DVR systems DVRxx04HF-U Series - Manual (Page 19)

9
Multi-channel
Playback Support single-channel, 4-channel modes.
Window
Zoom Switch between self-adaptive screen/full screen when playback
Partial
Enlargement When in one-window full-screen playback mode, you can select any
zone to activate partial enlargement function.
HDD backup
Support peripheral USB backup device. (Flash disk, portable disk,
USB burner and etc.)
Support external eSATA device backup
Backup
function
Backup Mode
Support network download and backup
View monitor channel remotely.
DVR configuration through client-end and web browser
Upgrade via client or browser to realize remote maintenance.
View alarm information such as external alarm, motion detection and
video loss via client.
Support network PTZ lens control
File download backup and playback
Multiple devices share information via corresponding software such as
professional surveillance software (PSS)
Duplex transparent COM
Network alarm input and output
Network
Function
Network control
Bidirectional audio.
Motion
Detection Zone setup: support 396((PAL 22×18, NTSC 22×15)) detection zones.
Various sensitivity levels.
Alarm can activate record or external alarm or screen message
prompt.
Video Loss Alarm can activate external alarm or screen message prompt.
External Alarm Support record activation function or activate external alarm or screen
message in specified period.
Manual Alarm
Control Enable or disable alarm input channel
Support analog alarm signal to specific alarm output channel.
Alarm Input
4-ch alarm input（You can set normal open or normal close type to
select the alarm type. ）
Alarm Output 6-channel relay output. (one of them can control DC+12v output)
Motion
Detection and
Alarm
Alarm Relay 30VDC 2A，125VAC 1A（activation alarm ）
USB Interface 3 USB 2.0 ports.
Network
connection RJ45 10M/100M/1000M self-adaptable Ethernet port
RS485
PTZ control port
Support various PTZ control protocols.
Interface
RS232
Ordinary COM (Debug),keyboard connection and transparent serial
port(COM input and output via network )