Rx/rf input (j4), Prime power (j5), 4 rx/rf input (j4) – Comtech EF Data CST-5000 User Manual

Page 51: 5 prime power (j5)

Advertising
background image

CST-5000 C-Band Satellite Terminal

Single Thread System Installation

Rev. 9

2–23

2.5.4 RX/RF Input (J4)

The RX/RF input is a type N connector that receives the signal from the LNA. The input
impedance is 50

.


The input frequency range is from 3.620 to 4.200 GHz.

The input signal level ranges between -50 and -25 dBm, depending on LNA and antenna
gain.

The input level should be set to give the required signal level at J3, the RX/IF Output
(refer to Section 2.5.3).

2.5.5 Prime Power (J5)

The AC power is supplied to the RFT by a 3-pin circular connector.

Normal input voltage is 95 to 230 VAC, 47 to 63 Hz.

The AC pinout is as follows:

Pin #

Name

Function

Wire Color

A HI Line

Brown

B LO Neutral/Line Blue
C GND Ground Green/Yellow


Maximum power consumption depends on the power amplifier used in the RFT. The
following is a list of maximum power consumption at each configuration:

SSPA

Maximum Power

+8 dBm

90W

5W 140W
10W 210W
20W 340W
40W 600W


A circular 4-pin power connector is used for the 48 VDC option. The pinout is as
follows:

Pin #

Function

A +

INPUT

B CHASSIS

GROUND

C -

INPUT

D -

N/C

Advertising