Nortel Networks Accelar 1050 - Manual (Page 32)

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Chapter 1 Hardware overview
NN46110-313 02.01
Table 8 describes the LEDs on the ADSL WAN interface card.
T1/E1 CSU/DSU WAN interface card LEDs
Figure 12 shows the LEDs on the T1/E1 CSU/DSU WAN interface card.
Figure 12
LEDs on the T1/E1 CSU/DSU WAN interface card
Table 8 LED indicators on the ADSL WAN interface card
CONN LED Tx/Rx LED Description
Steady green Steady green The ADSL interface card is not initialized; the
software driver is not installed.
Off Off The ADSL interface card is initialized, but has not
established a link with the ADSL network.
Flashing green Off The ADSL interface card is attempting to establish a
link with the ADSL network.
Steady green Off The ADSL interface card has established a link with
the ADSL network.
Steady green Flashing green The ADSL interface card is sending or receiving
network data. (The LED can be dim.)
Note: The brackets of the full-height and half-height T1/E1 CSU/DSU
cards are almost identical. The LEDs on the two cards indicate the same
conditions.
CS160012A
LED 4, Green LED 3, Yellow
LED 1, Red LED 2, Blue