5–2 EPM 9450/9650 ADVANCED POWER QUALITY METERING SYSTEM – INSTRUCTION MANUAL
COMMUNICATION OVERVIEW CHAPTER 5: COMMUNICATION WIRING
RJ11 Telephone Line allows a EPM 9450/9650 meter with an Internal Modem (Comm
Option 2) to communicate with a PC. No other hardware is necessary for this easy-to-use
connection. For more details, see Chapter 10.
Figure 5-1: RJ11 Communication with Internal Modem Option
RJ45 Network Connection allows a EPM 9450/9650 meter with the Internal Network Option
(Comm Option 1) to communicate with multiple PC’s simultaneously. No other hardware is
necessary for this easy-to-use connection. In an EPM 9450/9650 meter with Comm Option
1, Port 2 becomes a Gateway for connecting multiple EPM meters using RS485.
See Chapter 11 for Comm Option 1 details.
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