GAI-Tronics 400-001 RigCom Stations - Manual (Page 7)

Pub. 42004-376C
Model 400-001 and 400-002NS RigCom Stations Page 7 of 22
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System Line Balance
Each system requires termination of the audio pair wires with the 1 k /1-watt resistor assembly included
with each unit. The line balance resistor assembly is made for easy installation into the customer-
supplied junction box. N
OTE : Only one line balance resistor assembly is needed per system.
For cable runs that are approximately 4000 feet (1219 m) or longer, it is recommended that the resistor
assembly be installed in a junction box (customer supplied) that is close to the center of the system. Refer
to Figure 5 and Figure 6. The junction box must be suitable for the applicable hazardous location in
which it is located.
Figure 5. System cable wiring less than 4000 feet in length