VXi EX7000 User Manual

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VXI Technology, Inc. 
12 
EX7000 Series Introduction 
  
F
IGURE 
1-4:
 
JAVA-
BASED 
G
RAPHICAL 
U
SER 
I
NTERFACE
 
R
ELAY 
D
RIVE 
C
ONTROL
 
The EX7000 contains a proprietary circuit board set consisting of a Relay Driver Board (RDB)and 
LXI LAN Interface Board, which is known as the EX7000-OEM when supplied as a set without 
an enclosure. They have been designed to provide maximum flexibility for controlling virtually 
any type of RF/microwave relay or component. Each RDB provides 72 high-current drivers, 
which are divided into twelve sections of six lines. Each section consists of: 
•  six high-current drive lines 
•  six indicator/status bits 
•  one reset line 
•  four relay ID bits 
•  one relay power input 
•  one 5 V input 
•  one ground 
Each driver board is capable of recognizing and controlling either latching or non-latching switch 
modules. A programmable delay (per driver board) dictates the amount of time allocated to relay 
settling times and current cutoffs (for latching relays). 
Each driver board has a single programmable delay parameter. The programmable delay for any 
board should be set to the maximum value required by any component connected to that board.