Multi-Tech Systems 92U03G23720 ユーザーズマニュアル
Chapter 4 – Interfaces
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide
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Chapter 4 – Interfaces
This chapter describes the ModemModule interfaces.
·
Flashing LED
·
SIM Interface
·
RF Interface
·
DTE/DCE Interface Rates
Flashing LED
The flashing LED signal is used to indicate the working mode of the ModemModule.
LED and ModemModule Status
Signal
ModemModule Status
OFF
Download mode or switched OFF>
Continuously lit
Continuously lit
Switched ON (not registered on the network)
ON
Flashing
Switched ON (registered on the network)
SIM Interface
The internal SIM interface of the SocketModule supports 3V SIMs only.
Note:
This interface is fully compliant with GSM 11.11 recommendations concerning the SIM functionality.
Five Signals Are Available
SIMVCC: SIM power supply.
SIMRST: reset.
SIMCLK: clock.
SIMDATA: I/O port.
SIMPRES1 SIM card detect.
SIMRST: reset.
SIMCLK: clock.
SIMDATA: I/O port.
SIMPRES1 SIM card detect.