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Chapter 1: Understanding HDSL and the Express L768/L1.5
Front Panel
Figure 1-5 shows the front panel of the Express L768/L1.5. The indicators are
divided into LAN functions, WAN functions, and Test functions.
Indicators
TX/RX
LI
LOOP/LOOP1
LINK/LOOP2
10
Flashes when transmitting and receiving data on the
10BaseT connector.
Link integrity. Illuminates when there is a good
connection between the Express L768/L1.5 and the
Hub/NIC card.
Flashes when loop 1 (pins 1 and 2 on RJ-45) is not
in sync. Solid when loop 1 is in sync.
On Express L768: Illuminates when either PPP or
Frame Relay has an active connection.
On Express L1.5: Flashes when loop 2 (pins 4 and
5 on RJ-45) is not in sync. Solid when loop 2 is in sync.
Express L768/L1.5 User Manual
L768
L1.5
Figure 1-5
Express L768/L1.5 Front Panels
61202192L1-1
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