User's Manual

MDC-7000P/7900P Series Chapter 11 Appendix
0093169006-05E 11-15
Datum
DTM Datum reference
Chec k s u
m
Reference datum
Altitude offset, m WGS84
Lon offset min, E/W WGS72
Lat offset min, N/S SGS85
Local datum subdivision code PE90
Local datum User defined
$ -- DTM,
ccc
,a,
x.x
,
a
,
x.x
,
a
,
x.x
,
ccc
*hh<CR><LF>
W72 W72
S85 S85
P90 P90
Reference Local
datum
datu
m
W84 W84
-999
Alarm and alert handling
ALF Alert sentence
Ti
me o
f
l
ast
Ch
ec
k
su
m
c
h
ange
Al
ert text
E
sca
l
a
ti
on coun
t
er,
0
t
o
9
S
equent
i
a
l
R
ev
i
s
i
on counter,
1
to
99
message
Al
ert
i
nstance,
1
to
999999
id
ent
if i
er,
0
to
9
Al
ert
id
ent
if i
er
S
entence
M
anu
f
acturer mnemon
i
c co
d
e
num
b
er,
1
to
2
Al
ert state,
A
,
S
,
N
,
O
,
U
or
V**
T
ota
l
num
b
er o
f
ALF
sentences
Al
ert pr
i
or
i
ty,
E
,
A
,
W
or
C*
f
or t
hi
s message,
1
to
2
Al
ert category,
A
,
B
or
C
N
ote
**
Al
ert state
V
=
A
c
ti
ve-
U
nac
k
now
l
e
d
ge
N
o
t
e
*
Al
er
t
pr
i
or
it
y
S
=
A
c
ti
ve-
Sil
ence
d
E
=
E
mergency
Al
erm
(f
or use w
i
t
h
B
r
id
ge
Al
ert
M
anagement
)
A
=
A
ct
i
ve-
A
c
k
now
l
e
d
ge or act
i
ve
A
=
Al
arm
O
=
A
ct
i
ve-
R
espons
ibili
ty trans
f
erre
d
W
:
W
arn
i
ng
U
=
R
ect
if i
e
d
-
U
nac
k
now
l
e
d
ge
C
=
C
aut
i
on
N
=
N
orma
l
ALC Cyclic alert list
ALC,
Ch
ec
k
su
m
Addi
t
i
ona
l
Al
ert entr
i
es
R
ev
i
s
i
on counter
Al
ert entry
1
Al
er
t
i
ns
t
ance
Al
ert
id
ent
if i
er
M
anu
f
acturer mnemon
i
c co
d
e
N
um
b
er o
f
a
l
ert entr
i
es
S
equent
i
a
l
message
id
ent
if i
er,
00
to
99
S
entence num
b
er,
01
to
99
T
ota
l
num
b
er o
f
sentences
f
or t
hi
s message,
01
to
99
ARC Alert command refused
c*hh<CR><LF>
Reles e time Chec k s u
m
Note*
Refused alert command, A, Q, O or S*
A: Acknowledg e
Alert instance, 1 to 999999
Q: Request / repeat information
Alert identifier
O: Responsibili ty transfer
Manuf acturer mnemonic code
S: Silence
x.x,
……,
aaa,
x.x,x.x,x.x*hh<CR><LF>
$ -- ARC, hhmmss.ss
,
aaa,
x.x,x.x,
$ --
xx,xx,xx,
x.x,
aaa,
x.x,x.x,
$ -- ALF, x
,x,x, hhmmss.ss,a,a,a,
aaa,
x.x,x.x,x.x,x, c---c *hh<CR><LF>