Model 110A: Multi-Segment FTT-10 Physical Layer Repeater
Each Model 110A is a
two-channel physical layer repeater for FTT-10 LonWorks networks.
Data received on one channel is reconditioned and re-transmitted on the
other channel. Each Model 110A
effectively doubles the wiring distance and the number of nodes that can be
placed on the network. On-board
jumpers allow each channel to be terminated independently for bus or free
topology. A local 3.5 mm network jack allows a convenient way to connect
an installation or diagnostic tool to the network without disconnecting any
Three LED’s provide
diagnostic information for troubleshooting.
A green LED indicates when power is applied.
Two red LED’s indicate when data is being received on each of the two
The Model 110A operates from a
wide range of low voltage AC or DC power sources allowing it to be easily added
to existing systems. The power
input has transient voltage suppression as well as over current protection using
a self-resetting fuse. This
provides protection to the unit under most fault conditions.
The Model 110A is a drop in
replacement to our Model 110 product. A
new feature in the Model 110A allows multiple repeaters to be daisy chained
together to create multi-segment repeaters.
This is accomplished via a short jumper cable between units.
Data received on one network segment is transmitted on all other network
segments. For example, assume three
Model 110As are daisy chained together. This
equates to six total network segments since each repeater has two.
Data received on any one network segment is reconditioned and sent on the
other five network segments. This
ability allows the user to create a field expandable multi-segment repeater from
two to ten channels using a single product.
Note, the daisy chain feature
of the Model 110A is not on the network side but actually takes place on a
separate daisy chain bus between repeaters.
This has several advantages. One,
there is minimal delay between the received signal and the repeated signal.
Even with a ten-segment repeater (5 Model 110As), the delay is equivalent
to a single repeater. Two, each
network segment is completely isolated from all other network segments.
A short on one segment will only affect that segment and not the others.
wiring distance of FTT-10 LonWorks Networks
to 5 repeaters can be daisy chained together to create a multi-segment
repeater of up to 10 channels
cost alternative to routers configured as repeaters
wiring is to removable terminal blocks for ease of service
insensitive AC/DC wide input voltage range
power has over current and transient voltage suppression
Rail mount enclosure is only 36 mm (1.42”) W x 90 mm (3.54”) L x 58 mm
for bus and free topology
mm network jack for local installation tool connection
and power indicators to assist in field diagnostics