Instructions

Section
3: Using a remote interface Model DMM6500 6½ Digit Multimeter
User's Manual
3-10 DMM6500-900-01 Rev. B / August 2019
GPIB communications
The DMM6500 GPIB interface is IEEE Std 488.1 compliant and supports IEEE Std 488.2 common
commands and status model topology.
You can have up to 15 devices connected to a GPIB interface, including the controller. The maximum
cable length is the lesser of either:
• The number of devices multiplied by 2 m (6.5 ft)
• 20 m (65.6 ft)
You may see erratic bus operation if you ignore these limits.
GPIB communications require the KTTI-GPIB communications accessory card to be installed in the
instrument.
Install the KTTI-GPIB accessory card
Figure 21: KTTI-GPIB connector view
Unpack and inspect
Make sure to handle the KTTI-GPIB card carefully. Always grasp the card by the side edges.
Do not touch board surfaces, components, or areas adjacent to electrical contacts.
Contamination from foreign materials such as dirt, dust, and body oils can substantially
degrade card performance.
To unpack and inspect your card:
1. Inspect the box for damage.
2. Open the box.
3. Remove the card and inspect for any obvious signs of physical damage.
4. Report any damage to the shipping agent immediately.