Gemalto M2M GmbH ALS3-USR3 사용자 설명서

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 ALS3-US R3 Hardware Interface Overview
3.5 UICC/SIM/USIM Interface
27
ALS3-USR3_HIO_v03.009
2015-08-05
Confidential / Preliminary
Page 25 of 41
Figure 5:  First UICC/SIM/USIM interface
The total cable length between the SMT application interface pads on ALS3-US R3 and the 
pads of the external SIM card holder must not exceed 100mm in order to meet the specifica-
tions of 3GPP TS 51.010-1 and to satisfy the requirements of EMC compliance.
To avoid possible cross-talk from the CCCLKx signal to the CCIOx signal be careful that both 
lines are not placed closely next to each other. A useful approach is using the GND line to 
shield the CCIOx line from the CCCLKx line.
 shows how to connect a SIM card holder to the first SIM interface. With the sec-
ond SIM interface some internally integrated components on the SIM circuit will have to be ex-
ternally integrated as shown for the second SIM interface in 
Figure 6:  Second UICC/SIM/USIM interface
Module
open: Card removed
closed: Card inserted
CCRST1
CCVCC1
CCIO1
CCCLK1
CCIN1
SIM /
UICC
1nF
220nF
S
M
T a
pplicat
ion 
in
te
rf
a
c
e
GND
Module
Open: Card removed
Closed: Card inserted
CCRST2
CCVCC2
CCIO2
CCCLK2
CCIN2
SIM /
UICC
1nF
220nF
SMT
 appl
ic
at
ion 
interf
a
c
e
GND
2k2
100pF*
VEXT
22k*
10k
* Should be placed 
as close as possible 
to SMT application 
interface