User`s manual

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Set order as yellow, black, white and red.
 TV Monitor Output BNC-jack
Mark 7: TV output BNC-jack to connect to TV monitor.
 Audio Input RCA-jack
In RT4 System, Mark 8: Audio Input 1-4; Mark 11: Audio Input 5-8. Set
order as red, white black and yellow.
In HRT4 System, Mark 8: Audio Input 1-4; Mark 11: Audio Inputs
corresponded to camera 9-12. Set order as red, white black and yellow.
In SRT4 System, Mark 8 for 4 sets Video Inputs (order according to
numbers displayed). Set order as yellow, black, white and red.
 Audio Output Earphone-jack
Mark 9: Audio out jack for live audio monitoring, or audio output when
playback saved files with audio.
 Input Terminals (Optional)
Mark 12: Input terminal 1-4, for users to connect to sensor devices. Input
signal from top to bottom is input1, input2, input3, and input4 and
ground connection.
 Output Terminals (Optional)
Mark 13: Relay Output 1-4, for users to connect for controlling of
external device. Signal from top to bottom (2 connections for 1 relay
output) are output1, output2, output3 and output4.
2.3 Hard Disk Installation:
Please take extra notice that the system does not include a hard disk. So
before you start operating this system, it is suggested you install a hard disk
for recording files. VGuard N system has an IDE interface. It can connect 2
IDE hard disk，The setting for the first hard disk is Master and the second as
Slave.
Note1: This system is using Linux EXT3 hard disk format. It is
suggested to use the un-partitioned and un-formatted hard disk,
or use the already formatted to Linux EXT3 format hard disk.
Note2: There is no restriction size for a single hard disk capacity.
However, the maximum partition size will be 250GB.
Note3: After a brand new hard disk is installed, this system will
automatically partition and format this hard disk. When a hard