Nortel Networks 2700 Manual De Usuario
Chapter 2 Cabling the VPN Router and turning the power on 47
Nortel VPN Router Installation — VPN Router 2700
T1/E1 CSU/DSU WAN interface card LEDs
shows the LEDs on the T1/E1 CSU/DSU WAN interface card.
Figure 16
LEDs on the T1/E1 CSU/DSU WAN interface card
Table 12
LED indicators on the T1/E1 CSU/DSU WAN interface card
LED
Indicator
Description
LED 1
Red
The red alarm LED is lit when a loss-of-signal (LOS) or
out-of-frame (OOF) condition is detected on the receive
signal.
LED 2
Blue
The blue alarm LED is lit when receiving an upstream
failure denoted by an alarm indication signal (AIS).
LED 3
Yellow
The yellow alarm LED is lit when the far-end equipment
is in the red alarm condition.
LED 4
Green
The green LED is lit when the condition is normal
operation.
CS160012A
LED 4, Green
LED 3, Yellow
LED 1, Red
LED 2, Blue