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DAVIS Terminal Box Install Manual

Davis terminal box weather-accessories: install guide

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The Terminal Box provides easy, reliable connections for splicing wires and
cables. All connections are housed in a weather-resistant enclosure. The termi-
nal box can simplify and speed up the task of wiring the weather station sen-
sors, sensor interface module (SIM), and communication lines.
Note: The terminal blocks in the Terminal Box are rated for 300V, 10A and are intended for 26-16 AWG
(.08-1.5 mm) wire. When wiring, all applicable building and electrical codes must be followed.
When connecting shielded cables to shielded cables, connect each colored wire
to the same colored wire on the extension cable (or other cable). In twisted-pair
cables, all black wires are ground and may be shorted together.
When connecting standard cables to standard cables, you may also connect
each colored wire to the same colored wire on the extension cable (or other
cable). In some cases, however, wires may be combined in order to use fewer
terminals on the terminal block. Consult the table below:
S
ENSOR
Rain Collector
Temp/Hum Sensor
Temp Sensor
UV/Leaf Wetness Sensor
Solar Radiation Sensor
Anemometer
SIM/Junction Box Cable
W
W
IRES IN
IRES
S
. C
U
TD
ABLE
SED
4
2
6
5
4
2
6
3
4
3
4
4
8
8
T
E R M I N A L
N
S
OTES FOR
Twist RED and BLACK as one wire and GREEN and YELLOW as
another wire.
Twist RED and BLACK as one wire (ground).
Twist RED and BLACK as one wire (ground). Ignore GREEN.
Twist RED and BLACK as one wire (ground). Ignore GREEN and
BLUE.
Twist RED and GREEN as one wire (ground).
B
O X
C
TANDARD
ABLES
Product # 7774

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Summary of Contents for DAVIS Terminal Box

  • Page 1 (SIM), and communication lines. Note: The terminal blocks in the Terminal Box are rated for 300V, 10A and are intended for 26-16 AWG (.08-1.5 mm) wire. When wiring, all applicable building and electrical codes must be followed.
  • Page 2 OMPONENTS The Terminal Box includes the following components. Please make sure you have all listed components before continuing. Terminal Box with Terminal Blocks Two #8 x ” (19 mm) Self-Threading Screws OOLS AND ATERIALS You may need some of the following tools and materials in order to install the terminal box.
  • Page 3: Mounting The Terminal Box

    2. Drill pilot holes in the marked locations using a drill with a #29 (.136”, 3.5 mm) drill bit. 3. Secure the Terminal Box to the mounting surface using the #8 x ” (19 mm) screws as shown below. Mounting the Terminal Box...
  • Page 4: Terminal Block

    If routing cable to the top terminal block, you may route cables either under the metal plate (to which the terminal blocks are attached) or over the metal plate, as picture below. Page 4 ERMINAL LOCK OUTING ABLES Terminal Box...
  • Page 5 “position.”) It will probably aid you in keeping track of wire connections if all of the wires coming into the Terminal Box (from the sensor, for example) are connected on one side of the terminal block and all of the wires leaving the Terminal Box (going to the SIM, for example) are connected on the other side of the terminal block.
  • Page 6 Using the Terminal Box to Connect Standard and Shielded SIM Cables If you wish to use the Terminal Box to splice a shielded 8-conductor cable from the SIM to the standard 8-conductor cable running to the console, you will need to determine the wire assignments for the terminal blocks before you remove the modular connector at the end of the standard cable.
  • Page 7 Connecting to the Terminal Block Page 7...
  • Page 8 Product Numbers: 7774 Davis Instruments Part Number: 7395-103 Terminal Box Rev. A Manual (7/8/99) This product complies with the essential protection requirements of the EC EMC Directive 89/336/EC. © Davis Instruments Corp. 1996. All rights reserved.