Gpib Interface Introduction; Gpib Connection - ADInstruments AD2817C Operation Manual

AD2817C Operation Manual
{ union REGS r;
r.x.dx = port;
r.h.ah = 0;
r.h.al = code;
int86( 0x14,&r,&r );
}

5.3 GPIB Interface Introduction

5.2.1 GPIB connection

When configuring a GPIB system, the following restrictions must be adhered to.
The total length of cable in one bus system must be less than or equal to two meters
z
times the number of devices connected on the bus (the GPIB controller counts as one
device) and the total length of cable must not exceed 20 meters.
A maximum of 15 devices can be connected on one bus system.
z
There are no restrictions on how the cables are connected together. However, it is
z
recommended that no more than four piggyback connectors be stacked together on
any one device. The resulting structure could exert enough force on the connector
mounting to damage it.
/* serial port */
/* int14 function0:initial serial port */
/* initialization code */
Figure 5-1 GPIB connection
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