Agilent Technologies 4338B Operation Manual page 89

4338B
Table 3-2. Contact Assignment for Comparator Function
Pin No. Signal Name
1 EXT DCV1
2 EXT DCV1
18 /KEY LOCK
19 /EXT TRIG
20 EXT DCV2
21 EXT DCV2
24 +5 V
25 +5 V
26 COM1
27 COM1
28 /PHI
29 /PIN
30 /PLO
31 /SHI
32 /SIN
33 /SLO
38 /OVVOL, or
/N.C.
42 /ALARM
43 /INDEX
44 /EOM
45 COM2
46 COM2
49 GND
50 GND
The / (slash) means that the signal is asserted when low.
1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
1
External DC Voltage 1:
DC Voltage supply pins for DC isolated open collector outputs (/PHI, /SHI, /PIN,
/SIN, /PLO, /SLO). The maximum voltage is +24V, the minimum +5V.
Key Lock:
When this line is asserted, all of the 4338B's front panel key functions are
disabled.
External Trigger:
4338B is triggered on the rising edge of a pulse applied to this pin when the
trigger mode is set to External.
External DC voltage 2:
DC voltage supply pins for DC Isolated inputs (/EXT TRIG, /KEY LOCK) and DC
Isolated outputs (/ALARM, /INDEX, /EOM). Maximum voltage is +15V, minimum
+5V.
Internal voltage supply (max. output 0.1 A):
Exceeding 0.1 A will cause the internal voltage to go to 0 V.
Common for EXT DCV1.
Primary Parameter High:
The comparison result of primary parameter is HIGH.
Primary Parameter In:
The comparison result of primary parameter is IN.
Primary Parameter Low:
The comparison result of primary parameter is LOW.
Secondary parameter High:
The comparison result of secondary parameter is HIGH.
Secondary parameter In:
The comparison result of secondary parameter is IN.
Secondary parameter Low:
The comparison result of secondary parameter is LOW.
Over Voltage:
The test voltage across the DUT is exceeding 20 mV and source voltage output
goes to 0 V.
No Contact:
Contact check failed.
Alarm:
This signal is asserted on POWER DOWN of the 4338B. The signal length is 200 ms.
Index:
This signal is asserted when an analog measurement is complete and the 4338B is
ready for the next DUT to be connected to the UNKNOWN terminals. The
measurement date, however, is not valid until /EOM is asserted.
End of Measurement:
This signal is asserted when the measurement data and comparison results are
valid.
Common for EXT DCV2.
Ground tied to chassis.
Description
Function Reference
Rear Panel
3-17