Norsat International Inc. NSLK3200 ユーザーズマニュアル

Page 34

           099-20003-01OM 

Norsat

The Baseband/IF unit and Antenna/RF unit are connected via a 10 meter
multi-cable assembly called the interfacility link (IFL); a 30 meter cable is pro-
vided as an option.

The calibration files may need to be changed in order to accommodate the 10
meter and 30 meter cables.

The IFL is comprised of five individually shielded cables encased in a braided
sheath:

Transmit IF

Receive IF

Transmit Monitor IF

SSPA Power

Monitor and Control

The three IF cables are 50 ohm co-axial cables with N-male connectors on
each end. In addition to the L-band IF signals, these cables also carry a 24 V
DC and a 10 MHz reference. Each of the co-axial cables is colour coded:

Transmit IF: Red

Receive IF: Green

Transmit Monitor: Blue

All co-axial cables in the IFL carry 24 V DC.

The SSPA power cable supplies 24 V to the SSPA. The current in the cable
can be in excess of six amperes.

The Monitor and Control cable contains the following control signals:

SSPA Mute

Temperature Sensor Reading

SSPA Power Detector Reading

SSPA Fan Alarm

Receive Signal Strength

The SSPA Power and the Monitor and Control cables are terminated in a
common multi-pin connector. The Baseband/IF unit side uses a male connec-
tor and the Antenna/RF unit side uses a female connector. The cable ends
are labeled A

NTENNA

 and B

ASEBAND

 accordingly. Each end of the cable has a

strain relief.

The following steps describe the procedure for interconnecting the Baseband/
IF unit and Antenna/RF unit.

1.

Assemble the Antenna/RF unit.

2.

Locate the IFL cable; refer to Figure 29 on page 35.