1-9
Cisco CGS 2520 Hardware Installation Guide
OL-31444-01
Chapter 1 Product Overview
LEDs
SD Flash Memory Card LED, page 1-12
Power Supply-Side LEDs, page 1-14
Switch Panel LEDs
Figure 1-6 Switch LEDs (Cable Side)
System LED
1SYS (system) 9OUT (alarm output)
2CON (console) 10 PSU1 (power supply 1)
3USB 11 PSU2 (power supply 2)
4SD (SD flash memory card) 12 PoE1
1. Only on the Cisco CGS-2520-16S-8PC switch.
5IN1 (alarm input 1) 13 Express Setup button
6IN2 (alarm input 2) 14 Ethernet ports
7IN3 (alarm input 3) 15 SFP module port
8IN4 (alarm input 4) 16 10/100/1000 port
Table 1-3 System LED
Color System Status
Off System is not powered on
Blinking green POST1 is in progress
Green System is operating normally
Amber System is receiving power but is not functioning properly
207198

21 3456789 10 11 12 13

14 15 16