Features
When an SD card or a USB flash disk is inserted into the device, press the FUNC button. Then, the system searches
for the installation packages and configuration files that are applicable to the current device in the root directories of the
SD card and USB flash disk in sequence. After successfully finding the corresponding installation packages and
configuration files, the system checks the validity of the files and then upgrades the device by using the installation
packages and configuration files. After the upgrade, the system resets and restarts based on the new software versions
and configuration files.
When NO SD card or a USB flash disk is inserted into the device, press the FUNC button to reset the system.
When a storage medium is inserted, the system scans for an SD card first. If no SD card is inserted or the inserted
SD card does not contain applicable installation packages or configuration files, the system scans for a USB flash
drive. If neither the inserted SD card nor the USB flash drive contains applicable installation packages or
configuration files, the software versions and configuration files are not upgraded. Only the system resets, and
restarts based on the original software versions and configuration files.
One-click upgrade of the software version must strictly follow the
“Configuring Reliability” chapter in the related
software configuration guide. After the system has scanned an SD card or USB flash drive, press the FUNC
button shortly.
1.3 About Service Modules
This section describes the features of service modules supported by the RSR20-X-28 series router.
1.3.1 HSIC-2HS Synchronous Interface Module
Product model:
HSIC-2HS
Image and Indicators
Figure 1-9 HSIC-2HS High-Speed Synchronous Serial Interface Module
Each module has an interface status indicator (
Link/ACT
indicator) and the module
RDY
indicator. And an OFL hot
swapping button is provided.
The following table describes LED indicators.
Table 1-15 LED Indicators on the HSIC-2HS Module
LED
Panel Identification
State
Meaning
