USER’S MANUAL
Section 13: Deep Tech Information and Troubleshooting 276
Normal
status
is
indicated
by
the
LED
being
lit.
Rapid
flashing
indicates
loss
of
the
ISDN
line
at
the
lowest
(physical,
OSI
Layer
1)
level,
or
use
of
the
incorrect
jack
on
the
ISDN
interface
card
(use
the
lower,
RJ
‐
11
style
jack
if
you
are
using
the
built
‐
in
NT1;
i.e.
are
connecting
directly
to
the
raw
copper
2B1Q
circuit).
Slow
flashing
of
this
LED
may
indicate
problems
with
the
Zephyr
Xstream.
ON
This
means
that
the
NT1
is
fully
operational,
and
OSI
layer
1
is
fully
initialized
with
the
BRI
circuit
and
the
rest
of
the
Zephyr/Zephyr
Xstream
*
FLICKERING
A
fast
flash
rate
means
the
NT1
has
not
initialized
to
the
U
interface
(i.e.
the
ISDN
BRI
circuit).
It
is
normal
for
this
to
occur
for
about
30
seconds
or
less
after
the
unit
is
rebooted,
the
ISDN
circuit
connected,
or
the
ISDN
reinitialized.
If
this
state
persists,
the
problem
is
most
likely
the
ISDN
circuit
(about
80%)
although
it
could
be
the
Xstream’s
terminal
adaptor
card
(about
20%).
*
i
ISDN TIP!
IF YOU ARE USING THE "RJ-45" ISDN "S INTERFACE" (4-wire) NOTE:
The ISDN S interface is generally used outside of the USA & Canada. If you are not using the
ISDN U (2-wire) interface you can disregard this LED. In that case, this LED will be
flickering.
FLASHING
A
slow
flash
means
the
NT1
has
completed
initializing
the
U
interface
(the
line
side)
and
is
initializing
the
S
interface
to
the
rest
of
the
Zephyr
Xstream.
If
this
state
persists
for
more
than
40
seconds,
it
is
most
likely
a
hardware
problem
with
the
Zephyr
Xstream.
You
should
“reseat”
the
ISDN
card.
Check
for
foreign
voltage
on
the
ISDN
(you
should
see
about
48
volts
DC
[possibly
pulsing]
on
the
line)
If
the
problem
persists,
contact
Telos
Customer
Support.
OFF
This
is
an
illegal
state
and
should
not
occur.
In
rare
cases
this
could
be
the
ISDN
circuit.
If
disconnecting
the
ISDN
line
causes
the
LED
to
begin
flickering,
suspect
this.
Otherwise,
if
the
Zephyr
Xstream
seems
to
be
booting
up,
it
indicates
a
bad
Terminal
Adaptor
Card
(90%).
You
should
“reseat”
the
ISDN
card.
If
the
problem
persists,
contact
Telos
Customer
Support.
**
ALTERNATING
If
the
state
alternates
between
more
than
one
state,
and
continues
to
cycle
between
those
states,
something
is
wrong.
First,
check
to
see
if
you
have
the
ISDN
plugged
into
the
right
jack.
The
ISDN
(U
interface)
must
be
plugged
into
the
“U”
jack,
which
is
the
lower
jack.
This
is
an
RJ11
Summary of Contents for Zephyr Xstream
Page 2: ......
Page 26: ...USER S MANUAL Section 1 QUICK RESULTS 14...
Page 30: ...USER S MANUAL Section 2 INTRODUCTION Getting to Know the Zephyr Xstream 18...
Page 70: ...USER S MANUAL Section 3 GUIDED TOUR of the HARDWARE 58...
Page 144: ...USER S MANUAL Section 6 AUDIO CODING REFERENCE 132...
Page 164: ...USER S MANUAL Section 8 LIVEWIRETM IP Audio 152...
Page 310: ...USER S MANUAL Appendix 1 Codec Interoperability Information 298...
Page 320: ...USER S MANUAL Appendix 3 ISDN Cause Phrases Values 308...
Page 324: ...USER S MANUAL Appendix 4 Known Working SPID Formats by Telco 312...
Page 356: ...USER S MANUAL Appendix 9 Modular Cable Guide 344...
