User's Manual

SK Tx Module
Technical Guide
Connection between the SK Tx module and a host
device is provided by a single 12 pin header. The pin
out and operation of pins is described below.
Pin 1 - DC Power Supply 3.3v to 6.0v
Pin 2 - Ground
Pin 3 - General Input
Pin 4 - General Output
Pin 5 - Not Used
Pin 6 - Not Used
Pin 7 - Serial Data Output (9600 bps, N81)
Pin 8 - Serial Data Input (9600 bps, N81)
Pin 9 - Reset (Enable High, Disable/Powerdown Low)
Pin 10, Pin 11, Pin 12 - Not Connected, Not Used
Module Installation
The SK Tx module may be installed in a battery pow-
ered host device. The SK Tx module is not permitted
to be installed in any host device that connects to
mains power (for example to a wall outlet).
To maintain regulatory authorization to use the SK
Tx module in a host device, following the installation
of the SK Tx module into a host device, it is required
that the included label sating “This device includes
FCC ID: V4TSKT1” be applied to an exterior non-
removable surface of the host device. Do not apply
to a battery door of the host device. An example of
this label is provided on the next page of this guide.
This guide includes technical specication of the SK
Tx Module, as well as guidelines for installation of
the module into a host device.
Module Connections
SK METER MODULE
Model: SK Tx FCC ID: V4TSKT1 IC: 7822A-SKT1
Green Light
Pin 1
Pin 12