ADLINK USB-3488A - Manual (Page 35)

Operation Theory 27
3 Operation Theory
This chapter describes the operation theory of GPIB bus and the
basic architecture of ADLINK’s GPIB interface cards.
3.1 Connection Configuration
The GPIB bus has 24 lines which are divided into 16 signal lines
and 8 ground return or shield drain lines. The 16 signal lines can
be divided into 8-bit parallel data transfer bus and 8 control lines.
The 8 control lines contain 5 system management lines and 3
handshake lines.
Figure 3-1: Standard GPIB Connector