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Introduction
This section contains operating information for the Model 7999-4. The information is orga-
nized as follows:
•
Maximum signal considerations
•
Toggle relay state switch
•
Operation (RS-232)
•
Switching considerations
Maximum signal considerations
WARNING
Maximum voltage between any conductor and ground is 42V.
CAUTION
To prevent damage to the Model 7999-4, do not exceed the following maxi-
mum signal level specifications of the switch:
•
Maximum voltage: 30V DC, 42V peak
•
Maximum current: 1A DC, switched
Toggle relay state switch
Use this switch to manually toggle the relay, i.e., if the relay is closed, operating the switch
opens the relay, if the relay is open, operating the switch closes the relay. After operating this
spring loaded switch (pushing the switch left or right), the switch returns to the center (neutral)
position while the relay stays in the toggled position. Refer to Figure 3-1.
NC
NO
TOGGLE RELAY STATE
Figure 3-1
Toggle relay
state switch
Summary of Contents for 7999-4
Page 1: ...Contains Operating and Servicing Information Model 7999 4 Microwave Switch Instruction Manual...
Page 12: ...1 GeneralInformation...
Page 16: ...2 Connections...
Page 22: ...3 Operation...
Page 25: ...3 4 Operation 1 1 Figure 3 2 Jumper location...
Page 29: ...4 ServiceInformation...
Page 34: ...5 ReplaceableParts...
Page 38: ......
Page 41: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...