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Chapter 1 Hardware overview 31
Nortel VPN Router Installation — VPN Router 1010/1050/1100
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
Table 7 describes the LEDs on the 56/64K CSU/DSU WAN interface card.
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
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.
56/64K
DDS
Blue LED
Yellow LED
Red LED
Green LED
CONN LED
RX/TX LED
ADSL
RX/TX
CONN