Muxlab Passive CCTV/GLI Hub - Manual (Page 13)

© MuxLab Inc. Passive CCTV/GLI Hub Installation Guide
Page 13
9. Connect two (2) wires between the power terminals
of the hub to the remote low voltage power supply
(fig 9). It is recommended to use a Class II power
supply with fuse protection on each output port.
Figure 9: Remote power connection
PTZ Control:
10. If PTZ Control is to be transmitted to the camera,
verify that the distance between the camera and the
hub is within the distance specifications for sending
PTZ control over twisted pair. Consult the PTZ
equipment vendor for maximum distances. Please
ensure that the port switch is set to Pass-Thru Mode
(500022). When the port switch is set to Pass-Thru
Mode (500022), one (1) twisted pair is used for PTZ
control. For optimum results, it is recommended to
use control protocols such as RS-422, RS-485 or Bi-
phase. Due to crosstalk issues, RS-232 is not
recommended.
11. Connect two (2) wires between the PTZ controller
and the “Control” terminals on the hub (fig 10).