INTEGRUS | Digital Infra-red Language Distribution System
en |
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BOSCH Security Systems | February 2003
3.4 Connecting radiators to the transmitter
The transmitter has four BNC HF Output connectors labelled 1, 2, 3 and 4 on the rear panel. All four outputs are functionally
identical. They can each drive up to 30 radiators (LBB 4511 and/or 4512) in a loop-through configuration. The radiators are
connected with RG59 cables. The maximum cable length per output is 750 m (2460 ft) to the last radiator. Automatic cable
termination is achieved by a built-in switch in the BNC connectors on the radiator.
:
N
For the automatic cable termination to work, never leave an open-ended cable connected to the last radiator in a loop-through chain.
N
When connecting infra-red radiators, do not split the cable, else the system will not function correctly.
Figure 3.10 Loop-through connection of LBB 4511 and/or LBB 4512 IR Radiators
3.5 Using the output power selection switch
The radiators can be switched to half power. This can be used when full power is not required, e.g. when a mobile system is
used in a small conference venue. Also switch a radiator to half power when an adequate air flow can not be guaranteed, e.g.
when the radiator is mounted on top of an interpreters booth. Reducing the power when possible saves energy and increases
the lifetime.