Robustel R1520 - Chapter 1 Product Overview; Introduction; Package Contents

Robustel R1520 Hardware Manual
RT056_HM_R1520 9/12
5. USB Interface
Feature
Operation
Firmware upgrade
The USB interface can be used for batch firmware upgrades, but it cannot send or receive data with slave devices connected to
the USB interface. The user can insert a USB storage device, such as a U disk or a hard disk, at the USB interface. If there is a
configuration file or router firmware in the USB storage device, the router will automatically update the configuration file or
firmware. For details, please refer to "4.2.6 USB".
6. LED Indicator
Name
Color
Status
Description
RUN
Green
On, solid
Router is powered on (System is initializing)
On, blinking
Router starts operating
Off
Router is powered off
MODEM
Green
On, solid
Link connection is working
On, blinking
Data is sent and received
Off
Link connection is not working
USR
USR-OpenVPN
Green
On, solid
OpenVPN connection is established
Off
OpenVPN connection is not established
USR-IPsec
Green
On, solid
IPsec connection is established
Off
IPsec connection is not established
RSSI
Green
On, solid
Signal Level: Best Signal Level
Wireless module: 21-31dB (signal strength)
On, slow
blinking (1s)
Signal Level: Average Signal Level
Wireless module: 11-20dB (signal moderate)
On, fast
blinking
Signal Level: Abnormal Signal Level
Wireless module: 21-31dB (signal weak)
Off
No signal
WLAN
Green
On, solid
Wi-Fi is enabled and working properly
Off
Wi-Fi is disabled or not working properly
Note: You can choose the display type of USR LED. For more details, please refer to
RT123_SM_RobustOS Software Manual, Services > Advanced > System >System Settings > User LED Type.
7. Ethernet Ports. There are five Ethernet ports on R1520, including ETH0 (PoE-PD Optional), ETH1, ETH2, ETH3
and ETH4. Each has two LED indicators. The green one is a link indicator but the yellow one doesn’t mean
anything. For details about status, see the table below.
Ethernet LED Indicator
Status
Description
Link indicator
(Green)
On, solid
Connection is established
On, blinking
Data is being transferred
Off
Connection is not established