2. Quick start guide
Connect the DB09 to the supplied AC/DC adaptor. Fit the appropriate blades to the adaptor for your
country. Blades are supplied for North America, Europe, UK, China and Australia. The adaptor accepts
AC between 90 and 264VAC –the full specification is provided in Appendix A.
The connections to the DB09 are shown in Figure 1.
Connect the 12VDC jack from the adaptor to the +12VDC ‘Power in’ socket on the DB09. The ‘Power
On’LED should light up blue.
Connect your video input to either the UTP (RJ-45) connector or the coaxial video input (BNC).
Switching between the two inputs is by the Coax (switch UP) / UTP (switch DOWN) switch. You can
connect both UTP and coaxial inputs at the same time if required.
Figure 1 DB09 Connections.
The DB09 provides two independent video outputs. The single ended outputs should be terminated in
75Ω. The outputs are filtered and buffered. The SD/HD switch selects the output filter bandwidth,
reducing any out of band noise. The SD selection (switch UP) passes NTSC/PAL or 960H video, the HD
selection (switch DOWN) is for analogue HD such as AHD.
Two adjustments are available to compensate for cable loss. The DC Gain control allows an adjustable
gain that affects all frequencies equally and is designed to compensate for the DC cable loss. The HF
Boost control boosts the high frequencies of the video input using a filter that is the inverse of the
cable high frequency loss. The response of this filter is set using the Coax (for coaxial cable) / UTP (for
UTP cable) switch. The filter can accurately compensate for up to 300m of UTP cable and 200m of
coaxial cable. Longer distances can be compensated for but with less accuracy.
