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NOTE
You can set bit 2 of the DIP switch SW_BKE to choose whether to use the monitoring port for the smoke
sensor. For details, see
2.3 Internal Structure of the EMU
2.5.3 Monitoring Port for the Infrared Sensor
This describes the monitoring port for the infrared sensor. This port is a voltage-type Boolean
signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
For the position of the monitoring port for the infrared sensor, see
.
shows this port.
Figure 2-10
Monitoring port for the infrared sensor
NOTE
The EMU supports 24V/12 V DC infrared sensors.
lists the meanings of the terminals of the monitoring port for the infrared sensor.
Table 2-6
Meanings of the terminals of the monitoring port for the infrared sensor
Silkscreen
Meaning
24VI
24 V DC power output
12VI
12 V DC power output
OPTI
Input of infrared monitoring signals
GND
Signal grounding terminal
NOTE
You can set bit 3 of the DIP switch SW_BKE to choose whether to use the monitoring port for the infrared
sensor. For details, see
2.3 Internal Structure of the EMU
2 Overview of the EMU
EMU
User Guide
2-12
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 13 (2009-12-30)