Hardware Interfaces
R&S
®
SMBV100B
982User Manual 1178.4460.02 ─ 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 Chapter 11, "Network Opera-
tion and Remote Control", on page 550.
All other interfaces are described in Chapter 2.2, "Instrument Tour", on page 40.
For specifications, refer to the data sheet.
B.1 GPIB-Bus Interface
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