Csu Status Leds; Table 3-1. Network Status Led Descriptions - ADTRAN TSU 610 User Manual

CSU Status LEDs

LED
OK
Test
Alarm
LOS
YEL
ERROR
61200610L2-1

Table 3-1. Network Status LED Descriptions

Color
Indicates the operation is in the normal
Green
mode. No alarms have been detected.
Indicates that the network interface is op-
erating in a test mode. This includes a
self-test or loopback tests. When illumi-
nated, this LED also indicates that normal
data flow is not occurring on the Network
Interface.
Red Red when an alarm (RED, BLUE, YEL-
LOW) is active on the Network Interface.
Otherwise, it is Off.
To view an alarm condition, select the
ACTIVE ALARM menu item or select
ALARM by pressing
minal.
If the alarm conditions have been correct-
ed, the alarm which caused the activation
of the ALARM LED can be viewed under
the UNIT HISTORY menu.
Red Red when there is loss of signal on the
Network. Otherwise, it is Off.
Red Red when a yellow alarm is present. Oth-
erwise, it is Off.
Flashes RED when CRC, XS0, BPV, or FER
Red
errors are detected on the Network Inter-
face.
TSU 610 User Manual
Chapter 3. Operation
Description
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