Timing Diagram (Mode 1) - Agilent Technologies 4286A User Manual

Pin Signal
No.
23 N.C.
24 /NO CONTACT
25 /KEY LOCK
26 N.C.
27
28
29 /ALARM
30 /INDEX
31 /EOM
32 COM2
33 COM2
34 COM1
35 COM1
36 COM1
Figure 4-5 shows timing diagram for mode 1.
4-26 4286A with Chip Handler
Table 4-10. Signal De nition (Mode 1) (continued)
Input
/Output
| Not used.
Output Contact check fail signal. Is output if the measured DC resistance is outside
the preset limits for contact check.
Input Key lock signal. All key operations on the 4286A front panel are disabled if
this signal is received.
| Not used.
Output Failure signal. Is output if self-test results are faulty, if power is
instantaneously interrupted, or if a speci c circuit malfunctions. During
power interruption, this signal remain ON only during loss of power.
Output Analog measurement end signal. You can connect the handler to a new DUT
when this signal is received by the handler. Note that measured data will be
available only when /EOM is output.
Output Measurement cycle end signal. Measured data and comparator signals are
valid when this signal is output.
| External DC voltage COMMON for EXT.DCV2
| External DC voltage COMMON. This COMMON supplies DC voltage to DC
isolated output signals (/BIN1 to /BIN9, /OUT OF BIN, /AUX BIN, /PHI,
/PLO, /SREJ, /FAIL, /NO CONTACT).
Figure 4-5. Timing Diagram (Mode 1)
De nition and Description