Application Examples And Reference Circuits; Fig. 8-4 Level Converter; Fig. 8-5 Voltage Supply - Siemens M20 Terminal Technical Description

Siemens Information and Communication Products
8.8

Application examples and reference circuits

The following examples are for reference only and describe one of many possibilities to realise the shown function.
8.8.1 V.24 level converter
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Fig. 8-4 Level converter
Application example for the conversion of M20 (2.8 V) signals to V.24 (+/-12 V) signals.
8.8.2 6 V voltage supply from 12 V source
Fig. 8-5 Voltage supply
Application example for the 6 V voltage supply from a 12 V source.
Note: Voltage supply on connection must NOT rise faster than 3V/msec.
8.8.3 SIM card reader connections
Version 8 dated 15.03.00
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Application notes
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