User's Manual

New Product Requirement
Asiatelco Technologies Co. Proprietary/Confidential
3 Hardware Requirements
3.1 Basic Hardware Requirements
Items Requirement
Baseband Chipset VIA CBP8.2C/CBP8.2D
RF Transceiver FCI7790
Memory Serial Flash 256Mb
PSRAM 128Mb/6 4 M b (optional)
Air Interface CDMA 2000 1x, GPS
Frequency CDMA2000 1x: 800MHz,1900MHz
Antenna Internal Antenna(800M&1900M)
GPS Antenna Dedicate high performance ceramic antenna
UIM requirement No-UIM mode, UIM card connector optional
Interface UART TX
UART RX
12V DC Input（1A current）
Relay Drive (12V Output ,500mA current)
GPIO1
GPIO2
Battery Monitor
internal analog input scaled (Optional)
Build in battery manager
Required
Dedicate Timers
No
Watchdog
Required(Dedicate Watchdog is Optional)
Motion Detect
Optional（GPS/Sensor）
LED
2 LED required
2 LEDs(one is RED，one is Green)
Battery
Build in battery（80MAH Lion）
Working Time
4hours
Power switch
No
Power Cable color
8 colors
Power Cable connector type
8 pin
Power Consumption
< 5Watts
The MC891G provides support for specialized hardware features through extended AT
commands. The features supported include the following.
GPS
The major functionality of the GPS module is to compute the correlation results between the
incoming signal and the selected PRN code based on certain Carrier Doppler Frequency, Code
Doppler Frequency, code phase, carrier phase, and the particular satellite the module is
tracking or acquiring.
GPIO