![background image](http://html1.mh-extra.com/html/keithley/7999-4/7999-4_instruction-manual_4071817019.webp)
Simplified schematic
Figure 2-2 shows a simplified schematic diagram of the Model 7999-4. The schematic is
arranged into four sections:
•
Power
•
RS-232 interface
•
Relay control
•
Relay
RS-232
Interface
Power
Relay
control
J1011
DB9
J1
0
0
3
J1010
3-Pin phoenix
jack
Power
LED
NO LED
NC LED
Relay
C
NO
NC
NC
COM
NO
SMA Connectors
Figure 2-2
Simplified
schematic
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...