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Product Technical Specification & Customer Design Guidelines
32
Proprietary and Confidential - Contents subject to change
2400089
be characterized by the
. Note that throughput will be reduced and may vary
significantly based on
size, host interface, and
revision. Sierra
Wireless does not recommend using this device in USB full speed mode.
User-developed drivers
If you will be developing your own USB drivers, see
Driver Developer’s Guide (Doc# 2130634)
.
SIM interface
The module supports one SIM (Subscriber Identity Module) (1.8 V or 3 V). The
SIM holds account information, allowing users to use their account on multiple
devices.
The
) provide the connections necessary to interface to a SIM
socket located on the host device as shown in
. Voltage
levels over this interface comply with 3GPP standards.
Table 4-4: SIM interface signal
Name
Pin
Description
SIM contact
number
1
Notes
USIM_PWR
8
SIM voltage
1
Power supply for SIM
USIM_DATA
10
Data I/O
7
Bi-directional SIM data line
USIM_CLK
12
Serial clock
3
Serial clock for SIM data
USIM_RST
14
Reset
2
Active low SIM reset
USIM_GND
Ground
5
Ground reference
USIM_GND is common to module ground
1. See
for SIM card contacts.