Introduction - ICP DAS USA I-87211W User Manual

I-87211W User Manual

1 Introduction

The I-87K Series of modules from ICP DAS can support either
MCU or I/O expansion units. The I-87211W features high sensitivity
and low power, and an ultra small form factor and includes DCON
and GPS protocols. The internal GPS module is powered by a
MediaTek solution and can provide superior sensitivity and
performance, even in as urban canyon environment or an
environment with dense foliage environment. Except for the GPS
data, I-87211W includes a 2-channel DO and a 1-channel PPS for
user applications. The Pulse Per Second (PPS) is an electrical
signal that very precisely indicates the start of a second, and can be
used for precise timekeeping and time measurement. The PPS
functionality can be combined with another time source that
provides the full date and time in order to ascertain the time both
accurately and precisely.
Consequently, the I-87211W can act as a powerful GPS module as
well as a general purpose GPS module with an RS-232 interface
for use with PACs and remote I/O expansion units. It can also be
implemented in automotive navigation system, personal positioning
and navigation system, marine navigation and satellite time
correction system, etc.
5/93 I-87211W User Manual V2.5, Oct. 2010