Cisco AGS+ Hardware Installation And Maintenance page 117

LED
Applique Indicators
The
APP-LHS
the
internal
DCE
data
data
asserted
Loopback
software-controlled
system
diagnostics
request loopbacks
by
default
If the
command
LC
line
appropriate
commands
The
green
ribbon
HSCI
AGS
B-12
Hardware
Installation
RT
Receive Send Timing
Timing and
and
transmitter
receiver
loopback
during
CA
Available indicates
that
DTE
DTE
and from
to the Available
DSU
DCE
and from
the
to
LA
circuit Loopback
When
functions
in an internal or external
is
verify the between
to links
DSU
LC
the
in
LC
inhibited
by software
is
DSU LC
you must
supports
before be used
can
it If
LC
To
disable
use no
the
software
optional publication
OK
indicator
after
lights
ER
cable
error indicator
lights
APP-LHS
card and
system the
and
Maintenance
ST
LEDs
indicate
The
clock
source external
is
DSU
DCE
the data service unit
TA
DTE
indicates the
Data
transmission can
begin
only
LB
Circuit and Loopback
LA
LB LC
and
lit Loopback
mode
loopback
diagnostic
DTE DCE
LA
and
the
DSU
DCE
sent the
by
is
to
enable
with hssi external-loop-request
it the
LC
remain
not used should
is
it
hssi
external-loop-request configuration
for more
information
the software
has
performed
when
ribbon
the internal
applique is installed
incorrectly
clock
that present inside
is
signal
normal
during operation
and
is send
prepared to
and
send receive
is prepared to
CA
TA
both have been
after and
LC
Circuit
are
LI
Internal indicate
that
These
enable the system
loopbacks
DTE
and LB
from
sent the
are
from
request loopbacks the
configuration
disabled avoid noise on
to
command
Refer
on
using these
configuration
The
verification
its red
startup
which between
located
cable
is
and
receive
the
to
DTE
the
the
to
the