Hardware interfaces
R&S
®
SMB100B
609User Manual 1178.3711.02 ─ 08
C 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 266.
All other interfaces are described in Chapter 3.2, "Instrument tour", on page 32.
For more information, see data sheet.
C.1 GPIB-Bus interface
Option: R&S SMBB-B86.
Pin assignment
Figure C-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
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