User's Manual

Polytel
®
Data Transmission System
8-1500-R - 10 -
A good rule of thumb is that the access point should be located either in the same or an
adjacent room to that where the measuring device is located. You can confirm that the
devices are working together correctly by looking for the blinking light patterns on the
access point to change within a minute after a measurement.
4.3 A note on telephone lines
The PWA-08-01 Access Point is designed to operate over “regular” or traditional telephone
lines. If you use a Voice over IP (VoIP) provider for your telephone service, you must
confirm with your provider that “fax and modem support” is enabled for the telephone line
you intend to use. VoIP service quality varies widely, and Polymap Wireless cannot
guarantee that the device will operate correctly with every type of VoIP line.
NOTE: this device is not designed for connection to digital PBX systems, such as might be
found in an office.
4.4 Batteries for the PWR-08-03
The PWR-08-03 accessory is powered by two lithium cells (CR2 size). To open the battery
compartment, slide the lid in the direction indicated by the arrow labeled “OPEN” on the
lid, and allow the lid to open. Please insert each battery with the negative side (–) down and
its positive end (+) up, as shown in figure 6. If the two negative ends or the two positive
ends of the batteries touch one another, the device will not operate. A set of batteries is
expected to last several months. To close the battery compartment, bring the lid gently
down against the batteries, and slide it in the direction opposite the “OPEN” arrow until the
lid stops.
4.5 Usage of PWA-08-01 Access Point
In normal use, there is no intervention required by the user. Nonetheless, indicator lights
are provided to give the user some sense of the correct operation of the device. There are
four indicator lights on the front panel of the Access Point. These are, respectively:
POWER, RADIO, TELEPHONE, and ERROR (see figure 4)
POWER (Green) Always on in normal operation
RADIO (Green) Blinks roughly once per second, more blinking while data is being
received
TELEPHONE
(Green)
Blinks when the device is connecting to the server to transfer its
data. Solid while the device is connected and transferring data
(usually only a few seconds)
ERROR (Red) Comes on when data was received by the Access Point but not
successfully transferred to the data center. This will occur, for
example, when the telephone is in use, or there is some other
congestion on the network. The Access point will keep trying,
every few minutes, until it succeeds in transferring the data. Note
that the forty most recent measurements are stored until they are
transmitted.
A rapidly flashing red light indicates that the telephone cord is not