ADLINK LPCIe-3488A - Manual (Page 25)

Installation 15
LPCIe/LPCI/USB-3488A
if you use USB-3488A with a USB Hub, we suggest you to have
an independent power for the Hub.
Cabling
The following connection configuration can ensure that the GPIB
throughput achieves optimal performance. These configurations
include the number of instruments and cable distances:
X
Cable lengths should be no longer than 4 meters (2 meter
lengths maximum is suggested).
X The total GPIB BUS distance should be less than 20
meters.
X
The total number of devices must less than 15 (including
computer itself), and at least two-thirds (2/3) of the devices
are powered on.
Devices can be connected in a linear configuration, star configura-
tion, or combination of the two, as shown.
Figure 2-4: LPCIe/LPCI-3488A Linear Connection Configuration