SFSL5.5MDB YAMAR [Yamar Electronics Ltd.], SFSL5.5MDB Datasheet - Page 2

• Manufacturer Part Number: SFSL5.5MDB
• Description: Smart Slave for DC-BUS Powerline Network
• Manufacturer: YAMAR [Yamar Electronics Ltd.]

2.1
2.2
2 OVERVIEW
The SIG61 is an independent slave in a Master-Slaves network operating on a selected narrow band
channel. A single SIG60 master controls all the slaves in a network; the slaves may be SIG61 devices
as well as SIG60 devices operating as slaves.
Proper Network operation is maintained by employing 5 types of command messages: Read, Read-
change, Write, Sleep and Change-Frequency. The command format is similar to the standard Universal
Asynchronous Receiver Transmitter (UART).
The SIG61 has internal narrow band modem, capable of operating in noisy environments. The receiver
listens to the DC-BUS on its preset frequency. It filters out the signal from noise and interference and
tries to recover the original command. If the checksum is correct, the SIG61 extracts the ID, Command
and the Data.
If the received ID matches its own ID, the SIG61 proceeds to detect the received command. When a
Write command is received, the data part of the command is directed to the corresponding 8 output
pins. When a Read command is detected, the SIG61 responds by transmitting a dedicated message
towards the master containing an image of its 8 input pins.
Multiple networks can operate concurrently on the same wire using different carrier frequencies.
The SIG60-SIG61 network supports 16 combinations of frequency pairs. When set to such a pair, it is
easy to switch from one frequency to the other when such need arises. Each channel accommodates a
single SIG60 master and up to 15 SIG61/SIG60 slave devices. Additional SIG60-SIG61 networks can
coexist on the same power line by employing different frequencies for each network, thus allowing
different applications.
Channel frequencies:
Data transfer rate:
Cable length:
Figure 2.1 outlines the building blocks of the SIG61 device.
© 2010 Yamar Electronics Ltd.
Preliminary and proprietary Information of YAMAR Electronics Ltd. Subject to change without notice.
Channels and Network
The SIG61 Device
Dependant on external AC loads connected to the DC line.
1.75MHz, 4.5MHz, 5.5MHz, 6.0MHz, 6.5MHz, 10.5MHz and 13.0MHz.
9.6Kbps up to 115.2Kbps.
Figure 2.1 - SIG61 Logical Blocks
2
DS-SIG61 R0.932