Robustel R3000 Lite User Guide - Manual (Page 15)

Robustel GoRugged R3000 Lite User Guide
RT_UG_R3000 Lite_v.1.0.0 23.12.2013 14 / 113
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2.2 PIN assignment
DB9 Female Connector
PIN Debug RS232 RS485 (2-wire) Direction
1 Data+ (A) -
2 RXD R3000 Lite

Device
3 TXD Device

R3000 Lite
4 DRXS Device

R3000 Lite
5 GND GND -
6 Data- (B) -
7 RTS Device

R3000 Lite
8 CTS R3000 Lite

Device
9 DTXD R3000 Lite

Device
2.3 USB interface
USB interface is used for batch firmware upgrade, cannot used to
send or receive data from slave devices which with USB interface.
Users can insert an USB storage device, such as U disk or hard disk,
into the router’s USB interface, if there is configuration file or
firmware of R3000 Lite inside the USB storage devices, R3000 Lite
will automatically update the configuration file or firmware. Details
please refer to section
3.13 .
PIN Power
10 Positive
11 Negative
12 GND
USB