Agilent Technologies 8753ET User Manual page 126

Making Measurements
Using Test Sequencing
Table 1-6 Test Set Interconnect Pin Designation
Pin Number Pin Description
Pin 1 No Connection (NC)
Sweep delay: holds off sweeps until test set has finished sweeping (85046A/B and 85047B only)
Pin 2
Same as Test Sequence (TTL OUT) output BNC connector
Pin 3
NC
Pin 4
NC
Pin 5
Pin 6 NC
Ground
Pin 7
Hi-forward/Low-reverse. Follows the test port indicator.
Pin 8
NC
Pin 9
Pin 10 Lstarttrig: Not used. Do not connect anything to this pin.
Pin 11 TESTSET I/O Bit 2 (most significant bit). +5 V when TESTSET I/O has values of 4, 5, 6, or 7. Otherwise, bit is
TTL low.
Ground
Pin 12
NC
Pin 13
+22 Volts
Pin 14
NC
Pin 15
Pin 16 NC
Same as Limit Test output BNC connector
Pin 17
Ground
Pin 18
NC
Pin 19
Pin 20 NC
Pin 21 Ground
TESTSET I/O Bit 0 (least significant bit). +5 V when TESTSET I/O has values of 1, 3, 5, or 7. Otherwise, bit is
Pin 22
TTL low.
TESTSET I/O Bit 1 (middle bit). +5 V when TESTSET I/O has values of 2, 3, 6, or 7. Otherwise, bit is TTL low.
Pin 23
Lremtrig: TTL low when TEST- SET I/O pins are valid. This bit can be used to latch these values.
Pin 24
NC
Pin 25
1-112