Harris Constellation, Руководство по установке и обслуживанию

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Constellation™ 2002 June 20
11-6
Figure 11-1: Constellation Radio alarm path
Receiver
As
se
mbly
HLM
M
odem
AC
U
M12 Unit
8
.. .
DS3
or
T
ransmit
te
r
As
se
mbly
Mode
m
T2
SY
NC LO
SS
T1
LO
CAL
CLK
*
TRIB
O
U
TP
UT
FA
IL
*
SYNC LOS
S
M12 RX C
LK
*
DS3 OUTPUT
FA
IL
*
CARRIER L
O
SS
FEC LOCK
S
Y
NTH L
O
CK
ALM
*
AG
C
SYNTH L
O
CK
ALM
*
OUTPUT P
O
WER
LOW
N
O
IF
IN
P
U
T
TX
ENCODER
TX
LE
VEL
AC
U
HLM
1
STB
Y
M12 Unit
8
.. .
DS3
or
1
STB
Y
T
ransmit
te
r
As
se
mbly
Mode
m
HLM
Receiver
A
ssembly
HLM
Modem
TX T
O
MODE
M
AL
M
M1
2 TX
CLK
TX T
O
HL
M
ALM
* T
his
al
arm normal
ly
sign
ifie
s a f
a
ilure
in
t
he card.
Fir
st,
ch
e
ck
to
s
ee
if
th
e
f
a
ult
lies
in
th
e
c
ar
d
.
If
n
ot
, t
h
en
check
th
e
card
t
o
th
e
le
ft of t
he diag
ram.
LE
GEND
155
or
155
or