PA-872 Rev. B / 12-03
4500-CILK-* Interlock Cable
User’s Guide
Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
(440) 248-0400
www.keithley.com
Introduction
This document contains information on the 4500-CILK-* interlock cable. This cable is used to connect the 451x-QIVC
card interlock circuits to a test fixture switch to inhibit source outputs when the test fixture lid is open.
Connection precautions
WARNING
The interlock is required for safe operation. The test fixtures must ensure that the
interlock circuit is disabled (source outputs inhibited) so that an operator is not
exposed to any harmful conditions.
Description
Cable configuration
The overall configuration of the 4500-CILK-* interlock cable is shown in Figure 1. The cable includes a 14-pin male con-
nector that mates with the 451x-QIVC card interlock connector on one end, and a 9-pin D-sub female connector on the
other end for connections to a test fixture.
Figure 1
4500-CILK-* cable configuration
9-Pin connector
to test fixture
14-Pin connector to
451x-QIVC card
interlock connector
