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POWER LEADER™ Ethernet Gateway
Chapter 1 – Introduction
4
1–4 Specifications
The specifications of the Ethernet Gateway are
listed in Table 2.
Parameter Value
Control power 90–132 Vac or 180–264 Vac,
47–63 Hz; autoranging
Power supply =150 VA min
(contact your GE sales
representative for additional
voltage options.)
Modbus communications Four RS485 ports, 1200 baud,
2400 baud, 4800 baud, 9600
baud and 19.2 Kbaud.
Ethernet communications One PCL-843 16-bit Ethernet
card; supports 10BaseT or
10Base2 transport mediums.
Standards
UL Listed
CSA Certified
508 & 840
C22.2 No. 14
Table 2. POWER LEADER Ethernet Gateway specifications.
1–5 Environmental Requirements
The environmental requirements of the Ethernet
Gateway are listed in Table 3.
Parameter Value
Operating temperature 0° C to +50° C
Storage temperature –20° C to +80° C
Relative humidity 10% to 95% noncondensing
Vibration response and
endurance
IEC 255–21–1
Severity Class 1
Fast transient surge ANSI C37.90.1
Radiated EMI withstand ANSI C37.90.2
Electrostatic discharge IEC 801–2
Severity Class 4
Table 3. POWER LEADER Ethernet Gateway environmental
requirements.
1–6 Terminology
Following are definitions of some of the terms used
in this document.
POWER LEADER – The GE family of comprehensive
power management devices and system software used
to minimize downtime and overall power cost.
PMCS – Power Management Control System software.
SCADA (supervisory control and data acquisition) – A group
of systems including power management and control
systems.
DCS (distributed control system) – A group of systems
including building automation and status
monitoring systems.
Ethernet – An open, industry-standard, high-perform-
ance network communications protocol that operates
on 10BaseT or 10Base2 transport mediums and
yields communications rates up to 10 megabits per
second.
Modbus RTU (Remote Terminal Unit) – An open, industry-
standard, high-performance network communica-
tions protocol developed by Modicon/AEG
Schneider Automation.
Modbus-compatible device – Any device equipped with a
Modbus RTU communications port.
Modbus master – A host computer running PMCS
software.
RS485/EIA485 – A physical standard for multi-drop,
high-speed, noise-tolerant communications over a
twisted pair network; often used with the Modbus
RTU protocol.
Commnet – A GE proprietary communications network
standard.
Commnet-compatible device – Any meter, relay, trip unit, or
other device equipped with a commnet commu-
nications port.
Commnet segment – A group of one to four commnet-
compatible devices (including at most one waveform-
capturing meter) with all communication ports wired
to a single Concentrator commnet port.