Installation Manual

Reader Installation
© 1999, AXCESS
TM
Inc. 750.001.003
Revised June 1999
27
Network Specifications
An FTT network can be comprised of a loop, star, bus or a mixture of
wiring topologies (Figure 10).
Serial
Gateway
PC
Up to 32 FTT Readers
Max node to node
distance:
Figure 10 Example FTT network – a mixture of bus, star and ring
wiring topologies
IMPORTANT! Both of the following specifications must be met for
proper system operation:
Cable Type Max node to node
distance
Max total wire
length
Belden 85102 1640 feet (500 m) 1640 feet (500 m)
Belden 8471 1312 feet (400 m) 1640 feet (500 m)
Level IV 1312 feet (400 m) 1640 feet (500 m)
Category 5 820 feet (250 m) 1475 feet (450 m)
Max Node to Node Distance
The distance from each Reader to all other Readers on the network
must not exceed the maximum node-to-node distance. If multiple
paths exist, e.g., a loop topology, then the longest path should be
used for calculations (Figure 10).
Max Total Wire Length
Maximum total wire length is the total amount of wire connected per
network.