Figure 2-18 Cable connection of the relay node
i = 1 - 6
REi +
CTR_OUT+
CTR_OUT-
REi -
The relay node has two pins. The settings of the two pins are as follows:
l If relay node output is enabled, the two pins are connected.
l If relay node output is disabled, the two pins are disconnected.
If the relay needs to output 60 V DC or higher, use a 24 V intermediate relay to convert the
output voltage.
2.6 Technical Specifications of the EMU
This describes the technical specifications of the EMU.
Technical Specifications of the EMU
Table 2-13 lists the technical specifications of the EMU.
Table 2-13 Technical specifications of the EMU
Item
Measured Object Specification
System voltage Measurement range 0 V DC to 100 V DC
Measurement precision ±1 V
Temperature Measurement range
-20
o
C [-4
o
F] to 80
o
C [176
o
F]
Measurement precision
±2
o
C
Humidity Measurement range 0% RH to 100% RH
Measurement precision ±5%
Boolean signal Measurement range Smoke, door status, water damage, and
infrared signal
Alarm response time < 10s
EMU
User Guide 2 Overview of the EMU
Issue 13 (2009-12-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2-19