Introduction - M-Labs APOLLO series User Manual

1 Introduction

The APOLLO series (including models CDMA/CDMA-B/CDMA-BA/CDMA-G/CDMA-B-
G/CDMA-BA-G) are self-contained vehicle tracking devices that combine GPS location with
CDMA connectivity.
Logically, the APOLLO appears to a user or a server application as a single endpoint device. It
can be queried, updated and configured either through a serial connection, an over the air
CDMA IP connection, or through SMS messaging. The APOLLO series present themselves
over these connections as an enhanced cellular modem with attached functional elements.
These elements include:
□ GPS location engine
□
2 Ge ne ral Purpose Bidirectional I/ O (GPIO) pins
□
1 Re lay drive pin out put
□
Serial UART port
□
Input volt age monitor (optional)
□
Tim e rs
□
Wat chdog lockup prot e ct ion (Dedicated watchdog circuit is optional)
□
Fact ory load option for motion detection
Access to these elements and general purpose interfaces is done through an extended AT
command set as defined herein.
Application diagram:
This product is designed based on the VIA CBP8.2 CDMA 1X 800M&1900M Baseband chip,
which includes GPS functionality, ARM CPU and CDMA protocol. This Baseband chip is
connected to 256M serial flash, CDMA 800M/1900M/GPS RF Transceiver, and RF Front
end circuit.
The device includes one dual band antenna（CDMA800&CDMA1900）and one dedicate
GPS antenna.