2N ATEUS 501106E, Руководство пользователя

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4. User Manual – Description of Data Functions
4.1. Use of Data Mode
4.1.1. Destination:
•
For data transfer between two computers (second one can have whichever modem)
•
For connecting to Internet
•
High speed data (GPRS) mode can be used for connecting to Internet and similar
applications (model 501107)
4.1.2. Serial interface
Serial interface connector is D-Sub 9 pins, female, see fig. 9. It is connected like a
common external modem. All handshake signals are used in data mode. Bit rate is fixed,
see table bellow. All applications must be set to this speed.
Bit rate and data format on the serial interface:
model Bit rate Data format
501107 (GPRS)
57600
bit/s
All other models
19200
bit/s
8 bits, no parity, 1 stop bit (8N1)
Note: Bit rate of the serial interface is always higher than data rate from/to GSM network.
Please, do not interchange these parameters!
4.1.3. Data Rate in CSD mode
•
Maximum data rate
in this mode is 9600 or 14400 bit/sec. Real value depends on
GSM network, its load and signal quality.
•
Fax transmitting and receiving is technically possible, but it is not supported by the
current version of software yet.
•
High-speed HSCSD mode is not supported.
4.1.4. Data Rate in GPRS mode (only for model 501107)
Multislot Class 8 (or 4+1, i.e. 4 Rx + 1 Tx) is able to use up to 4 timeslots for download and 1
timeslot for upload. Maximum theoretical data rate for download is 57600 bis/sec. Real value
varies during connection, and depends on GSM network, its load and signal quality.
This paragraph is valid only for model 501107. For all other models: GPRS is not supported.
4.1.5. How to combine different modes of serial port
Serial port is used by these applications:
•
GSM program
•
SMS program
•
Your Internet browser, if you choose connection to Internet via GSM gateway
•
Your Z-modem or another program, if you connect GSM gateway to another computer
Basic rule:
All applications listed above are excluding each other. It means if you need to
run another one you must terminate current one first. E.g., if you have SMS program running
permanently, and you wish to connect to Internet via GSM gateway, you must terminate it.
4.1.6. How switching between voice and data modes works
If enabled, data mode has same priority as voice mode. Once occupied by a voice
(phone) connection to GSM network, GSM gateway is not ready to handle data as long
as this call continues, and vice versa: once occupied by a data connection, GSM
gateway is not ready to make a call to GSM as long as this data connection lasts. PSTN
calls are possible during data connection.