![Super Circuits DMR27U User Manual Download Page 8](http://html.mh-extra.com/html/super-circuits/dmr27u/dmr27u_user-manual_1401716008.webp)
4
www.supercircuits.com
SECTION 2: HARDWARE OVERVIEW
Table 2. Front panel LEDs and connectors
Name
Description
HDD
Solid light when DVR is accessing the hard disk .
POWER
Solid light when DVR is powered on .
USB
USB port for backup and software updates .
2.2 Backpanel
Audio Channel Inputs
Video Channel Inputs
Power
Ethernet
Audio Out Port
VGA Out Ports
VGA/CVBS Switch
DVR rear panel
Table 3. Rear panel connectors and switches
Label
Operation
VIDEO IN
4 channel connectors for video input . Connect camera output to Video-in .
VIDEO OUT
1 connector for video output .
VGA
Connector for VGA monitor
AUDIO
Audio 1~4:AUDIO IN/ADUIO OUT
SENSOR IN
Connection for sensor device
ALARM OUT
1 alarm device output . Provides simple On/Off switching by using relay . 0 .5A/125V, 1A/30V
RS-485
Connect to PTZ camera, +
PTZ D+ . –
PTZ D–
LAN
RJ-45 connector for LAN connection
DC 12V
Apply 12V DC using the DC adapter supplied with the recorder
VGA / CVBS switch
Select either VGA monitor or CVBS (Composite Video Blanking Sync) monitor . DO NOT CHANGE THIS SETTING WHEN DVR IS
ON . DVR MUST REBOOT IF THIS SWITCH IS CHANGED .
T-ON/ T-OFF switch
For manufacture use only