Specifications

HBZTX6-IN-4 Page 12
6 Installation
6.1 Assembly
Assembling the main unit from a combination of ZTX6/MODs and a ZTX6/8M2 is described
in the ZTX6/MOD instructions included separately with every ZTX6/MOD.
6.2 Video Connections - Standard
All video must be 1 V pk-pk composite via 75 ohm coaxial cable with BNC connectors.
• Connect coaxial cable terminated with BNC connectors from your ZTX6 camera
inputs
to your cameras or receivers (refer to receiver manual).
• Connect coaxial cable terminated with BNC connectors from your ZTX6 monitor
outputs
to your monitors and VCRs
6.3 Video Connections – Loop-through
Loop-through allows you to use a camera input for another application such as a dedicated
monitor or VCR.
To allow you to use the video-signals for other applications the camera inputs have
switchable 75 ohm terminations (Hi-Z represents high-impedance). These are mounted on
the 8-way dip switch between the 2 monitor outputs and the 8 camera inputs. The numbers
on the dip-switch correspond to the camera input numbering.
You can use the video line with more than one application although the line must have 75
ohm termination at the end (and nowhere else). So if you are connecting the video to your
ZTX6 and then on to, for instance, a monitor or a VCR then switch the relevant switch on the
ZTX6 to Hi-Z and ensure the other unit 75-ohm-terminates the line.
If the ZTX6 is at the end of the line and the other unit is connected in first then ensure that
the termination is switched off on the other unit (refer to the unit instructions) and leave the
ZTX6 input 75 ohm terminated.
Note:
A BNC T-piece is not practical here because of the limited space between the BNCs,
a BNC F-piece is preferable.