Cisco 1751 User Manual
Page 24
Chapter 1
Cisco 1751 Router Overview
Front-Panel LEDs
1-8
Cisco 1751 Router Hardware Installation Guide
78-11258-04
1
–
Serial and CSU/DSU
Off.
Green
ISDN
On when the first ISDN B channel is connected.
2-port serial
Blinks when data is being sent to or received from
the port.
VIC-2E&M
VIC-2FXO
VIC-2FXS
VIC-2BRI-NT/TE
SLOT1
Ø
Green
ISDN
On when the first ISDN B channel is connected.
Serial and CSU/DSU
Blinks when data is being sent to or received from
the port.
2-port serial
VIC-2E&M
VIC-2FXO
VIC-2FXS
VIC-2BRI-NT/TE
WIC1-ADSL
1
–
Serial and CSU/DSU
Off.
Green
ISDN
On when the first ISDN B channel is connected.
2-port serial
Blinks when data is being sent to or received from
the port.
VIC-2E&M
VIC-2FXO
VIC-2FXS
VIC-2BRI-NT/TE
Table 1-4
Front-Panel LEDs (continued)
LED
Color
Cards Supported
LED Meaning