Chapter 1 Product Introduction 7
RDU-A G2 Intelligent Monitoring Unit User Manual
Table 1-17 Environment conditions
Item
Requirement
Application location
Usually in data center or computer room, with air conditioner
Working temperature
-10ºC ~ +60ºC
Relative humidity
5%RH ~ 95%RH, no condensing
Working environment
Dust: compliant with the indoor requirements of GR-63. No corrosive gas, flammable gas, oily
mist, steam, water drops or salt
Air pressure
70kpa ~ 106kpa
Storage temperature
-40ºC ~ +70ºC
Cooling
Natural cooling
Power distribution network
TT/TN
Protection level
IP20
1.4.2 Mechanical Specifications
See Table 1-18 for the mechanical specifications of RDU-A G2.
Table 1-18 Mechanical specifications
External model
Measurement
Valve
Error
IRM-HOST2
Height
43mm
< ±0.5 mm
Width
440mm
< ±1 mm
Depth
311mm
< ±1 mm
Weight
<8kg
IRM-4COM
IRM-8DIAI
IRM-8DOAO
Height
20mm
< ±0.5 mm
Width
158mm
< ±1 mm
Depth
199mm
< ±1 mm
Weight
<1kg
1.4.3 Performance Specifications
See Table 1-19 for the performance specifications of RDU-A G2.
Table 1-19 Performance specifications
Connected component
Cable standard
Connected distance
(unit: m)
Connected number /
connection point
Connecting node of SENSOR1
Standard category 4 twisted-pair cable
≤ 100
16
[1]
Connecting node of SENSOR2
Standard category 4 twisted-pair cable
≤ 100
16
[2]
Connecting nodes of DI ports
Standard category 4 twisted-pair cable
≤ 100
4
[3]
Connecting nodes of DO ports
Standard category 4 twisted-pair cable
≤ 100
2
[4]
Connecting nodes of COM ports
Standard category 4 twisted-pair cable
≤ 100
16
[5]
Note:
[1]: For temperature, temperature and humidity, door status, water, 4DI, 4DO, DO devices and so on, each sensor or device is
calculated as one node; for smoke and infrared sensors, each sensor is calculated as four nodes; only capable of connecting
devices whose address within the group is 1;
[2]: The connecting capacity is the same as [1], however, it can only connect devices whose address within the group is 2;
[3]: DI includes four ports: DI1, DI2, Smoke1, Smoke2, which are provided on the RDU-A G2;
[4]: Visual and audible alarm lamp has two connecting nodes: DO1, DO2. The two connecting nodes can also be for other use as
two routes of digital output;
[5]: The RDU-A G2 can connect up to 16 intelligent devices, not including the default devices, 8DIAI and 8DOAO devices. The
connected devices of single COM cascade cannot exceed four
1.4.4 Product Certificate
RDU-A G2 satisfies CE allege.
