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Power and control connections
Line power, switch control signals and computer control signals must be connected prior to system operation. RF switch control
signals are connected from the 7020-MWS\QCC switch card, installed in the 7001/2 mainframe, to the System 40 chassis
mounted RF switch terminals using a ribbon cable terminated with a 96-pin DIN connector. One piece System 40’s may be
shipped from the factory with this cable connected, two piece systems must be connected after rack installation. The ribbon
cable 96-pin DIN connector label identifies the mating 7020-MWS connector. Secure the connectors by tightening the two cap-
tive mounting screws located on the ribbon cable connector.
WARNING
Before beginning any wiring procedures, make sure all power is off.
CAUTION
96-pin DIN connectors must be securely fastened to the 7020-MWS card or damage to
the card may occur.
5. Connect Model 7001 or 7002 line power and IEEE-488 interface cable as described in the Switch System Manual.
6. Connect the RF switch power supply line cord to the same AC power source circuit as the switch mainframe.
Coaxial cable installation
System 40 is configured with RF and microwave connectors suitable for the specified operating frequency range. Mating connec-
tors must be clean, must meet connector type interface specifications, and must be tightened to the appropriate torque specification.
WARNING
Contact with exposed conductors carrying RF power may cause burns. Place protec-
tive caps on all unused switch inputs. All cables and connectors should be properly
mated and shielded.
CAUTION
Mating connectors with out of tolerance pin depths may destroy the connector. Verify
pin depth before mating connectors.
Coaxial connector cleaning
Connector interfaces must be free of foreign material to prevent performance degradation. Visually inspect the connector using
a 4X to 10X magnifying lens. Try to blow foreign material off the connector using canned air. (Canned air is recommended
due to the presence of moisture and oils in air supplied by standard industrial compressors.) Use a lint free miniature cleaning
swab moistened with clean isopropyl alcohol to wipe off any remaining foreign material.
Coaxial connector mating
1. Remove all power to the system before installing cables.
2. Connect cables to System 40 connectors and tighten using a
⁵⁄₁₆
inch torque wrench, to 7-10 in.-lb for SMA type connectors.
Type-N connectors may be connected finger tight. Refer to as-built documentation for other connector types.
CAUTION
Application of excessive torque may damage connector.