Electro-Voice 1252 - Manual (Page 131)

Electro Industries/GaugeTech Doc # E107706 V1.25 11-1
Chapter 11
Nexus Meter with Internal Network Option
11.1: Hardware Overview
Q The Nexus 1250/1252 Meter with the Internal Network Option has all the components of the
standard Nexus Meter PLUS the cabability of connecting to a multiple PC’s via Modbus/TCP over
Ethernet. Additional hardware is not required to establish a connection from a network to a Nexus
with Internal Network Option.
With the Internal Network Option, the Nexus 1250/1252 provides an Ethernet Gateway, allowing
access to other Modbus/RTU devices. Additional connections can include a daisy chain of standard
Nexus Meters. A daisy chain can include up to 31 meters. If more are desired, the installation of a
repeater allows additional meters. (See section 5.15 for repeater details.)
Figure 11.1: Nexus with Internal Network Option
10/100BaseT
or 10BaseT
RJ-45
RS-485
Network
Daisy Chain
MODBUS/RTU
MODBUS/TCP
over Ethernet