Usim Card Interface; Overview; Circuit Recommended For The Usim Card Interface - Huawei MU709s-2 Hardware Manual

HUAWEI MU709s-2 HSPA+ Mini PCIe Module
Hardware Guide
Figure 3-5 Recommended circuit of USB interface

3.7 USIM Card Interface

3.7.1 Overview

The MU709s-2 Mini PCIe module provides a USIM card interface complying with the
ISO 7816-3 standard and supports both Class B and Class C USIM cards.
Table 3-5 USIM card interface signals
Pin Pin Name
No.
14 USIM_RESET O
12 USIM_CLK
10 USIM_DATA
8 USIM_PWR

3.7.2 Circuit Recommended for the USIM Card Interface

As the Mini PCIe Adapter is not equipped with a USIM socket, you need to place a
USIM socket on the user interface board.
Figure 3-6 shows the circuit of the USIM card interface.
Issue 02 (2014-09-18)
Pad Description
Type
External USIM reset signal
O External USIM clock signal
I/O External USIM data signal
PO Power source for the
external USIM card
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
Parameter Min.
Typ.(V)
(V)
- - 1.8/3.0
- - 1.8/3.0
- - 1.8/3.0
Class C –0.3 1.8
Class B –0.3 3.0
Max.
(V)
-
-
-
1.98
3.3
17