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@9 Controller Port [REMOTE]
Connect with a Remote Controller WV-CU20 that only
operates the unit. Connection cable is a 6-conductor
modular type included in the Controller. (RJ-11)
#0 RS-485 Host Port [RS-485 HOST PORT]
Use this when connecting with another WJ-NT204 unit
to operate them from a single controller such as a PC
through the RS-485 daisy chain. Make certain to set the
DIP switch #9 on the front panel to OFF when using this
port. (RJ-11)
For PC
#1 Setup DIP Switch [SETUP]
A 6-bit DIP switch is provided with the following func-
tion. The default position is marked with *. See INSTAL-
LATIONS on how to set these switches.
Bit #
OFF
#1
Open*
Terminate
#2
Open*
Terminate
Receiver*
Transmitter
#3
(Straight)
(
#4
RS-485*
RS-232C
#5
Open*
Terminate
#6
Open*
Terminate
#2 RS-485 Data Port [RS-485 DATA PORT]
Use
this
when
(Panasonic Security) devices such as WJ-MP204 Data
Multiplex Unit, WJ-FS409 Video Multiplexer and so forth
to operate them from a Remote Controller through the
RS-485 chain.
The DIP switch #4 on the rear panel must be set to OFF
when using as an RS-485, or to ON as an RS-232C.
The DIP switch #3 on the rear panel changes terminal
wiring either Straight or Crossover as shown below.
(RJ-11)
This switch is set to OFF for a Receiver, and ON for a
Transmitter when CCTV devices are connected.
14
RS-485
Host port
HOST PORT
6
5
4
3
2
1
GND
A
B
A
B
GND
Transmit
Receive
Straight
RA
3
Receive
RB
2
TA
5
Transmit
TB
4
WJ-NT204
ON
Function/Note
Termination on Transparent
Receiving side
Termination on Transparent
Transmission side
RS-485 DATA PORT wiring
Cross)
exchange
DATA PORT selection
Termination on Host Receiving
side
Termination on Host Transmission
side
connecting
with
other
6
GND
Transmit
For
Matrix
Switcher
For
System Controller
ex.) WV-CU360
#3 RS-232C Data Port [RS-232C DATA PORT]
Use this when communicating with other RS-232
devices through D-Sub 9-pin connector. The pin func-
tion is basically the same as the RS-232C HOST port
on the front panel.
RS-232C Data Port
Signal
No.
name
1
C D
2
R D
3
S D
4
E R
5
S G
6
D R
7
R S
8
C S
PS
Data
•
9
N. C.
#4 Ethernet Port [10BASE-T/100BASE-TX]
Connect the 10/100BASE-T terminal to an Ethernet with
a 10BASE-T or 100BASE-TX cable.
#5 Signal Ground [SIGNAL GND]
#6 AC Inlet [AC IN]
RS-485 Data port
Straight
Crossover
(Receiver)
(Transmitter)
DATA PORT
DATA PORT
5
4
3
2
1
6
5
4
A
B
A
B
GND
GND
A
B
Receive
Receive
Crossover (Transmitter)
TA
3
TB
2
RA
5
RB
4
WJ-NT204
Straight (Receiver)
RA
3
RB
2
TA
5
TB
4
WJ-NT204
RS-232C
q
w er t
y u i o
DATA PORT
Function
Direction as seen from
Receiver carrier
detection
Receiving data
Sensing data
Data connection ready
Signal Ground
Data set ready
Request send
Send enabled
(Not used)
3
2
1
A
B
GND
Transmit
Transmit
Receive
Receive
Transmit
WJ-NT204
Input
Input
Output
Output
–
Input
Output
Input
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