205B Series User’s Manual
4
118124-001-Rev.A
Figure 41 below defines the pin locations and
functions of the rear panel analog monitor and
remote analog programming connector.
Figure 4.1
PIN
FUNCTION
1
Buffered output voltage monitor, 0 to +5VDC
via 10k
ȍ
2
No connection
3
TTL level compatible logic input. Input logic
zero disables high voltage generation.
Open circuit or input logic one enables high
voltage generation.
4
Pre5VDC reference output,
referenced to analog ground.
5
Buffered output current monitor, 0 to +5VDC
via 10k
ȍ
6
Remote analog programming input, 0 to
+5VDC
7
Analog ground
8
Digital ground
9
NPN open collector with respect to digital
ground, indicating output high voltage
polarity. NPN saturation denotes positive
polarity (logic 0), NPN cut-off denotes
negative polarity (logic 1)
SECTION V: MAINTENANCE
5.1 GENERAL
Your 205B Series high voltage power supply is
designed for reliable, trouble-free operation. If any
questions should arise, contact Spellman’s
Customer Service Department for assistance or
return authorization.
The power supply can be returned to the factory for
annual calibration and certification to its original
specifications. For traceability, a certificate will be
issued, identifying the serial number of the unit
calibrated and all test equipment used to perform
the calibration. All measurements are traceable to
the National Institute of Standards and Technology
(NIST). Contact factory for additional details.
