Xylem H-2192 - Manual (Page 5)

Chapter 1
Introduction
1.1 Introduction to the H-2191 and H-2192
Both the H-2191 and H-2192 are modem based communication devices. The main difference is
the H-2191 is based on a standard land line connection while the H-2192 uses a cell phone based
modem for communications.
NOTE: Items discussed in this manual that apply to both the H-2191 and to the H-2192 will be
listed as H-219X. Subjects that pertain only to one unit or the other will use the appropriate
model number.
The H-219X data/voice modems operate in a fashion similar to many other modems, but they
also have been designed with special features that make them ideal for remote applications in the
data logging industry. While in a sleep mode, the H-219X draws very little power making them
ideal for battery operation. The advanced setup options are easily programmed through the serial
port or remotely via a data connection. The H-219X operate in several different modes.
Voice Call In Over Land Line or Cell Phone:
When called, the H-2191 will answer in a voice mode and later switch to a data mode if
necessary. The H-2192 acts the same as the H-2191 except it will not enter a data mode. The
voice mode allows the user to retrieve data by simply calling the H-219X from any touch tone
phone. Data for the voice mode normally comes form a W
ATER LOG series data logger. ®
Voice Call Out (ALARM) Over Land Line or Cell Phone:
The H-219X can also call out in a voice mode when an alarm condition exists.
Voice Over RF Radio Link:
This is the same as the land line or cell phone operation except the alarm call out option is not
supported. To call a site, instead of a phone number, a 2 to 4 digit code pressed on a keypad of
the calling radio is used.
Data Over Land Line Connection:
In the data mode, the H-2191 may be used to program or retrieve data from any W
ATER LOG ®
series data logger through the serial port. The connection is made using a terminal emulation
program such as Hyper Term running on a PC with a standard modem.
Data Over Cell Phone:
In the data mode, the H-2192 may be used to program or retrieve data from any W
ATER LOG ®
To access the data logger using the cell phone modem a TCP/IP connection must be used. This
can also be done using the Hyper Term program.
H-219X
Introduction 1-1