Specifications

Electrical Specifications
Rev 8 Apr.14 Proprietary and Confidential - Contents subject to change 31
USB high/full speed throughput performance
This device has been designed to achieve optimal performance and maximum
throughput using USB high speed mode. Although the device may operate with a
full speed host, throughput performance will be on an “as is” basis and needs to
be characterized by the OEM. Note that throughput will be reduced and may vary
significantly based on packet size, host interface, and firmware 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 [4] AirCard/AirPrime USB
Driver Developer’s Guide (Doc# 2130634).
SIM interface
Note: SIM interface
signals support is required.
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 SIM pins (Ta bl e 3 - 4) provide the connections necessary to interface to a SIM
socket located on the host device as shown in Figure 3-3 on page 32. Voltage
levels over this interface comply with 3GPP standards.
Table 3-4: 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 Figure 3-4 on page 32 for SIM card contacts.