Annexes
R&S
®
ZNB/ZNBT
1391
User Manual 1173.9163.02 ─ 53
Figure 11-5: Pin assignment of the Universal Interface connector
The input and output signals at the connector are described below.
Pin No.
Signal
Input (I)
or Out-
put (O)
Description
1
GND
–
Ground
2
/INPUT 1
I
When a negative pulse is fed to this port, the /OUTPUT 1 and /OUTPUT 2 signals (pins
no. 3 and 4) change to "Low".
3
/OUTPUT 1
O
Changes to "Low" when the /INPUT 1 (pin no. 2) receives a negative pulse.
4
/OUTPUT 2
O
Changes to "Low" when the /INPUT 1 (pin no. 2) receives a negative pulse.
5
/PORT A0
I or O
Port A, bit no. 0 (8-bit parallel input or output port)
6
/PORT A1
I or O
Port A, bit no. 1
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
Interfaces and Connectors
