Tx/If Output (Cp1); Rx/If Input (Cp2); Receive Data (Cp3); Send Data (Cp4) - Comtech EF Data SDM-9000 Installation And Operation Manual

Installation

2.4.1 TX/IF Output (CP1)

The TX/IF output connection is a BNC connector used for the transmit IF signal. The
output impedance is 75
In normal operation, the output is a modulated carrier with center frequency between 50
and 180 MHz.

2.4.2 RX/IF Input (CP2)

The RX/IF input connection is a BNC connector used for the receive IF signal. The input
impedance is 75
should be between -25 and -45 dBm.
The signal frequency of the receive RX/IF input is between 50 and 180 MHz.

2.4.3 Receive Data (CP3)

The Receive Data connection is a BNC connector used for the terrestrial data output
(G.703 interface only). The output impedance is 75

2.4.4 Send Data (CP4)

The Send Data connection is a BNC connector used for the terrestrial data input (G.703
interface only). The input impedance is 75

2.4.5 External Clock (CP5)

The External Clock connection is a BNC connector used for the external buffer clock
input (Ext Clk). The input impedance is 75
only. The external clock input for ECL/MIL-STD-188 interfaces is provided on the J8
connector.
2–6
Ω Ω
(50 optional). The output power level is +5 to -20 dBm.
Ω Ω
(50 optional). For normal operation, the desired carrier signal level
SDM-9000 Satellite Modem
Ω
.
Ω
.
Ω
. This input is used for the G.703 interface
Rev. 4