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Elster EA Gatekeeper 2120 Installation Instructions Manual
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Elster EA Gatekeeper 2120 Installation Instructions Manual

Elster EA Gatekeeper 2120 Installation Instructions Manual

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EA_Gatekeeper model 2120
Installation instructions
IL42-5037A
General
®
Within the EnergyAxis
System, the EA_Gatekeeper is the intelligent interface between the EnergyAxis
Management System (EA_MS) and the local area network created by the gatekeeper (referred to as the
EA_LAN). As the interface, gatekeepers are equipped with WAN and LAN communication capabilities.
Depending on the need, utilities have options when choosing how to deploy the EA_Gatekeeper into
®
service. For example, the EA_Gatekeeper module can be installed in an A3 ALPHA
meter if revenue
metering is required at a particular site. If deploying meter-based gatekeepers is neither feasible nor
desired, the EA_Gatekeeper can be enclosure mounted in different form factors.
This leaflet explains how to install the gatekeeper model 2120.
This model of EA_Gatekeeper is configured for 120VAC operation only and uses a battery for backup
gatekeeper operation if AC power fails at site. The EA_Gatekeeper model 2120 uses a NEMA-4 rated
polycarbonate enclosure. The EA_Gatekeeper supports different mounting options, including mounting
on 18-foot (5-meter) to 35-foot (11-meter) utility poles and telephone poles. Instructions on preparing the
EA_Gatekeeper model 2120 for pole mounting are provided in the instructional leaflet IL42-5019.
Figure 1 shows the major components of the EA_Gatekeeper model 2120. Figure 2 shows an illustration
of an assembled gatekeeper.
Because of the self discharge rate of the system backup battery, this product must be powered up
within 60 days of receiving. If the battery drops below 11.25 VDC for an extended period, the battery
may need to be charged with a shop charger or be replaced.

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Summary of Contents for Elster EA Gatekeeper 2120

  • Page 1 EA_Gatekeeper model 2120 Installation instructions IL42-5037A General ® Within the EnergyAxis System, the EA_Gatekeeper is the intelligent interface between the EnergyAxis Management System (EA_MS) and the local area network created by the gatekeeper (referred to as the EA_LAN). As the interface, gatekeepers are equipped with WAN and LAN communication capabilities. Depending on the need, utilities have options when choosing how to deploy the EA_Gatekeeper into ®...
  • Page 2 EA_Gatekeeper model 2120 Figure 1. Isometric view of EA_Gatekeeper model 2120 Wall mounting flange LAN antenna Parts bag Enclosure vent Lockable hasps Ethernet Ethernet cable surge protector Gatekeeper electronics module Figure 2. EA_Gatekeeper model 2120 Wall mounting flange SPD modules AC line breaker DC fuse holder TOU backup battery...

  • Page 3: Before You Install

    EA_Gatekeeper model 2120. For optimal performance of the LAN antenna, Elster recommends that the EA_Gatekeeper model 2120 be installed so that the enclosure is at least 5 feet (1.5 meters) off the ground. Failure to meet the minimum ground clearance can result in degraded performance of the EA_Gatekeeper model 2120 communications within the EnergyAxis System.

  • Page 4: Lan Communications

    EA_Gatekeeper model 2120 To maintain the NEMA 4X integrity of the device, steps must be taken to ensure proper sealing of the enclosure features. The cable used for Ethernet communications and to power the EA_Gatekeeper model 2120 must be a smooth round jacketed outdoor rated cable. The enclosure lid screws must be installed in the corners of lid and torqued to 20 inch-pounds.
  • Page 5 EA_Gatekeeper model 2120 power is connected to the “L1” terminal, neutral is connected to “L2”, and ground is connected to the “G” terminal. 5 Insert the battery fuse into the fuse terminal. To preserve battery life during shipment and storage, the EA_Gatekeeper is provided without the battery fuse installed.
  • Page 6 In no event will Elster Solutions, LLC be responsible to the user in contract, in tort (including negligence), strict liability or otherwise for any special,...