Hardware Interfaces
R&S
®
SMA100B
535
User Manual 1178.3834.02 ─ 03
B Hardware Interfaces
This section covers hardware-related topics, like pin assignment of the IEC 625/IEEE
488 interface.
The remote control interfaces are described in details in
All other interfaces are described in
Chapter 2.2, "Instrument Tour"
For specifications, refer to the data sheet.
B.1 GPIB-Bus Interface
Option: R&S
SMAB-B86.
Pin assignment
Figure B-1: Pin assignment of GPIB-bus (IEEE 488) interface
Bus lines
●
Data bus with 8 lines D0 to D7:
The transmission is bit-parallel and byte-serial in the ASCII/ISO code. D0 is the
least significant bit, D7 the most significant bit.
●
Control bus with five lines:
IFC
(Interface Clear): active LOW resets the interfaces of the instruments connec-
ted to the default setting.
ATN
(Attention): active LOW signals the transmission of interface messages, inac-
tive HIGH signals the transmission of device messages.
GPIB-Bus Interface
