User's Manual
QSTD2400 Series DVR User’s Manual 
7 
         The Rear Panel Layout for 4 Channel DVR is shown as Fig 2.4 Rear 4Ch. 
Fig 2.6 Rear Panel for 4-channel DVR 
Name  Description 
1  Video in  Video input channels from 1-16 
     2  Video out  Connect to monitor 
     3  S-video  S-Video output, connect to monitor 
     4  Audio out  Audio output, connect to the Speaker 
     5  Audio in  Audio input   
     6  PS/2 Port  Connection for PS/2 mouse 
     8  USB MOUSE  Connection for USB mouse 
     9  RJ45 Port  Connect to router for network/internet access 
    10  VGA Port  VGA output, connect to monitor 
    11  COM Port  For debugging or serial input 
    12  ALARM IN/OUT 
External  sensor  input  1-4  Relay  output  1-4.  Connect  to 
external  alarm. Please  refer  to  2.3.2  Installing  Sensor 
Alarm 
    13  Power    Power on/off 
    14  Loop out    For outputting each channel’s image independently 
    15  e-SATA Port  Connect to eSATA HDD for backup 
Tab 2.4 4 Channel Rear Panel Layout 
  Notice:  The  resolution  of  VGA  output  is  800*600/60Hz.  If  connected  through  VGA  port, 
please assure your display supports the display mode. (For most of LCD screens, they can 
adapt to it automatically without manual adjustment)   










