Specifications

CINTERION
®
BGS12 Hardware Interface Description
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BGS12 HID_V00.915
Confidential / Released
2019
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01
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For output and input states see Table 7
Figure 18: ASC1 startup behavior
3.10 Serial Interface ASC2
BGS12 offers a 4-wire unbalanced, asynchronous modem interface ASC2 conforming to ITU-
T V.24 protocol DCE signalling. The electrical characteristics do not comply with ITUT V.28.
The electrical level of the ASC2 interface is set to 2.8V. For electrical characteristics please
refer to Table 20.
BGS12 is designed for use as a DCE. Based on the conventions for DCE-DTE connections it
communicates with the customer application (DTE) using the following signals:
•
Port TXD @ application sends data to module’s TXD2 signal line
•
Port RXD @ application receives data from the module’s RXD2 signal line
Figure 19: Serial interface ASC2