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| 型號： | IC_SS |
| 文件頁數(shù)： | 1/36頁 |
| 文件大?。?/td> | 480K |
| 代理商： | IC_SS |
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TL/DD11727
I
PRELIMINARY
February 1995
ICSS1001, ICSS1002, and ICSS1003
IC/SS Power Line Carrier
Local Area Network Chip Set
General Description
Integrated Circuit/Spread Spectrum (IC/SS
TM
) is a power
line carrier local area network system implemented in a
three chip solution, using power line carrier technology de-
veloped by Itron and Cyplex. It is designed to operate with
high reliability over the full range of power line conditions.
IC/SS is offered with an integral local area network proto-
col, designed specifically for supervisory control and data
acquisition applications.
Features
Y
Spread spectrum, adaptive frequency hopping modula-
tion provides high immunity to power line noise.
Y
Network/transparent option offers the user the ability to
carry proprietary protocols transparently, or to use the
built-in link layer protocol.
Y
A very flexible interface to the user’s circuit is provided,
configurable either to accept serial data or to accept
data from an 8-bit parallel bus. Handshake lines are
provided to facilitate interface to common microproces-
sors in parallel mode.
Y
When used with the specified coupling networks, the
modem
operates
in
conformance
CENELEC
standard
for
(9 kHz–95 kHz), and with FCC Class A requirements.
with
utility
both
application
the
electric
Y
Data rate is variable, based on line conditions, from
300 bps to 3200 bps.
Y
When used with the specified coupling networks, the
system provides 93 dB of dynamic range, appropriate
for line loading and attenuation effects common on
power lines.
Y
The modem’s bit error rate performance in additive
white noise approaches the theoretical maximum, and
in addition it provides excellent immunity to the impul-
sive noise characteristic of power lines.
Applications
Y
Automated meter reading (AMR)
Y
Demand side management
Y
Distribution automation
Y
Environmental control systems
Y
Other power line carrier applications requiring high
reliability
Block Diagram
TL/DD/11727–1
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation.
MICROWIRE
TM
and WATCHDOG
TM
are trademarks of National Semiconductor Corporation.
IC/SS
TM
is a trademark of Cyplex.
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.
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