Instruction Manual

8
DH250: REAR PANEL
1. CAMERA IN: Camera input ports for BNC cameras.
2. CAM
ERA OUT: Connect up to 16 additional Loop Out monitors.
3. AC
IN: Connect a power cable to the AC IN port. Connect the other end of the cable to a power
outlet.
4. 75
OHMS: Controls the DVR’s impedance when using loop-out monitors. This prevents the
colors connected to loop-out monitors from being "washed out".
5. AUDI
O IN: Connect an audio-in octopus cable (9-pin to RCA) to connect up to 16
audio-enabled cameras or powered mic (not included).
6. AUDI
O OUT: Connect one 3.5" RCA port (mono) for audio output.
7. VIDEO OUT: Video
output (BNC) to connect the system to a secondary monitor or DVR.
8. SPO
T OUT: Video output to connect the system to up to 3 external monitors (not included).
Spot Out mode displays channels switching in an automatic sequence.
9. VGA
OUT: VGA port to connect the system to a VGA monitor.
10. HDMI: HDMI po
rt to connect the system to a HDMI TV/monitor.
NOTE: The HDMI port outputs to a maximum resolution of 1920 x 1080i. However, the recording
resolution is a maximum of 720x480 (D1 resolution). This means that when viewing pre-recorded
video, the image will not display in true HD form.
11. eSA
TA: Connect up to two eSata external hard drives for data backup.
12. USB: Connect an e
xternal USB device (i.e. USB mouse or external USB hard drive).
13. LAN1 &
LAN2: Connect an ethernet cable to connect the system to a router or switch (not
included). Connect an ethernet cable to either LAN1 or LAN2.
14. RS23
2C: Not in use.
15. ALARM IN / RELA
Y : Connect alarm sensors/ PTZ cameras to the ALARM IN / RELAY block.
16. Exhaus
t Fan: Keep the exhaust vent clear at all times.
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