Rohde & Schwarz 1332.4500.22, User Manual

Page: 1419 / 1476

Annexes
R&S
®
ZNA
1419 User Manual 1178.6462.02 ─ 12
Pin No. Name Input (I) or
Output (O)
Function
13 UC_PASS1 O Pass/fail result of limit check 1; TTL Out Pass 1 (see TTL1
Pass / TTL2 Pass )
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 (
OUTPut:UPORt:ECBits OFF
) 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
OUTPut<Ch>:UPORt[:VALue]
.
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.
EMI Suppression
Use only double shielded cables or disconnect the input pins of the User Port connec-
tor to avoid spurious input signals which may cause undesirable events.
This is of particular importance for the external trigger input (pin no. 2) if the Trigger In
input is used.
11.3.1.2 Trigger In
BNC female connector for external trigger input; see "FreeRun / External / Manual /
Multiple Triggers" on page 431. The external trigger input signal must be a 3.3 V or 5 V
TTL signal with a minimum pulse width of 1
µ
s. The trigger input has a high input impe-
dance (> 10 k
Ω
).
11.3.1.3 Trigger Out
BNC female connectors for external trigger output; see "Output trigger" on page 430.
The R&S ZNA trigger output provides a configurable 5 V TTL trigger signal. The output
impedance is approximately 50 Ohm.
Interfaces and Connectors