Front Panel; Lan Indicators; Wan Indicators; Test Indicators - ADTRAN Express L128T S User Manual

Front Panel

Figure 1-6 on page 1-11 shows the front panel of the Express L128T S/T.
The indicators are divided into LAN, WAN, and Test functions.

LAN Indicators

TX/RX
LI

WAN Indicators

PWR
B1
B2

Test Indicators

B1/B2
61202070L3-20
Chapter 1. Understanding ISDN and the Express L128T S/T
Flashes green when transmitting data onto the 10BaseT
connector. Flashes yellow when receiving data from the
10BaseT connector.
Link integrity. Illuminates when there is a good connection
between the Express L128T S/T and the Hub/NIC card.
Flashes when the link is deactivated or disconnected; 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 L128T S/T User Manual

Figure 1-6. Express L128T S/T LEDs

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