Dahua Technology LE-L - Manual (Page 11)

11
z Network operation
Support network remote real-time monitor, remote record search and remote PTZ control.
z
Alarm activation function
Several relay alarm outputs to realize alarm activation and on-site light control.
The alarm input port and output has the protection circuit to guarantee device safety.
z
Communication port
RS485 port can realize alarm input and PTZ control.
RS232 port can connect to keyboard to realize central control, and can also connect to PC COM
to upgrade system and realize maintenance, and matrix control.
Standard Ethernet port can realize network access function.
z
PTZ control
Support PTZ decoder via RS485.
Support various decode protocols to allow the PTZ to control the speed dome.
z
Intelligent operation
Mouse operation function
In the menu, support copy and paste setup function
Slight function differences may be found due to different series.
1.3 Specification
1.3.1 4 HDD Series
Parameter 4-ch 8-ch 16-ch
Main
Processor
High-performance industrial embedded micro controller
OS
Embedded LINUX
System
Resources Multiplex operations: Multiple-channel record, multiple-channel playback
and network operation simultaneously
Interface User-friendly graphical user interface
Input
Devices Front panel, USB mouse, remote control
Input
Method Arabic number, English character, donation and extension Chinese
(optional)
System
Shortcut
Function Copy/paste operation, USB mouse right-key shortcut menu, double click
USB mouse to switch screen.
Video
Compressio
n
H.264
Compression
Standard
Audio
Compressio
n
G.711A
Video Input
4-CH composite video
input: (NTSC/PAL)
BNC (1.0V
B
P- P,
B
75Ω)
8-CH composite video
input: (NTSC/PAL)
BNC (1.0V
B
P- P,
B
75Ω)
16-CH composite
video input:
(NTSC/PAL) BNC
(1.0V
B
P- P,
B
75Ω)