A5 Lock Reference Board Signal List - HP 5501A Operating And Service Manual

Model 5501A
Circuit Diagrams
Input
XA5-B,2
XA5-C
XA5-E,5
XA5-F
XA5-6
Output
XA5-D
XA5-3
XA5-4
Table 7-4. A5 Lock Reference Board Signal List
Signal Name
+ I 5V
RETUNE
CLAMP
REF
GND
+5v
REF O K
REF
Function
+I5 volts operating power for Lock
Reference Board
Activates clamping switch that forces
Laser tube to operate on proper
tuning mode
Complimented Reference Measure-
ment Signal, equal to the difference in
frequency between the Laser f, and f,
components
Ground reference
$5 volts operating power for Lock
Reference Board
Active low signal indicating Laser
properly tuned
Reference Measurement signal, equal
to the difference in frequency
between the Laser f, and f,
components
-15 volts operating power for Lock
Reference Board
Source Destination