX-
7 RI#_PW
9 TX_RX+
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1
Pin Definition
2 GND
4 DSR#
6 RX_TX+
8 RTS#
10 DCD#_TX-

USB Connectors (Reserved)

Connector size: 1 x 4 = 4-pin header
Connector location: J7 and J9
1 4
Pin Definition
1 GND
3 USB_N
28
Pin Definition
2 USB_P
4 POWER
nROK 7251 Series User Manual