Agilent Technologies 4349B Manual page 81

4349B
Table 3-3. Contact Assignment for Comparator Function
Pin No. Signal Name
1 EXT DCV1
2 EXT DCV1
3 /HI1
4 /IN1
5 /LO1
6 /HI2
7 /IN2
8 /LO2
9 /HI3
10 /IN3
11 /LO3
12 /HI4
13 /IN4
14 /LO4
18 /KEY LOCK
19 /EXT TRIG
20 EXT DCV2
21 EXT DCV2
24 +5 V
25 +5 V
26 COM1
27 COM1
28 NO CONTACT1 This signal is asserted when the contact check failed at Ch1.
31 NO CONTACT2 This signal is asserted when the contact check failed at Ch2.
34 NO CONTACT3 This signal is asserted when the contact check failed at Ch3.
37 NO CONTACT4 This signal is asserted when the contact check failed at Ch4.
The / (slash) means that the signal is asserted when low.
1
If an error occurs and the 4349B stops operation, these lines retain the condition that existed just before the error
2
occurs.
If an error occurs and the 4349B stops operation, the 4349B will not trigger a measurement if it receives the /EXT
3
TRIG signal.
1
External DC Voltage 1:
DC Voltage supply pins for DC isolated open collector outputs
(/HI1-4, /IN1-4, /LO1-4, /NO-CONTACT1-4). Maximum voltage input
is +24V, minimum +5V.
This signal is asserted when the comparison result of Ch1 is High.
This signal is asserted when the comparison result of Ch1 is In.
This signal is asserted when the comparison result of Ch1 is Low.
This signal is asserted when the comparison result of Ch2 is High.
This signal is asserted when the comparison result of Ch2 is In.
This signal is asserted when the comparison result of Ch2 is Low.
This signal is asserted when the comparison result of Ch3 is High.
This signal is asserted when the comparison result of Ch3 is In.
This signal is asserted when the comparison result of Ch3 is Low.
This signal is asserted, when the comparison result of Ch4 is High.
This signal is asserted, when the comparison result of Ch4 is In.
This signal is asserted, when the comparison result of Ch4 is Low.
KEY LOCK:
When this line is asserted, all of the 4349B's front panel key
functions are disabled.
EXT TRIG:
The 4349B 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 input is +15V, minimum +5V.
Internal voltage supply (max. output 0.1A):
Exceeding 0.1A will cause the internal voltage output and the
output signals to go to zero.
Common for EXT DCV1.
Description
3
Function Reference
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3-15