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AHD to HDMI/VGA/Composite Video Converter
ITEM NO.: GAHD-HDMI
GAHD-HDMI converts AHD signal to HDMI, VGA, Composite Video or AHD loop out which
enabling users to use cost effective HDMI/VGA/BNC monitor to display AHD camera.
It also supports 3 different output displays at same time. It is perfect solution when user
wants to display AHD camera to different monitor without AHD DVR.
The BNC2 function could works with 3 different function selection: CVBS output or
AHD loop out as a distributor function or second AHD input as a switcher function.
Converts AHD signal to HDMI, VGA, Composite Video or AHD loop out.
Input Support: AHD 1.0 720p@25/30 and AHD 2.0 720@50/60hz,
Output Support: HDMI, VGA, Composite Video or AHD loop out.
3 outputs could be display simultaneously.
BNC connector function selection: AHD loop output, Composite video output or
second AHD input
HDMI/VGA output support: 480p,576p,720p,1080i,1080p
Composite video output support NTSC, PAL.
Composite built in underscan adjustment. (allow
the edges of the picture fit well)
Built in OSD to display input/output setting.
HDMI and DVI compliant. (Support DVI monitor by a HDMI to DVI adaptor)
AHD LOOPOUT Mode:
3 outputs: HDMI, VGA, AHD loop output as a distributor.
CVBS Output Mode:
3 outputs: HDMI, VGA, CVBS could be display simultaneously
AHD INPUT Mode:
Allow AHD camera 2 inputs with 2 outputs: HDMI, VGA as a Switcher.
DC JACK LED:
BNC1 signal received
HDMI output HDMI linking
BNC2 Connector LED： (BNC2 )
Received Input signal
CVBS OUT mode
Switch, Button Function :
DIP Switch 1 : LOOPOUT / CVBS OUT function selection
DIP Switch 1 ↑ (LOOPOUT)
BNC2 connector setting as LOOPOUT mode
▲▼ button for resolution switching, press「▲」button to decrease the resolution, press「▼」 button to
increase output resolution
Resolution for switch sequence will be follow as below :
480p -> 576p -> 720p/60 -> 720p/50 -> 1080i/60 -> 1080i/50 -> 1080p/60 ->1080p/50
NTSC output Resolution setting on 480p, 720/60, 1080i/60, 1080p/60
PAL output Resolution setting on 576p, 720p/50,1080i/50, 1080p/50
DIP Switch 1 ↓ (CVBS OUT)
BNC2 connector setting as CVBS OUT mode
▲▼ button for underscan adjustment, press「▲」decrease CVBS OUT underscan, press「▼」 enlarge
CVBS OUT underscan
Underscan adjustment is to avoid Overscan situation on CRT screen (Overscan is the
situation in which not all of a televised image is present on a viewing screen) which cause picture
enlarge and could not see the edge of screen. The reduce screen adjustment range could be
from minimum 0% up to 20% based on each time 2% reduced.
DIP Switch 2 : INPUT / OUTPUT Mode Selection
DIP Switch 2 ↑ (Output Mode)
BNC2 connector setting as output mode, BNC2 connector function follow by DIP Switch 1 selection.
DIP Switch 2 ↓ (Input Mode)
BNC2 connector setting as input mode, BNC2 connector function as AHD Input 2, DIP Switch 1 setting will
▲▼ button as input selection, press「▲」 to display Input 1 (BNC1) picture, press 「▼」 to display Input
2 (BNC2) picture, the current display input will be add「*」 symbol marked.
DIP Switch 3 & 4
System reserved, no need setting
Restore Factory Default
Unplug power and hold to press ▲ button until power on, then release ▲ button.
System will restore factory default (Input 1, HDMI & VGA 480p output, CVBS NTSC Underscan 0%)。
Before switching HDMI/VGA monitor, please make sure your monitor supported resolution. If
the monitor not supports the resolution, then there will be no output.
AHD 1.0 720p@25/30、AHD 2.0 720p@50/60Hz、1080p@25/30Hz
HDMI & VGA (480p、576p、720p/50/60、1080i/50/60、1080p/50/60)、CVBS
BNC (75Ω 1Vpp)
HDMI Type-A、D-SUB 15、BNC
DIP Switch x 1、Tact Switch x 2
Operation: 0 to 55℃, Storage: -20 to 85℃, Humidity: up to 95%
88 * 130 * 30