
Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
(440) 248-0400
Fax: (440) 248-6168
www.keithley.com
Model STP-68
Packing List
Introduction
This document contains information necessary to successfully install your hardware.
WARNING The STP-68 is not intended for use in circuits carrying voltages in excess of those for
which the inputs of Models KPCI-3101, KPCI-3102, KPCI-3103, KPCI-3104, and
KPCI-3140 are rated, typically ±10V for analog and -5V for digital. Refer to the User’s
Manual for these products for additional limits on operating voltage.
Installation
As described in the International Electrotechnical Commission (IEC) Standard IEC 664, the signal terminals are Installation
Category I and must not be connected to mains.
Analog input screw terminals
STP-68 provides a one-to-one correspondence between pins on J1 and numbered screw terminals. This panel may be used in
non-CE applications with either KPCI-3101/2/3/4 or KPCI-3140. Refer to the manual of the product used for connections and
voltage limits.
PA-686 Rev. B / 7-01

Dimensions
Figure 1
Mounting dimensions (not to scale)
3.93 in.
99.8 mm
3.600 in.
91.4 mm
0.165 in.
4.2 mm
0.1250 in.
3.2 mm
0.1250 in.
3.2 mm
3.600 in.
91.4 mm
3.93 in.
99.8 mm
0.1250 in.
3.2 mm
0.1250 in.
3.2 mm
0.165 in.
4.2 mm
2