ES-10B 4 Terminal Single Phase Residential Electricity
Meter - Product Guide
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Version / Status: 1.1
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7.6 Local Optical Port
Note: The optical port is used for triage and test purposes.
The local optical port position is shown in 4 within Figure 5-1: ES-10B Meter.
The ES-10B uses an optical interface to connect the meter to a PC/Test bench/Portable device
using a magnetic optical port read head. The optical interface provides a serial connection to the
device at 9600 baud.
Once the meter has left the factory it is in locked (or operational) mode. The optical interface only
allows a limited subset of read commands (not customer sensitive) to be accepted.
The optical port is only functional when the tamper switch under the terminal cover is released. To
release the switch, you do not need to completely remove the terminal cover.
Note: You do not need to completely remove the terminal cover. The recommended
practice is to simply loosen the terminal cover until the tamper switch releases.
8 Battery
The ES-10B is fitted with an integral, non-replaceable, 3.0V Lithium primary cell, which is
connected during manufacture and sealed inside the case. There is no optional external battery
and it is not user replaceable.
The purpose of the battery is to keep the Real Time Clock running when the meter is not powered
and to maintain the meter’s physical tamper protection by retaining tamper alerts to be sent to the
supplier when power to the meter is restored.
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