Chapter 1 Product Introduction 5
RDU-A G2 Intelligent Monitoring Unit User Manual
DI/AI1
DI/AI2
DI/AI3
DI/AI4
DI/AI5
DI/AI6
DI/AI7
DI/AI8
Digital/analog input 1 ~ 8
Figure 1-3 IRM-8DIAI card
See Table 1-13 for the interface definition of IRM-8DIAI card.
Table 1-13 Interface description of IRM-8DIAI card
Interface
Type
Silk print
Definition
Digital / analog input 1 ~ 8
RJ45 interface
DI/AI1 ~ DI/AI8
Digital input: passive dry contact;
Analog input: 0 ~ 5V or 4mA ~ 20mA
IRM-8DOAO card (optional)
The IRM-8DOAO card supplies eight digital / analog output interfaces (digital and analog are adaptive), which support
digital/ analog output. Its appearance is shown in Figure 1-4.
DO/AO1
DO/AO2
DO/AO3
DO/AO4
DO/AO5
DO/AO6
DO/AO7
DO/AO8
Digital/analog output 1 ~ 8
Figure 1-4 IRM-8DOAO card
See Table 1-14 for the interface definition of IRM-8DOAO card.
Table 1-14 Interface description of IRM-8DOAO card
Port
Type
Silk print
Definition
Digital / analog input 1 ~ 8
RJ45 interface
DO/AO1 ~ DO/AO8
Digital output: normally-open c
normally-closed contact;
Analog output: 0 ~ 10V
Line sequence definition of RDU-A G2 and expansion cards
See Table 1-15 for the line sequence definition of RDU-A G2 and expansion cards.
Table 1-15 Line sequence definition of RDU-A G2 and expansion cards
RJ45
DO
DI/Smoke
Sensor
COM
DOAO card
DIAI card
1
12V
12V
12V
RTS
0
～
10V
12V
2
NC
3
Normally-closed
NC
NC
TXD
normally-closed
AI_I
4
Disengaging detection
Disengaging
detection
GND
GND
Disengaging
detection
Disengaging
detection
5
GND
GND
GND
GND
6
Normally-open
DI
NC
RXD
Normally-open
DI
7
COM
D
＋
D
＋
COM
8
NC
NC
D
－
D
－
NC
AI_V
Note:
1. The line sequence of RJ45 interface is 1 to 8 from left to right, with the gap downwards;
2. The D+, D- are two kinds of levels of the RS485 differential signal;
3. NC: Not Connected
1.3 Main Functions
The main functions of RDU-A G2 are listed in Table 1-16.
Table 1-16 Main functions of RDU-A G2
Main function
Description
Device monitoring
Realizing camera viewing in data center; getting and handling the data of different intelligent devices and
controlling them through Web interface
