Introduction

 

The Agilent U2121A- 101 (also known as U2931A) RF switch driver

 

with cable is an adapter board designed for use with the Agilent

 

U2121A digital IO device. It enables you to control various types of

 

RF switches easily and has enhanced driving capability and consists

 

of different types of connectors to suit different switches.

 

The U2121A- 101 purchase consists of a driver interface module, an

 

interface cable (equipped with a 37- pin D- sub connector on one end

 

and four 10- way terminal block connectors on the other end), a

 

10- pin to D- sub adapter, and a 24 VDC, 2.5 A power adapter. This

 

module is connected to the U2121A using the provided interface

 

cable. You can also use the Y1157A[1] cable, which is a 10- pin ribbon

 

connector to 9- pin D- Sub cable kit for the Agilent N1810/11/12

 

coaxial switches.

 

This module is consists of five RF switch driver channels and one

 

general IO terminal. Each channel is pre- programmed to drive three

 

different types of Agilent RF switches. Only one type of RF switch

 

can be connected to a single channel during operation.

 

DO NOT connect different types of RF switches to the same channel during

C A U T I O N

operating time.

 

 

 

 

The U2121A- 101 module is designed to handle 24 VDC switches.

[1] Refer to Appendix B for Y1157A cable kit assembly.

2

U2121A-101 Operating Guide

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Agilent Technologies U2121A-101 manual Introduction, Operating time