Fiber
optic cabling solves these problems
and offers users:
High data rate
and wide bandwidth
Immunity to EMI
/ RFI and lightning damage
No ground loops
Low attenuation
(data loss)
Longer distance
- 2 and 5 km with Multimode fiber
or over 25 km with Single Mode
fiber
Small cable diameter
fits anywhere
Secure communications
Low system cost
Longer life expectancy
than copper or coaxial cable
Cabling
of the future
Advantages
of RFDC
The advantages
of RFDC depend on what kind of system
is currently in place-on-line, batch,
or manual. The advantages of RF
over alternative systems are outlined
in the following table:
System
Normal
Usage
Advantages
of RF
On-Line
Connects
a host computer to remote
readers via wires and cables.
The data is transmitted instantly.
Eliminates
wires and cables, and the
costs associated with them.
Offers portability while providing
instant access to collected
data.
Batch
Stores
data off-line in readers for
later upload to the host computer.
Permits use of protable readers.
Eliminates
delay between data collection
and transmission without sacrificing
portability. Minimizes risk
of lost data.
Manual
Uses
human labor to record to remote
readers via wires and cables.
The collected data is transmitted
instantly.
Speeds
up data collection. Eliminates
delay between data collection
and its availability to users.
Improves data accuracy and
drastically reduces labor
costs relative to data collection.
Advantages
of Leased lines
Leased lines provide
a reliable connection, being rented
for a fixed monthly fee, irrespective
of the overall rental period.
Leased lines are
customer dedicated, and highly
recommendable for customers requiring
regular and lengthy connections
between two fixed locations, as
well as a fast, effective and
reliable communication channel
for data sending and receiving.
A leased line may
be used on a continuous basis
to transmit large amounts of data
at the maximum rate allowed by
the line.
Leased lines provide
a wide range of transmission rates,
designed to fit various applications.
Users can opt for a specific line
type according to the volume,
type and rate of the transmitted
data.
Leased lines allow
accurate budget calculation.
Advantages
of digital leased lines as compared
to analog lines :
Easy upgrading
and downgrading, in terms of the
transfer rates required by the
customer (nx64Kbps, where n=1÷16
and 2 Mbps).
