Enfora Enabler III-G
Modem Integration Guide
SIM_CLK
<25.4 cm (10 in)
SIM_I/O
SIM_RST
SIM_VDD
SIM_DTC
Remote SIM
Enabler III-G
module
SIM
Interface
Figure 16 - Remote SIM Interface
Pin Name
Pin Number
Signal Direction
Description
SIM_VDD
76 O
SIM
VDD
SIM_CLK
78
O
Card Reference Clock
SIM_RST
80 O
Card
Reset
SIM_I/O
82
I/O
Card I/O Data
SIMDTC
84 I
Card
detect
The module provides the regulated supply voltage for the SIM-card and the circuitry to detect the insertion
or extraction of the SIM-Card in or from the mobile.
When the SIM-card is inserted, a mechanical contact connected on the module terminal is tripped and
after debouncing, an interrupt is generated. The SIM-card presence detection logic must be active even
when the system is in idle mode. Thus, the debouncing logic is based on the 32 kHz low-activity clock.
GSM0308PB001
57
Version DRAFT – 2/9/2007