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34 Chapter 1 Cables and power
NN46110-316 03.01
Quad T1/E1 CSU/DSU WAN interface card LEDs
The following figure shows the LEDs on the quad T1/E1 channel service unit/
digital service unit (CSU/DSU) WAN interface card.
Figure 11 LEDs on the quad T1/E1 CSU/DSU WAN interface card
The following table describes the LEDs on the quad T1/E1 CSU/DSU WAN
interface card.
Table 12 LED indicators on the quad T1/E1 CSU/DSU WAN interface card
LED Indicator Description
LED 1 Off Port 1 is disabled.
On Port 1 is enabled and operating normally.
Flashing Port 1 is enabled and in an alarm state (red, yellow, or blue).
LED 2 Off Port 2 is disabled.
On Port 2 is enabled and operating normally.
Flashing Port 2 is enabled and in an alarm state (red, yellow, or blue).
LED 3 Off Port 3 is disabled.
On Port 3 is enabled and operating normally.
Flashing Port 3 is enabled and in an alarm state (red, yellow, or blue).
LED 4 Off Port 4 is disabled.
On Port 4 is enabled and operating normally.
Flashing Port 4 is enabled and in an alarm state (red, yellow, or blue).
CS160012A
LED 3 LED 4
LED 1 LED 2