HP 9122D Service Manual page 18

Interface Information
be connected together, cables shorter than two metres must be used between some of the devices to keep
the total cable length less than 20 metres.
4. The max:imum number of devices that can be connected together in a one-bus system is 15.
There are no restrictions to the way cables may be connected together; however, it is recommended that no
more than four piggyback conneGtors be stacked together on one device. The resulting structure could exert
enough force on
thf~
connector mounting to damage it.
3-2