Using the GP-IB Interface
9-3
IM 755601-01E
9
9.2 Connecting the Interface Cable
GP-IB Cable
The GP-IB connector used on this instrument is a 24-pin connector that conforms to the
IEEE St’d 488.1-1987. Use a GP-IB cable that conforms to this standard.
Connection Procedure
Connect the cable as shown below.
Precautions to be taken when Connecting the Cable
• Firmly tighten the screws on the GP-IB cable connector.
• Multiple devices can be connected using multiple cables. However, no more than 15
devices (including the controller) can be connected to a single bus.
• When connecting multiple devices, each device must have its own unique address.
• Use a cable of length 2 m or less for connecting the devices.
• Make sure the total cable length does not exceed 20 m.
• When communicating, have at least two-thirds of the devices turned ON.
• When connecting multiple devices, connect them in a star or linear configuration (see
the diagram below). Loop and parallel configurations are not allowed.
CAUTION
Make sure to turn OFF the PC and the instrument before connecting or
disconnecting cables. Otherwise, improper operation and/or damage to
the internal circuitry may result.