DAVIS Wireless Repeater 7614 User manual

Product # 7614 & 7615
Wireless Repeater
Installation Manual
The Wireless Repeater receives data from a Wireless Weather Station sensor
array and re-transmits it to the console. The repeater serves to extend the
transmission range and improve reception between the sensor array’s trans-
mitter and the console’s receiver.
One repeater can send data to any number of Monitor II or Wizard III consoles,
as long as each console contains a receiver. It can also receive and re-transmit
data from up to 8 sensor arrays, as long as each array has a transmitter set to a
unique ID code.
The repeater’s flexibility allows you to put together your weather system in a
number of different ways. The most common setup is to plant the repeater in
between a transmitter and a receiver to improve reception. Another possibility
is to plant a series of repeaters to carry the transmitter’s signal over a longer
distance, or around obstacles.
Note: The Wireless Repeater operates on a low power frequency that does not require you to obtain
an FCC license.
Installing the Wireless Repeater
How you go about installing the repeater depends on how many repeaters and
transmitters you plan to install. The first section below will discuss the most
common and simplest installation—that of one transmitter, one repeater and
one receiver. The following section will discuss daisy-chaining the repeaters in
succession to increase the range.
Single Transmitter, Single Repeater Installation
If you have just one sensor array (with transmitter) and just one repeater, sim-
ply follow the instructions below to install your system.

Page 2 Wireless Repeater
Choosing a Location
✦ AC-Powered Repeaters
Install in a sheltered location, with access to an AC-power outlet. Posi-
tion between the transmitter and the receiver so as to minimize the num-
ber of walls and other obstacles between both the transmitter and the
repeater or the repeater and the receiver.
✦
Solar-Powered Repeaters
Find an outdoor location between the transmitter and the receiver so as
to minimize range and obstructions. Position the solar panel such that it
will receive maximum exposure.
Setting up the Repeater
The repeater is pre-set by the factory to listen for a transmitter whose ID code is
also set to the factory default. If you have not reset the transmitter’s ID code
from the factory default, then your repeater should pick up its signal automati-
cally.
If you have changed the transmitter ID code to one of the 7 other optional dip
switch settings, you need to set the repeater to listen for that ID code. To do so,
first find your current transmitter setting in the following table:
Then, set your repeater to listen for that ID code by flipping the appropriate
SENSORLINK TX dip switch. For example, if your transmitter’s dip switches
are set to OFF, ON, OFF, then you would flip dip switch #3 on your repeater to
ON.
Powering the Repeater
To apply power to the repeater, do the following:
✦
AC-Powered Repeaters
Plug the AC-power adapter into the jack marked POWER, and into an
AC-power outlet.
✦
Solar-Powered Repeaters
Plug the solar power cord into the the jack marked POWER.
ID C
ODE
D
IP
S
WITCH
1D
IP
S
WITCH
2D
IP
S
WITCH
3
#1 (default)
off off off
#2 off off ON
#3 off ON off
#4 off ON ON
#5 ON off off
#6 ON off ON
#7 ON ON off
#8 ON ON ON

Multiple Repeaters Installation Page 3
Both LEDs should flash once when power is applied. If all is well, both LEDs
should flash again, two times quickly, about 12 seconds later. After that second
double-flash, the unit begins looking for a signal. If it finds one, the lower LED
will flash as the data is received and then the upper one will flash as it trans-
mits.
Test Mode
In test mode the lower green LED flashed each time the unit receives data. The
upper green LED flashes when it re-transmits that data. Use this mode to ver-
ify that your transmitter is working. Turn off test mode to get the longest bat-
tery life. Test mode is enabled by toggling the fourth Repeater ID dip switch to
the ON position and then, if necessary, removing and reapplying power.
Multiple Repeaters Installation
If you have more than one repeater in your network, follow the instructions as
if for a single repeater installation but, before you apply power, set the repeater
ID codes so that each will listen to the repeater before it in succession. The first
repeater (i.e., the repeater closest to the transmitter) needs no adjustment. The
second repeater, however, needs to be set to Repeater ID #2; and the third, to
#3; and so on. In this way, the third repeater will only tune into signals from
the second, and the second will only tune into signals from the first, and so on,
thereby improving reception.
To set each repeater’s ID code (except the first), use the table below to set the
Repeater ID dip switches:
Once you have set the ID codes, simply continue with the “Powering the
Repeater” instructions on page 2. There is no need to configure the repeaters to
listen to a specific transmitter ID code, unless you want a repeater to listen to
an entirely new transmitter aside from the one whose signal it’s repeating.
ID C
ODE
D
IP
S
WITCH
1D
IP
S
WITCH
2D
IP
S
WITCH
3
#1
(default)
off off off
#2 off off ON
#3 off ON off
#4 off ON ON
#5 ON off off
#6 ON off ON
#7 ON ON off
#8 ON ON ON

Product Numbers: 7614 & 7615
Davis Instruments Part Number: 7395-105
Wireless Repeater Installation Manual
Rev. A Manual (4/29/99)
Controlled Online: Weather Manuals:Accessories:Wireless Repeater
This product complies with the essential protection requirements of the EC EMC Directive 89/336/EC. ©
1998 Davis Instruments Corp. All rights reserved.
3465 Diablo Avenue, Hayward, CA 94545-2778
510-732-9229 • Fax: [phone]
E-mail: [email protected] • www.davisnet.com
Specifications
SensorLink Repeater
Transmit frequency: 916.5 MHz
ID codes: 8 user-selectable
License: Low power (less than 1 mW), no license required
Temperature range: -40 to 60 °C
Power Input: 5 to 12 VDC output @ 1mA
FCC Part 15 Class B Registration Warning
This equipment has been tested and found to comply with the limits for a class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instruc-
tions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television recep-
tion, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
✦
Reorient or relocate the receiving antenna.
✦
Increase the separation between the equipment and receiver.
✦
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
✦
Consult the dealer or an experienced radio/TV technician for help.
Shielded cables and I/O cords must be used for this equipment to comply with
the relevant FCC regulations. Changes or modifications not expressly
approved in writing by Davis Instruments may void the user's authority to
operate this equipment.