4 serial ports and alarm port, Serial ports and alarm port, Step 1 – JVC DM-NC40 User Manual
Page 18: Connection/installation, Continued)
18
1-4 SERIAL Ports and ALARM Port
Signal names of SERIAL ports and ALARM port located on the back of the unit are shown
below.
Step 1
Connection/Installation
(Continued)
[SERIAL 1, 2] Serial ports 1, 2
(Dsub 9-pin, male)
When viewing from the back of unit
SERIAL 1 port
(when set to RS232C)
SERIAL 2 port
[ALARM] input port for alarm and output port for control
(Dsub 15-pin, female)
Pin no.
Signal name
1
NC
2
RXD
3
TXD
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
SERIAL 1 port
(when set to RS485)
Pin no.
Signal name
1
NC
2
RX –
3
TX –
4
NC
5
GND
6
NC
7
TX +
8
RX +
9
NC
For detailed setup concerning the SERIAL ports,
੬ see “Serial Port Setup screen”, page 40)
When viewing from
the back of unit
Pin no.
Signal name
1
OUTPUT 1
2
OUTPUT 2
3
OUTPUT 3
4
OUTPUT 4
5
OUTPUT 5
6
OUTPUT 6
7
OUTPUT 7
8
OUTPUT 8
9
INPUT 1
10
INPUT 2
11
INPUT 3
12
INPUT 4
13
GND
14
GND
15
GND
Alarm input port
•
Signal length setting (
੬ Trigger Duration, page 38)
•
Polarity setting (
੬ Trigger, page 38)
•
Connection to 5V power, 10k
Ω
internally
•
Current of 10mA or less for input terminal
•
Open collector output equivalent
•
Polarity setting (
੬ OutputPin 1 ~ 8, page 39)
•
External connection capacity: DC5V, 10mA
Output terminal
Unit
Alarm input port
Example of sensor
INPUT
1~4
OUT
R
DC5V
Alarm input equivalent circuit
GND
GND
R
VCC
5V
Unit
Output terminal
Example of controlled device
OUTPUT
1~8
IN
R
DC5V
GND
GND