GSM900-FFC RF Solutions, GSM900-FFC Datasheet - Page 26
![FLAT CABLE FOR GSM900](/photos/14/2/140232/gsm900-ffc_sml.jpg)
GSM900-FFC
Manufacturer Part Number
GSM900-FFC
Description
FLAT CABLE FOR GSM900
Manufacturer
RF Solutions
Datasheet
1.GSM900-FFC.pdf
(29 pages)
Specifications of GSM900-FFC
Accessory Type
Cable
For Use With/related Products
GSM900
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Product Description
Huawei GTM900 GSM/GPRS Wireless Module
5.3 Software Upgrade of GTM900
5.4 Data Services of GTM900
5.5 Services Presentation Diagram of GTM900
II. Powering down GTM900 in emergencies
Through AT commands, the external CPU powers off GTM900 directly.
GTM900 supports software upgrade. You may upgrade the software of GTM900 over
the serial interface. For detailed operations, see the operation manual.
The data services provided by GTM900 are transmitted over the serial interface. See
Figure 5-2 for the network access of GTM900.
Figure 5-2 Data services of GTM900
For the downlink data,
For the uplink data, the process is similar. However, when providing data services,
GTM900 does not process other AT commands delivered by external equipment.
See Figure 5-3 for the services presentation diagram of GTM900.
PC
GTM900 transmits the data received from the network to the external CPU over
the serial interface.
The CPU then forwards the data to external data terminals, for example,
computers.
UL data at 9.6 kbps
DL data at 38.4 kbps
External
Interface
board
CPU
Huawei Technologies Proprietary
interface
Serial
5-2
G
M
T
9
0
0
Chapter 5 Operating Process