Nortel Networks 1750 Manual Do Utilizador

34 Chapter 1 Cables and power

NN46110-316 03.01

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 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