JVC VR601 - Manual (Page 27)

52
6. RS-232 & RS-485 Protocol
6.1 Setup 6.1.1
Us
e a Null Modem
c
able (
the s
tandar
d RS-
232 9 Pin Cable w
ith Pin 2 and Pin 3 ex
changed, s
ee pin
conf
igur
ation c
har
t below
f
or
det
ails
) to c
onnec
t the CO
M 1 on the r
ear
p
anel of
the DVR to a PC.
Fo
r
RS-
485, m
ax
im
um
length of
c
able is
400 m
eter
, and m
ax
im
um
num
ber
of
nodes
is
16.
6.1.2
Set the
RS-
232
or
RS-
485
option to
ON
in the
COM
M
UNICA
T
ION
page of
the s
etup m
enu.
6.1.3
Set the PC c
om
m
unic
ation p
ar
am
eter
s: 9600 bp
s,
No Par
ity
, 8 Dat
a Bit
s, 1 S
top Bit.
6.2 Communication Protocol:
6.2.0 G
en
eral
Comma
nd For
ma
t
<Lead Code = 0x
41>, < Des
t ID >, < Sr
c ID >, <Main c
ategor
y >, <Sec
ond c
ategor
y >, {
<
Num
ber
of
pa
ra
me
ter
s>,<Par
am
eter
1>, <Par
am
eter
2> ..,} <End Code= 0x
4f
>
L
ead
Code =
0x
41
Des
t ID
=
0x
01
Sr
c
ID
=
0x
20
M
ai
n
Categor
y
=
0x
01
ʳ
Key
s and Signals
ʳʳʳʳʳʳ
=
0x
02 Com
m
and
S
ec
on
d
C
at
eg
or
y
=
0
x0
1
H
an
ds
ha
ke
=
0x
02
Reques
t T
im
e/Set T
im
e
= 0x
06 Reques
t Sy
st
em
S
tate
E
nd Code= 0x
4f
53
Th
e
diffe
re
nt c
o
mma
nd ty
pe
s a
nd the
ir
c
o
rr
es
ponding p
ar
ame
te
rs
a
re
a
s follow
s:
6.2.1 Key
s an
d
sig
n
als
PC Send: <0x
41>, <0x
01>, <0x20>, <0x
01>, <Key
V
alue>, <0x
4f
>
< T
h
e v
alu
e o
f a sp
ecif
ic f
ro
n
t p
an
el key
>
D
E
C
H
E
X
KEY
_PLA
Y
1
0
1
KEY
_ST
O
P
3
0
3
KEY
_P
AUSE
4
0
4
KEY
_REC
6 0
6
KEY
_SET
UP
7
0
7
KEY
_ENT
ER
8
0
8
KEY
_SEARCH
10
0A
KEY
_DISPLA
Y
1
1
0
B
KEY
_UP
1
3 0
D
KEY
_DO
W
N
1
4
0
E
KEY
_LEF
T
1
5
0
F
KEY
_RIG
HT
16
1
0
KEY
_MO
N
IT
OR 3
6
2
4
JOG
_L
128
80
JOG_
R
129
81
KEY
_SHUT
T
LE_L8
130
82
(
-
100x
, -
1/16x
)
KEY
_SHUT
T
LE_L7
131
83
(
-
100x
, -
1/16x
)
KEY
_SHUT
T
LE_L6
132
84
(
-
30x
, -
1/8x
)
KEY
_SHUT
T
LE_L5
133
85
(
-
16x
, -
1/8x
)
KEY
_SHUT
T
LE_L4
134
86
(
-
8x
, -
1/4x
)
KEY
_SHUT
T
LE_L3
135
87
(
-
4x
, -
1/4x
)
KEY
_SHUT
T
LE_L2
136
88
(
-
2x
, -
1/2x
)
KEY
_SHUT
T
LE_L1
137
89
(
-
1x
, -
1/2x
)
KEY
_SHUT
T
LE_CT
138
8A
KEY
_SHUT
T
LE_R1
139
8B
(
2x
, 1/2x
)
KEY
_SHUT
T
LE_R2
140
8C
(
4x
, 1/2x
)
KEY
_SHUT
T
LE_R3
141
8D
(
8x
, 1/4x
)
KEY
_SHUT
T
LE_R4
142
8E
(
16x
, 1/4x
)
KEY
_SHUT
T
LE_R5
143
8F
( 30x
, 1/8x
)
KEY
_SHUT
T
LE_R6
144
90 (
100x
, 1/8x
)
KEY
_SHUT
T
LE_R7
145
91
(
100x
, 1/16x
)
SIG
N
AL_REC_IN 163
A3
SIG
N
AL_ALARM_RESET
165
A5
SIG
N
AL_REC_O
U
T
169
A9
SIG
N
AL_ALARM_IN 189
BD
SIG
N
AL_ALARM_O
UT
209
D1
NOT
E
: If
SIG
N
A
L
_A
L
A
RM
_IN
is
r
eques
ted, alar
m
r
ec
or
ding is
per
for
m
ed by
non-
st
op. Pleas
e
trans
m
it
SIG
N
A
L
_A
L
A
RM
_RESET
f
or
s
topping.
*A
bout (
A
, B),
A
m
eans th
e speed
of F
A
S
T
pla
yb
ac
k, B m
eans the
spe
ed of
S
L
OW pla
yb
a
ck.