ModemModule Developer’s Guide
MT3334SMI
12
MT3334SMI Pin-out
The MT3334SMI uses a 20-pin interface to provide an on-board DAA with tip and ring connections,
audio circuit for call-progress monitoring, LED driver for call status annunciation, and serial interface
via TTL level signals.
-RESET
DGND
DCDIND
RXIND
DTRIND
TXIND
24
26
29
30
31
32
DLED
SPKR
AGND
VCC
Audio
64
63
61
DGND
-DTRTTL
-DCDTTL
-CTSTTL
-DSRTTL
-RITTL
-TXDTTL
-RXDTTL
-RTSTTL
41
40
39
38
37
36
35
34
33
Serial TTL
DAA
Tip
Ring
1
2
Figure 1-5. MT3334SMI Pinout
Содержание Modem Module MT3334SMI
Страница 1: ...ModemModule Model MT3334SMI Evaluation Kit Data Fax Socketed Modem Developer s Guide...
Страница 5: ...Chapter 1 Introduction and Description...
Страница 19: ...Chapter 2 AT Commands S Registers and Result Codes...
Страница 31: ...Chapter 3 Class 1 Fax Commands...
Страница 40: ...ModemModule Developer s Guide MT3334SMI 40...
Страница 41: ...Chapter 4 Class 2 Fax Commands...
Страница 50: ...ModemModule Developer s Guide MT3334SMI 50...
Страница 51: ...Chapter 5 Remote Configuration...
Страница 54: ...ModemModule User Guide MT3334SMI 54...
Страница 55: ...Chapter 6 Troubleshooting...
Страница 59: ...Chapter 7 Upgrade Procedure...
Страница 63: ...Appendixes...