2
3
4
6
8
10
11 12 13 14
9
5
7
1
Note:
1: Mounting hole for the power cord buckle
2: Power port
3: Power switch
4: 24 10/100/1000M Ethernet ports
(GE1/0~GE1/23)
5: 24 LEDs for Ethernet ports
6: Four GE copper ports (GE0/0~GE0/3)
7: Four LEDs for GE copper ports
8: Two SFP fiber/copper combo ports
9: Two LEDs for SFP fiber/copper combo ports
10: USB slot
11: Console/AUX combo port
12: SD card slot
13: FUNC button
14: (From left to right) SD LED, USB LED, PWR_BAK
LED, PWR LED, SYS LED
LED Indicators
Table 1-3 LED Indicators on the RSR20-X-28 Router
LED
Panel Identification
State
Meaning
System status LED
SYS
Off
The router is not receiving power, or the router is
reeving power but the system fails.
Solid green
The system is operational.
Blinking green
The system starts up.
Solid red
The system is faulty.
Active power status
LED
PWR
Solid green
Power supply is operational.
Solid yellow
No power supply is available.
Backup power status
LED
PWR_BAK
Solid green
Two or more than two backup power are
receiving power.
Off
One or none backup power is receiving power.
USB device status
USB
Off
No USB device is inserted.
Solid green
The USB device is initialized and is not
exchanging data.
Blinking green
The USB device is exchanging data.
