Annexes
R&S
®
ZNC
747
User Manual 1173.9557.02 ─ 13
Pin No.
Signal
Input (I)
or Output
(O)
Description
7
/PORT A2
I or O
Port A, bit no. 2
8
/PORT A3
I or O
Port A, bit no. 3
9
/PORT A4
I or O
Port A, bit no. 4
10
/PORT A5
I or O
Port A, bit no. 5
11
/PORT A6
I or O
Port A, bit no. 6
12
/PORT A7
I or O
Port A, bit no. 7
13
/PORT B0
I or O
Port B, bit no. 0 (8-bit parallel input or output port)
14
/PORT B1
I or O
Port B, bit no. 1
15
/PORT B2
I or O
Port B, bit no. 2
16
/PORT B3
I or O
Port B, bit no. 3
17
/PORT B4
I or O
Port B, bit no. 4
18
/EXTERNAL
TRIGGER
I
External trigger signal
19
/PORT B5
I or O
Port B, bit no. 5
20
/PORT B6 or
/INDEX
I or O
O
Port B, bit no. 6
The /INDEX signal changes to "Low" when a measurement is complete (all sweeps in all
channels have been performed; the DUT can be removed, but the measurement results
may not be valid yet).
21
/PORT B7 or
/READY FOR
TRIGGER
I or O
O
Port B, bit no. 7
The /READY FOR TRIGGER signal changes to "Low" when the analyzer is ready to
receive a trigger for a new measurement.
22
/PORT C0
I or O
Port C, bit no. 0 (4-bit parallel input or output port)
23
/PORT C1
I or O
Port C, bit no. 1
24
/PORT C2
I or O
Port C, bit no. 2
25
/PORT C3
I or O
Port C, bit no. 3
26
/PORT D0
I or O
Port D, bit no. 0 (4-bit parallel input or output port)
27
/PORT D1
I or O
Port D, bit no. 1
28
/PORT D2
I or O
Port D, bit no. 2
29
/PORT D3
I or O
Port D, bit no. 3
30
/PORT C STA-
TUS
O
Indicates the status of port C:
●
Low: port C is an input port
●
High: port C is an output port
31
/PORT D STA-
TUS
O
Indicates the status of port D:
●
Low: port D is an input port
●
High: port D is an output port
32
/WRITE
STROBE
O
Changes to "Low" when valid data is present at any of the output ports (i.e. when the
output level at any port changes).
Interfaces and Connectors