The Utility port will be always dedicated to Cosem protocol.
The Customer port can work with Cosem, TCP or DL/T645 protocol (SL764 only) depending to the configuration
programmed. This configuration can be done via Cosem protocol (CommunicationTypeParameters).
Remark: When the option ‘Data Push’ is selected during manufacturing of the meter, and if customer port is
configured in TCP, the meter can be configured to send automatically and periodically data from Load Profile 2
(minimum period duration: 5 minutes). Data are sent on a FTP server in a XML file.
Note: Earlier versions of the meter (before “IEC5”) have these port assignments reversed.
Modem power supply
The RJ45 connectors can provide a DC supply voltage (VMDM) suitable for powering an external modem.
10VDC -10/+20% at 300mA (3W max).
Modem powering restriction
The meter is able to start if at least one phase or the APS is present. All functions are available if :
APS is present and APS>100V
or if at least 2 phases are present.
If APS is not present, and meter is powered on 1 phase only, the modem power supply is inhibited.
If meter is powered with APS and APS <100VDC or APS<100VAC, the modem power supply is inhibited.
If meter is powered with 2 phases (modem power is so available) and one phase is lost, then modem power
supply is cut immediately.
If meter is powered with more than 2 phases or switch to the APS, the modem power supply management is then
authorized.
7.3. Real-time data
The meter can be configured to transmit real-time read-only data in accordance with IEC62056-21 through one of
the serial communication ports. This allows an external device or a SCADA (Supervisory Control And Data
Acquisition) system to collect and process the pre-defined metering data as and when it is required.
7.4. Modem connection
The meter supports HAYES™ command-set compatible modems that conform to the following CCITT protocol
standards:
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