Altec AL7020S Series Designer’s guide Designer's Manual

32, Altec AL7020S Series Designer’s guide AL7020S, AL7024S Designer’s Guide Doc. No. DG_7024E Altec Electronic AG Seite 32 / 32 8 8 . . A A P P P P E E N N D D I I X X A A 8.1 REFERENCE DOCUMENTS GSM ETSI recommendations for Phase I and Phase II. Specification Reference Title GSM9…

5, AL7020S, AL7024S Designer’s Guide Doc. No. DG_7024E Altec Electronic AG Seite 5 / 32 1 1 . . I I N N T T R R O O D D U U C C T T I I O O N N 1.1 Models Description Models Operating Bands Interface Connectors Interfaces / Power AL7020S GSM 900/1800 MHz • DIL-64 Header…

8, AL7020S, AL7024S Designer’s Guide Doc. No. DG_7024E Altec Electronic AG Seite 8 / 32 3 3 . . H H A A R R D D W W A A R R E E I I N N T T E E R R F F A A C C E E 3.1 Interface Signals The Socket Modem pin assignments with DTE serial TTL interface, SIM Card and Analog In…

19, AL7020S, AL7024S Designer’s Guide Doc. No. DG_7024E Altec Electronic AG Seite 19 / 32 3.7 External SIM Card Interface (-ES Option) 4 signals exist: • SIMVCC: SIM power supply. • SIMRST: reset. • SIMCLK: clock. • SIMDATA : I/O port. The SIM interface con…

25, AL7020S, AL7024S Designer’s Guide Doc. No. DG_7024E Altec Electronic AG Seite 25 / 32 5 5 . . D D E E S S I I G G N N G G U U I I D D E E L L I I N N E E S S Good engineering practices must be adhered to when designing a printed circuit board (PCB) contai…