Wan Indicators; Test Indicators; Figure 1-6: Express L128/L128T Leds - ADTRAN Express L128 User Manual

WAN Indicators

PWR
B1
B2

Test Indicators

B1/B2
61202.070L1-1
Chapter 1: Understanding ISDN and the Express L128/L128T
Flashes when the link is inactive; solid when the link is active.
Flashes green when the link is being negotiated; off when the
link is active. After the link is active, B1 flashes green when a
call on B1 channel is in progress; solid green when a call is
connected.
Flashes green when the link is being negotiated; off when the
link is active. After the link is active, B2 flashes green when a
call on B2 channel is in progress; solid green when a call is
connected.
A slow amber flash indicates test in progress; a fast amber
flash indicates test has failed.
Express L128/L128T User Manual
Figure 1-6
Express L128/L128T LEDs
17