Doc# E107706 11- 1
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
11: Meter with Internal Network Option
11: Meter with Internal Network Option
(INP200)
11.1: Hardware Overview
The Nexus® 1250/1252 meter with the Internal Network Option (INP200) has all the
components of the standard Nexus® meter, plus giving you the capability of connect-
ing to multiple PC’s via Modbus/TCP over the Ethernet and providing a DNP LAN/WAN
connection. Additional hardware is not required to establish a connection from a net-
work to a Nexus® meter with the Internal Network Option.
With the Internal Network Option, the Nexus® 1250/1252 provides an Ethernet Gate-
way, allowing access to other Modbus/RTU devices. Additional connections can
include a daisy chain of standard Nexus® and Shark® meters. A daisy chain can
include up to 31 meters. You can install repeaters if you need to connect more than
31 meters. (See Section 5.7 for repeater details.)
Figure 11.1: Meter Communication with Network Option/Daisy Chained Meters
CHASIS
Vaux.
Vref
NEXUS 1250
CHASIS
Vaux.
Vref
NEXUS 1250
CHASIS
Vaux.
Vref
NEXUS 1250
CHASIS
Vaux.
Vref
NEXUS 1250
Modbus TCP over Ethernet
RJ45 Ethernet
Modbus RS485 Communication
Daisy Chain
Network Connections
Daisy Chain
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