7.1 Overview
The metering detector daughter board reference is 3AH 37003 AA.
The metering detector daughter board detects charging impulses. These impulses, coming
from the public network, can be used by the metering process. This daughter board is optional.
A metering detector daughter board is plugged on the NDDI2-2 (LS/GS) mother board and can
process four analog lines. Two daughter boards are needed for the eight lines of NDDI2-2
(LS/GS).
Note:
Two different types of metering detector daughter board must not be installed on a same NDDI2-2
(LS/GS) mother board.
For more information on connection, see: NDDI2-2(LS/GS) - External connections .
The metering detector daughter board can detect 12 or 16 kHz impulses. The type of impulses
to be detected can be configured with straps located on the mother board.
The sensitivity of detection (in mV) can be adjusted to the impulse level with straps located on
the mother board.
For more information on configuration, see: NDDI2-2(LS/GS) - Hardware configuration .
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7-1
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