Comtech EF Data RSU-503 - Manual (Page 35)

RSU-503 Redundancy Switch Unit Installation
Rev. 8 19
2.4.5 TX/RF Output (J9)
The TX/RF Output connector is a 50
Ω
type N connector that carries the transmit uplink
signal from the online RFT (Unit A or B) to the antenna.
2.4.6 Waveguide Switch (J10)
The Waveguide Switch connector connects the switch to the LNA plate using a 1:1
cable.
2.4.6.1 Waveguide Switch Pinout (J10)
The Waveguide Switch connector uses a 19-pin circular female connector with the
following pinouts:
Name Pin # Function
LNA Position 1 Command C +28V pulse for 500 milliseconds
LNA Command Common G Ground
LNA Position 2 Command D +28V pulse for 500 milliseconds
LNA Indicator, Position 1 H Connects to Common when in position 1
LNA Indicator, Common R Ground
LNA Indicator, Position 2 T Connects to Common when in position 2
RF Position 1 Command E +28V pulse for 500 milliseconds
RF Command Common L Ground
RF Position 2 Command F +28V pulse for 500 milliseconds
RF Indicator, Position 1 J Connects to Common when in position 1
RF Indicator, Common V Ground
RF Indicator, Position 2 K Connects to Common when in position 2
LNA PWR #A A
LNA RTN #A B
LNA PWR #B N
LNA RTN #B P