EMP/Rain Gauge Interface Installation
1-Wire Indoor Sensor/Interface Kit

Refer to the layout diagram for clarification of parts placement. All references to up, down, left, and right assume that you are looking at the PCB with the silkscreen TAPR logo oriented up on the board. Unless noted otherwise, all components are mounted on the top of the PC board.

This portion of the assembly should only be done if the EMP sensor and rain gauge will be connected to this board. If you purchased the X1W-2 Outdoor Sensor/Interface board, and the EMP sensor and rain gauge will be connected to it, proceed to the next page.

Warning! - Read the following carefully:

If the EMP sensor and rain gauge will be connected to the outside board, do not continue with the instructions on this page. Go to the next page in the procedure.
 
If the RM-60 or RM-70 background radation monitor will be used with this board instead of a rain gauge, do not continue with the instructions on this page. Go to the RM-60/RM-70 installation page Section 2: Main Interface instead.
 

Sorry to be repitious about this, but putting the components on the wrong board or following instructions for a feature you will not be using will cause some major grief.

All remaining components for the EMP sensor/rain gauge interface will be installed below. Use the same procedure as you did for the same type of components installed previously.

5% Tolerance Resistors

Ok
Procedure
  10K, 5% (brown-black-orange-gold) at R1
  10K, 5% (brown-black-orange-gold) at R2
  220, 5% (red-red-brown-gold) at R3
  100, 5% (brown-black-brown-gold) at R4
  Solder and clip eight leads. Wear safety glasses and observe proper precautions!

Monolithic Capacitors

Ok
Procedure
  0.1 uF (104) at C1
  100 pF (101 or 100) at C24
  Solder and clip four leads. Wear safety glasses and observe proper precautions!

Ferrite Beads

Ok
Procedure
  Ferrite bead at L6.
  Ferrite bead at L7.
  Solder and clip four leads. Wear safety glasses and observe proper precautions!

IC Sockets

Ok
Procedure
  6-pin DIP socket at U1. Pin one (or the notch) faces towards the bottom edge of the board.
  6-pin DIP socket at U3. Pin one (or the notch) faces towards the bottom edge of the board.

Diode

Ok
Procedure
  D1 - BAT42, Schottky Barrier Diode
  Solder and clip two leads. Wear safety glasses and observe proper precautions!

Connectors

Ok
Procedure
  RCA Female Jack at J2. The fit may be a bit tight. Gentle pressure might be required to properly seat the part on the board. Take your time if this is the case.
  RJ11 6-4p female jack at J1

9V Battery Connector

If you are thinking about using a power supply instead of a battery for the EMP detector, don't. The opto-isolator is there for protection. If an external supply is used, you will risk allowing an EM discharge to possibly enter the equipment through the power supply lines or ground causing possible damage, bypassing the protection offered by the opto-isolator. Battery life is typically one to two years, depending on EMP activity.

Wires are fed to the board from the top.

Ok
Procedure
  Solder the red lead to the + hole at P7
  Solder the black lead to the - hole at P7

Jumper

Use a clipped resistor lead for the jumper in the next step. As you install the jumper, solder both wires and clip the excess.

Ok
Procedure
  Jumper at R101

Next