The PLT-22 transceiver meets the regulations for AC mains signaling of the FCC
(Federal Communication Commission), Industry Canada (formerly DOC), CENELEC
(European Committee for Electrotechnical Standardization), and Japanese MPT
(Ministry of Post and Telecommunications).
Under FCC Section 15.107 "Limits for carrier current systems," as well as Industry
Canada guidelines, communication frequencies are allocated as shown in figure 1.3.
To protect aircraft radio navigation systems operating between 190kHz and 525kHz,
restrictions on power line communication above 185kHz are being considered
7
. The
PLT-22 transceiver avoids interfering with these systems by signaling in the
frequency range of 110kHz to 140kHz.
100kHz 200kHz 300kHz 400kHz 500kHz 600kHz 700kHz
Restricted
PLT-22
Transmit
Signals
General
Use
Restrictions Under
Consideration
Figure 1.3
FCC and Industry Canada Frequency Allocation
Under CENELEC EN 50065-1 “Signaling on low-voltage electrical installations in the
frequency range 3kHz to 148.5kHz” Part 1 “General requirements, frequency bands
and electromagnetic disturbances," communication frequencies are allocated as shown
in figure 1.4. When used with a 10MHz crystal, the PLT-22 transceiver signals in
CENELEC C and B bands and implements the access protocol as specified in
CENELEC EN 50065-1 (see
CENELEC Access Protocol
section in Chapter 3 for more
information). For operation in the CENELEC A-band, refer to
Using the L
ON
W
ORKS
PLT-22 Power Line Transceiver in European Utility Applications
.
L
ON
W
ORKS
PLT-22 Transceiver User’s Guide
1-5
Summary of Contents for LONWORKS PLT-22
Page 6: ...iv Echelon...
Page 14: ...1 8 Introduction...
Page 67: ...LONWORKS PLT 22 Transceiver s User Guide 5 7 Figure 5 3 Capacitor Input Power Supply Schematic...
Page 92: ...6 10 Design and Test for Electromagnetic Compatibility...
Page 110: ...7 18 Communication Performance Verification...
Page 114: ...8 4 References...
Page 118: ...A 4 Appendix A...
