Nortel Networks 1100, 1050 56/64K CSU/DSU WAN interface card LEDs, ADSL WAN interface card LEDs

Chapter 1 Hardware overview 31

56/64K CSU/DSU WAN interface card LEDs

Figure 10 shows the LEDs on the 56/64K CSU/DSU WAN interface card.

Figure 10 LEDs on the 56/64K CSU/DSU WAN interface card

Blue LED Red LED

56/64K

DDS

Green LED Yellow LED

Table 7 describes the LEDs on the 56/64K CSU/DSU WAN interface card.

Table 7 LED indicators on the 56/64K CSU/DSU WAN interface card

LED	Description
Blue	The blue alarm LED is lit when receiving an upstream failure
	denoted by an alarm indication signal (AIS).
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.
Yellow	The yellow alarm LED is lit when the far-end equipment is in the
	red alarm condition.
Green	The green LED is lit when the condition is normal operation.

ADSL WAN interface card LEDs

Figure 11 shows the LEDs on the ADSL WAN interface card.

Figure 11 LEDs on the ADSL WAN interface card

RX/TX LED

ADSL

RX/TX

CONN

CONN LED

Nortel VPN Router Installation — VPN Router 1010/1050/1100