CEP Terminals CT63 NG, Руководство пользователя

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4.4.1 Serial Data
The modem supports the standard data character format of

Programmable baud rate (300bps to 230,400bps).

Auto-configuration mode with auto-baud (1,200bps to 230,400bps).

Multiplex ability according to GSM 07.10 Multiplexer Protocol.
4.5 Mini USB Connector
The modem supports a standard USB 2.0 Full Speed slave interface to receive AT-commands as well as
data transmissions.
Drivers for several operating systems (e.g. Windows Vista, Windows XP or Linux) are available for
download from the CEP AG website (for registered users only).
Figure 6: Mini USB Type A/B connector
5 Operation
5.1 Switch ON the modem
There are two ways to switch on the modem, once power is applied:

assert TO_IN to high level for > 1s

activate the RS232 control line DTR for >0.2s
The modem is fully operational after 4 seconds. Logging onto a network may take longer than this and
is outside the control of the modem. The modem can be configured to start up at the time power is
applied by permanently tying power connector signals TO_IN (pin 4) and VCC (pin 1) together.
DTR must be cycled from low to high.
Although this will not be an issue in almost all typical applications of the modem, there are a few cases
in which the modem might not recognize the power up signal. This is no failure of the modem itself, the
same would apply to almost any electronic device that provides a separate “power on” or “reset”
signal.
Possible cases are the following: