Huawei EMU - Smoke Sensor Exterior; Smoke Sensor Working Principle; Smoke Sensor Specifications

Figure 3-2 Exterior of the JTY-GD-01K smoke sensor
NOTE
The cable distributed for the JTY-GD-01K smoke sensor is 10 m [32.81 ft] long.
Working Principle of the Smoke Sensor
When the smoke sensor is in the alarm state, the red indictor is on. After the system is powered
on immediately after being powered off or after the system is reset, the indicator shifts to the
ON state, indicating that the smoke sensor returns to the normal state. Table 3-2 describes the
indicator on the smoke sensor.
Table 3-2 Indicator on the smoke sensor
Indicator
Meaning Status
Red indicator Alarm On
No alarm Blinking
Technical Specifications of the Smoke Sensor
Table 3-3 lists the technical specifications of the JTY-GD-01K smoke sensor.
Table 3-3 Technical specifications of the JTY-GD-01K smoke sensor
Item
Specification
Power supply voltage 24 V DC ± 5%
Working current < 50 uA
Power-on time
≤ 30s
Power-on current < 150 uA
EMU
User Guide 3 Introduction to the Sensors
Issue 13 (2009-12-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3-3