User manual for poly-phase meter
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17 Communication interface
17.1 Optical communication
Comply with IEC62056-21 optical communication physical interface standard.
Front view of optical port
Signal wavelengths: 900nm~1000nm(infrared).
The optical port of the meter has an iron absorbing plate in order to get the optical
port(with magnetic)fixed better, to ensure the communication accuracy and to avoid
the drop of optical port by force.
Optical port
Communication standards: IEC62056-21 E mode or DLMS HDLC, default is E
mode. 300bps standby, 9600 bps for communication(4800~19200bps configurable)
17.2 RS485 interface(optional)
Communication protocol: DLMS HDLC or IEC62056-21 E mode, default is