AUXILIARY EQUIPMENT
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7-10
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
7.3.3 Line to Receiver Coupler, 7A388
Figure 7-9 Line to Receiver Coupler, 7A388
7.3.3.1 Equipment Description, 7A388
The Line to Receiver Coupler, 7A388 is non-tuned and provides transmitter-to-line coupling or
line-to-receiver impedance matching. The 7A388 coupler assembly consists of a tubular PVC
plastic enclosure with mounting brackets at the base. There are four AREMA binding posts on
the top of the assembly that provide connections to the circuits housed within the sealed units
(see Application Installation.
7.3.3.2 Mounting Dimensions, 7A388
Mounting Dimensions for the Line to Receiver Coupler, 7A388 are as follows:
Dimensions:
3.5 inches (8.89 centimeters) in diameter
10.75 inches (27.31 centimeters) high (to top of AREMA binding posts)
Weight:
5.25 pounds (2.38 kilograms) (approximate)
7.3.3.3 Application Installation, 7A388
See Figure 2-6 for Line to Receiver Coupler, 7A388 application installation drawings. The
coupler terminals are connected as follows: