User manual

7 Chapter 1 General Information
• Accuisition
5_6
• Sensitivity
7
Tracking -158 dBm
Acquisition & Reacquisition -148 dBm
Cold Starts -142 dBm
1.6.3 GSM/GPRS Specifications of Siemens MC55
module
Tri-band MC55 EGSM900 /GSM1800/1900
GPRS multi-slot Class 10
GPRS mobile station Class B
Download: Max. 85.6 Kbps
Uplink: Max. 42.8 Kbps
Coding Scheme: CS1-4
Internet service: TCP, UDP, HTTP, FTP, SMTP, POP3
1.6.4 Programmable Digital I/O
Digit GPIO: 5 In / 5 Out
VIH: 2.64~3.3V (Input logic 1)
VIL: 0~0.66V (Input logic 0)
VOH: 3.2~3.3V (Output logic 1)
VOL: 0~0.4V (Output logic 0)
Maximum DC current: 5mA
1.6.5 Enviromental Specifications
Operating Temperature:
Storage Temperature:
GPS_Mode_(U
BX-CFG_Msg)
Fast
Acquisition
Mode
Normal
Mode
High
Sensitivity
Mode
Auto Mode
Cold Start 34s 36s 41s 34s
Warm Start 33s N/A N/A N/A
Hot Start <3.5s N/A N/A N/A
Reacquisition <1s N/A N/A N/A