1260-155
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Catalog excerpts

EADS North America Test and Services Racal Instruments™ 1260-155A/T/AT 3 GHz 1x4 Coaxial Tree Switch Plug-In The Racal Instruments™ 1260-155/A/T/AT is a high-frequency, coaxial 1x4 binary tree switch plug-in for use in either the Racal Instruments™ 1260-100 Adapt-aSwitch™ VXI carrier, or the Racal Instruments™ 1256 GPIB/RS-232/Ethernet switching mainframe. These switch cards are designed with an MCX interface connector, which is known for its high signal fidelity with connectors and cable assemblies available from many different vendors worldwide. Key Features Product Information • Can be used on both GPIB/ RS-232/Ethernet and VXI platforms The 1260-155 is available in four different 50 Ω versions to meet a wide range of applications. The 1260-155A has two 1x4 binary trees with a 3 GHz bandwidth. • Coaxial interface The 1260-155AT has two 1x4 binary trees with a 3 GHz bandwidth and selfterminated channels. • Available with self-termination and 1.5 GHz or 3 GHz bandwidth • 50 Ω characteristic impedance; 75 Ω impedance available • Ideal for general purpose RF switching • No unterminated stub effects • Excellent isolation and crosstalk characteristics When used with the 1256 Switching Mainframe, no controller is required, and message-based operation is available. The Adapt-a-Switch™ line includes drivers for LabWindows™/CVI and LabView™ for VXI applications. It also includes VXIplug&play support for frameworks based on Microsoft Win32® application programming interface. The 1260-155 has two 1x4 binary trees with a 1.5 GHz bandwidth. It also has two 1x4 binary trees with a 1.5 GHz bandwidth and self-terminated channels. An interconnecting relay maybe added to construct a single 1x8 tree. Reduced VSWR versions of the 1260-155 and 1260-155T are also available. 1260-155A Typical VSWR High signal fidelity is maintained through the use of high quality RF relays, direct connection of inputs immediately adjacent to the relays, lack of unterminated stub effects, and high quality MCX interface connectors used in the design. This high quality design enables the reduction of insertion loss while maintaining excellent isolation and crosstalk. 1260-155A Typical Insertion Loss When used with the 1260-100 VXI carrier, the 1260-155 requires an Option 01T to communicate with the switch cards and to provide both message-based operation for ease of use and register-based operation for maximum speed. ECO# 2010-EADSTS-11-08-4-MU. Uncontrolled Unclassified Information (“UUI”). This documentation does not contain ITAR-controlled data within the definition of the ITAR and has been reviewed and approved for release to non-US persons. EADS North America Proprietary Copyright © 2011

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EADS North America Test and Services Note: The EADS North America Test and Services policy is one of continuous develop- ment and improvement. Consequently, the equipment may vary in detail from the descrip- tion and specifications in this publication. Maximum Switching Voltage Switching Current Switching Power Initial Path Resistance Insulation Resistance (75 Q versions available; contact Relay Settling Time Interface Connectors • Standard MCX, Right Angle Plugs Relative Humidity Bench Handling Relay Life • Electrical: 1 x 105 at full rated load passed rigorous testing in the area of RF...

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