Annexes
R&S
®
ZNB/ZNBT
1539
User Manual 1173.9163.02 ─ 62
Table 12-1: VNA User Port: Pole Assignment
Pin No.
Name
Input (I) or
Output (O)
Function
1
AGND
-
Ground
2
UC_EXT_TRG_IN
I
External trigger 1 input, 5 V tolerant *)
3
AGND
-
Ground
4
UC_BUSY
O
Hardware measurement time
5
AGND
-
Ground
6
READY FOR TRIGGER
O
Measurement completed, ready for new trigger
7
AGND
-
Ground
8
UC_CH_BIT0
O
Channel bit 0;
see
9
UC_CH_BIT1
O
Channel bit 1
10
UC_CH_BIT2
O
Channel bit 2
11
UC_CH_BIT3
O
Channel bit 3
12
AGND
-
Ground
13
UC_PASS1
O
Pass/fail result of limit check 1; TTL Out Pass 1 (see
14
UC_PASS2
O
Pass/fail result of limit check 2; TTL Out Pass 2
15
AGND
-
Ground
16
UC_DRV_PORT1
O
Used as drive ports (
) or
channel bits (
OUTPut:UPORt:ECBits ON
; default)
If used as drive ports, DRIVE PORT
i
is active while test
port
i
is the source port.
If used as channel bits, the pin states can be defined using
17
UC_DRV_PORT2
O
18
UC_DRV_PORT3
O
19
UC_DRV_PORT4
O
20
AGND
-
Ground
21
UC_EXT_GEN_TRG
O
Control signal for external generator
22
UC_EXT_GEN_BLANK
I
Handshake signal from external generator
23
AGND
-
Ground
24
UC_FOSW
I
Control input A, 5 V tolerant
25
UC_TRG2
I
External trigger 2 input, 5 V tolerant
*) Feeding in the external trigger signal via the BNC connector Trigger In is equivalent.
The minimum pulse width of the trigger signals is 1
µ
s.
Interfaces and connectors