4 remote controller – LT Security LTD2508FD User Manual
Page 18
![background image](/manuals/363833/18/background.png)
12
Digital Video Recorder User Manual
Item
Name
Description
14
ALARM IN
Connect to external sensor1-16
15
ALARM OUT
4ch relay output. Connect to external alarm.
16
GND
Grounding
17
P/Z
Connect to speed dome
18
K/B
Connect to keyboard
19
GND
Grounding
20
FAN
For cooling the device
21
POWER INPUT
AC 110V-220V
22
POWER SWITCH
Switch on/off
2.4 Remote Controller
It uses two AAA size batteries and works after loading batteries as following:
Step1: Open the battery cover of the Remote Controller
Step2: Place batteries. Please take care the polarity (+ and -)
Step3: Replace the battery cover
Notice: Frequently defect checking as following
1. Check batteries poles
2. Check the remaining charge in the batteries
3. Check IR controller sensor is mask
If it still doesn't work, Please change a new remote controller to try, or contact your dealers
The interface of remote controller is shown in Fig2.4 Remote Controller.