Alpha Telecom UT3620 Triple NT1, Руководство по установке

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The Line Status LED will flash green eight times
per second while synchronizing with the ISDN
line, then once per second to indicate the
U-Interface has synchronized. Repeat this step
for the remaining U-Interfaces.
If the LED does not flash at all, or does not slow to
once per second, there could be a problem with
the ISDN line. To verify the ISDN line, try a
different U-Interface port, preferably one that is
known to work. If the ISDN Line in question fails
on the working port, try verifying the cable has
connected solidly or try an RJ-45 to RJ-45 cable.
An alternative test is to plug a known working
ISDN Line into the U-Interface port that is in
question. If the working ISDN Line works on the
U-Interface port in question, then try the steps
above for verifying the ISDN Line in question.
If the U-Interface port fails with the known good
ISDN Line, or the ISDN Line works on another
port, contact technical support.
Step 4: Connect one end of the RJ-45 to RJ-45
cable provided to one of the S/T connectors on
the UT3620. Connect the other end to the TE.
This is illustrated in
Figure 6 on the next page.
The Line Status LED will illuminate solid green
indicating that the TE has synchronized with the
ISDN line. Repeat this step for the remaining
S/T-Interfaces.
5 UT3620 Triple NT1 Installation Guide