Telecast Adder 162 User Manual page 16

Switches on the Main PC Board control connectors between Adders over either fiber or coax.
Locate SW1 in the lower left corner of the Main PC Board (Figure 8a on page 10).
To receive from optical fiber, configure SW1 according to Figure 11.
To receive from coax, configure SW1 according to Figure 12.
Configure SW2 according to the length of coaxial cable being used. Refer to Figure 13.
The maximum length of coaxial cable that can be used on any single run between assemblies is
1000 feet.
On newer versions, these switches do not exist and the units function in "Coax priority". This
means that the systems first looks for a coaxial link. If one is not found, the system automatically
begins looking for an optical link. In addition, SW2 is also gone and coax lengths are handled by
an automatic coaxial length equalization circuit.
Figure 11: Optical Fiber Receive Switch Setting
Figure 12: Coax Receive Switch Setting
Figure 13: Coax distance Settings
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