3
4
4
4
4
...
.
CONNECTING
CONNECTING
CONNECTING
CONNECTING
THE
THE
THE
THE
KEYBOARD
KEYBOARD
KEYBOARD
KEYBOARD
●
Power
Power
Power
Power
supply:
supply:
supply:
supply:
D
D
D
D
C
C
C
C
12V/
12V/
12V/
12V/
500MA
500MA
500MA
500MA
●
Data
Data
Data
Data
interface
interface
interface
interface
:::
:
RS485-
RS485-
RS485-
RS485-
/RS485+
/RS485+
/RS485+
/RS485+
RS485,
RS485,
RS485,
RS485,
pay
pay
pay
pay
attention
attention
attention
attention
to
to
to
to
polarity:
polarity:
polarity:
polarity:
No.1
No.1
No.1
No.1
of
of
of
of
the
the
the
the
KBD
KBD
KBD
KBD
KIT
KIT
KIT
KIT
is
is
is
is
RS485+,
RS485+,
RS485+,
RS485+,
No.2
No.2
No.2
No.2
is
is
is
is
RS484-
RS484-
RS484-
RS484-
NOTE:
NOTE:
NOTE:
NOTE:
①
In
In
In
In
directly
directly
directly
directly
control
control
control
control
mode,
mode,
mode,
mode,
must
must
must
must
use
use
use
use
KBD
KBD
KBD
KBD
KIT
KIT
KIT
KIT
connect
connect
connect
connect
board
board
board
board
that
that
that
that
is
is
is
is
made
made
made
made
up
up
up
up
of
of
of
of
RJ-45
RJ-45
RJ-45
RJ-45
connector
connector
connector
connector
and
and
and
and
12VD
12VD
12VD
12VD
C
C
C
C
power
power
power
power
supply
supply
supply
supply
...
.
②
Decide
Decide
Decide
Decide
on
on
on
on
a
a
a
a
suitable
suitable
suitable
suitable
location
location
location
location
for
for
for
for
the
the
the
the
keyboard
keyboard
keyboard
keyboard
and
and
and
and
KBD
KBD
KBD
KBD
KIT
KIT
KIT
KIT
...
.
The
The
The
The
keyboard
keyboard
keyboard
keyboard
must
must
must
must
be
be
be
be
within
within
within
within
8
8
8
8
meters
meters
meters
meters
of
of
of
of
the
the
the
the
KBD
KBD
KBD
KBD
KIT
KIT
KIT
KIT
...
.
The
The
The
The
KBD
KBD
KBD
KBD
KIT
KIT
KIT
KIT
must
must
must
must
be
be
be
be
within
within
within
within
2
2
2
2
meters
meters
meters
meters
of
of
of
of
the
the
the
the
nearest
nearest
nearest
nearest
suitable
suitable
suitable
suitable
electrical
electrical
electrical
electrical
outlet.
outlet.
outlet.
outlet.
③
Receiver
Receiver
Receiver
Receiver
wiring
wiring
wiring
wiring
should
should
should
should
be
be
be
be
in
in
in
in
place
place
place
place
before
before
before
before
installing
installing
installing
installing
the
the
the
the
keyboard
keyboard
keyboard
keyboard
...
.
One
One
One
One
keyboard
keyboard
keyboard
keyboard
can
can
can
can
directly
directly
directly
directly
control
control
control
control
maximum
maximum
maximum
maximum
128
128
128
128
pcs
pcs
pcs
pcs
integrated
integrated
integrated
integrated
high-
high-
high-
high-
speed
speed
speed
speed
domes
domes
domes
domes
...
.
④
T
T
T
T
he
he
he
he
Communication
Communication
Communication
Communication
to
to
to
to
the
the
the
the
keyboards
keyboards
keyboards
keyboards
is
is
is
is
RS-4
RS-4
RS-4
RS-4
85
85
85
85
...
.
Maximum
Maximum
Maximum
Maximum
cable
cable
cable
cable
distance
distance
distance
distance
for
for
for
for
RS-4
RS-4
RS-4
RS-4
85
85
85
85
communication
communication
communication
communication
over
over
over
over
24-gauge
24-gauge
24-gauge
24-gauge
wire
wire
wire
wire
is
is
is
is
(1219
(1219
(1219
(1219
M
M
M
M
).
).
).
).
The
The
The
The
recommends
recommends
recommends
recommends
using
using
using
using
shielded
shielded
shielded
shielded
twisted
twisted
twisted
twisted
pairs
pairs
pairs
pairs
cable
cable
cable
cable
that
that
that
that
meets
meets
meets
meets
or
or
or
or
exceeds
exceeds
exceeds
exceeds
the
the
the
the
basic
basic
basic
basic
requirements
requirements
requirements
requirements
for
for
for
for
EIA
EIA
EIA
EIA
RS-4
RS-4
RS-4
RS-4
85
85
85
85
applications.
applications.
applications.
applications.
⑤
At
At
At
At
the
the
the
the
wall
wall
wall
wall
block
block
block
block
wire
wire
wire
wire
the
the
the
the
transformer
transformer
transformer
transformer
to
to
to
to
pins
pins
pins
pins
3
3
3
3
and
and
and
and
4.
4.
4.
4.
Polarity
Polarity
Polarity
Polarity
is
is
is
is
unimportant.
unimportant.
unimportant.
unimportant.
⑥
Replace
Replace
Replace
Replace
the
the
the
the
cover
cover
cover
cover
on
on
on
on
the
the
the
the
wall
wall
wall
wall
block.
block.
block.
block.
A
A
A
A
double-sided
double-sided
double-sided
double-sided
sticky
sticky
sticky
sticky
pad
pad
pad
pad
is
is
is
is
provided
provided
provided
provided
to
to
to
to
mount
mount
mount
mount
the
the
the
the
wall
wall
wall
wall
block.
block.
block.
block.
Secure
Secure
Secure
Secure
the
the
the
the
wall
wall
wall
wall
block
block
block
block
to
to
to
to
a
a
a
a
suitable
suitable
suitable
suitable
surface
surface
surface
surface
...
.
⑦
plug
plug
plug
plug
the
the
the
the
data
data
data
data
cable
cable
cable
cable
of
of
of
of
the
the
the
the
keyboard
keyboard
keyboard
keyboard
