Schlumberger Sema TALWCNMIU1 Benutzerhandbuch
CellNet Pit MIU Master Rev. 1.0
04/14/99 3:13 PM
2
PRODUCT DESCRIPTION
The CellNet Ready Pit MIU (ProRead Only version) provides an interface between the
Schlumberger ProRead encoder register and the CellNet fixed network RF system. The MIU reads
the meter on a hourly basis and transmits this reading every 15 minutes to the CellNet network.
The MIU operates in a one-way mode using the unlicensed 902 to 928 MHz bandwidth to the
CellNet MicroCell Controller (MCC).
Schlumberger ProRead encoder register and the CellNet fixed network RF system. The MIU reads
the meter on a hourly basis and transmits this reading every 15 minutes to the CellNet network.
The MIU operates in a one-way mode using the unlicensed 902 to 928 MHz bandwidth to the
CellNet MicroCell Controller (MCC).
The pit version of the product has two primary components. The first is the MIU Housing
containing the electronics and battery. The MIU Housing is designed to be installed in high
humidity or flooded areas such as those located inside a meter pit or vault. The electronics in the
housing are attached by a coaxial cable to an antenna assembly. The antenna assembly is designed
to mount in the meter pit lid through a 1-3/4” hole that is drilled in the lid. The upper part of the
antenna is about 4” in diameter and slightly domed. The antenna assembly is designed to withstand
extremes in weather and traffic that it will be exposed to.
containing the electronics and battery. The MIU Housing is designed to be installed in high
humidity or flooded areas such as those located inside a meter pit or vault. The electronics in the
housing are attached by a coaxial cable to an antenna assembly. The antenna assembly is designed
to mount in the meter pit lid through a 1-3/4” hole that is drilled in the lid. The upper part of the
antenna is about 4” in diameter and slightly domed. The antenna assembly is designed to withstand
extremes in weather and traffic that it will be exposed to.
The MIU meets FCC regulations part 15.247, allowing higher output power and greater range. The
unit also meets CellNet’s “Over The Air RF Specification” which outlines the applicable
performance standards required to work within the CellNet network. The MIU uses direct
sequence spread-spectrum technology to avoid RF interference and enhance security.
unit also meets CellNet’s “Over The Air RF Specification” which outlines the applicable
performance standards required to work within the CellNet network. The MIU uses direct
sequence spread-spectrum technology to avoid RF interference and enhance security.
A few key features of the MIU are:
•
Increases meter reader safety.
•
Requires no field programming.
•
Improves reading efficiency
Compatible with Schlumberger ProRead equipped meters
Figure 1.1 Pit MIU