
1)Transmission function of PC FaxModem transfers an image data to the remote Fax machine by using Class 1 command
2)Class 1 receiving detects ringing from the remote Fax machine and informs ringing detection to the Host PC, and then, Fax machine receives an image data from the remote Fax machine and transfers received image data to the Host PC by using Class 1 command
*
•Packetized data flow.
•Data=MFPL Command/Responce, TIA/AT Command/Responce
•Designates "UNIT ID=FaxModem"
•Contents becomes MFPL and TIA/AT command
example
Packet lnd Unit ID Length Contents
*Example: "MFP Device Driver" processing (FAX driver with AP)
•Resources assurance of FaxModem by running AP (MFPL)
•Prepares the encoded data
•Environment setting by using TIA/AT Command
•Data transmission by using TIA/AT Command
•Resources release of FaxModem according to the communication end (MFPL)
Note: Packetize with
(Receive DMA)
Buffer Memory (Unpacketize)
Class 1 Control
T30 (PSTN), Modem Control
(Fig. 4)40672201TX Rev.4 |