Altec GSM SOCKET AL7020S - Manual (Page 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
Interface are shown in Figure 3-1 and are listed in Table 3-1.
3.2 Signal Description
The Socket Modem interface signals are described in Table 3-3.
The digital electrical characteristics are listed in Table 3-4.
The analog electrical characteristics are listed in Table 3-5.