EXTEND-A-BUS Series0 pages
Data Sheet
EXTEND-A-BUS Series
Fieldbus Extender for DeviceNet
• Fibre optic or coaxial cabling
• Star, bus or distributed-star topology
• Variable data rates up to 500 kbps
• Low-voltage AC- or DC-powered
• Panel-mount or DIN-rail mount
• CE Mark
• RoHS compliant
• Extends the length of DeviceNet networks up to 6 km
• Fully DeviceNet compliant
PRODUCT OVERVIEW
The EXTEND-A-BUS Series can extend DeviceNet
up to six kilometers — linking individual DeviceNet
subnets together into a single larger network.
Each EXTEND-A-BUS unit creates a DeviceNet subnet and
at least two units are needed to link subnets together. The
data rate on each subnet can differ from those of other
subnets. DeviceNet identifiers or MAC IDs cannot be
duplicated on any of the subnets. Each EXTEND-A-BUS
pair is best viewed as an extension cord. A unit does not
consume a permanent MAC ID, therefore it is transparent
to the network.
TD960801-0DB
The backbone side of the EXTEND-A-BUS must
adhere to standard ARCNET® cabling rules.
Companion AI ARCNET active hubs are available for
extending the backbone cabling. Hubs are cascaded to
achieve the maximum distance: up to 6 km when using
coaxial cabling and ten active hubs or up to 4.8 km when
using a fibre optic backbone and two active hubs.
Page 1