Gemalto M2M GmbH PDS6 Manuel D’Utilisation
PDS6_HIO_v02.800
Confidential / Preliminary
2014-10-27
Cinterion
®
PDS6 Hardware Interface Overview
2.1 Application Interface
Page 11 of 35
2.1.2
Serial Interface ASC0
PDS6 offers an 8-wire unbalanced, asynchronous modem interface ASC0 con- forming to
ITU-T V.24 protocol DCE signalling. The electrical characteristics do not comply with ITU-T
V.28. The significant levels are 0V (for low data bit or active state) and 1.8V (for high data bit or
inactive state).
ITU-T V.24 protocol DCE signalling. The electrical characteristics do not comply with ITU-T
V.28. The significant levels are 0V (for low data bit or active state) and 1.8V (for high data bit or
inactive state).
PDS6 is designed for use as a DCE. Based on the conventions for DCE-DTE con- nections it
communicates with the customer application (DTE) using the following signals:
• Port TXD @ application sends data to the module’s TXD0 signal line
• Port RXD @ application receives data from the module’s RXD0 signal line
communicates with the customer application (DTE) using the following signals:
• Port TXD @ application sends data to the module’s TXD0 signal line
• Port RXD @ application receives data from the module’s RXD0 signal line
Features:
Figure 3: Serial interface ASC0
• Includes the data lines TXD0 and RXD0, the status lines RTS0 and CTS0 and, in addition,
the modem control lines DTR0, DSR0, DCD0 and RING0.
• ASC0 is designed for controlling GSM/UMTS voice calls, transferring data and for control-
ling the module with AT commands.
• Full multiplexing capability allows the interface to be partitioned into virtual channels.
• The RING0 signal serves to indicate incoming calls and other types of URCs (Unsolicited
• The RING0 signal serves to indicate incoming calls and other types of URCs (Unsolicited
Result Code). It can also be used to send pulses to the host application, for example to
wake up the application from power saving state.
wake up the application from power saving state.
• By default configured to the setting 8 data bits, no parity and 1 stop bit.
• ASC0 can be operated at fixed bit rates from 1200bps up to 921600bps.
• Autobauding supports bit rates from 1200bps up to 230400bps.
• Supports RTS0/CTS0 hardware flow control. The hardware hand shake line RTS0 has an
• ASC0 can be operated at fixed bit rates from 1200bps up to 921600bps.
• Autobauding supports bit rates from 1200bps up to 230400bps.
• Supports RTS0/CTS0 hardware flow control. The hardware hand shake line RTS0 has an
internal pull down resistor causing a low level signal, if the line is not used and open.
Although hardware flow control is recommended, this allows communication by using only
RXD and TXD lines.
Although hardware flow control is recommended, this allows communication by using only
RXD and TXD lines.
• Wake up from SLEEP mode by RTS0 activation (high to low transition).