User's Manual

DE910 Series Hardware User Guide
1vv0301183 Rev.1 – 2015-2-13
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 18 of 70
NOTE:
Almost all pins not in use must be left disconnected. The only exceptions are the following
pins:
PAD Signal
W16
VBATT
N1,J1,B1,E1,
A1,X1,A2,
B2,W2,X2,L3,P3,V3,C3
,H3,L6,P6,S6,V6,C6,H6
,L8,P8,S8,V8,C8,L11,P
11,S11,V11,C11,P14,S1
4,V14,C14,P16,S16,C16
,V19,C19,F19,H19,A20,
B20,W20,X20,A21,B21
,W21,X21,T1,W1
GND
S20
ON_OFF*
B18 RESIN*
A19 USB_D+
If not used should be connected to
a Test Point
A17 USB_D-
If not used should be connected to
a Test Point
A15 VBUS
If not used should be connected to
a Test Point
J21 TXD1
If not used should be connected to
a Test Point
G21 RXD1
If not used should be connected to
a Test Point
E21 RTS1
If the flow control is not used it
should be connected to GND
C21 CTS1
If not used should be connected to
a Test Point
A13 TXD2
If not used should be connected to
a Test Point
A11 RXD2
If not use
d should be connected to
a Test Point
V
1
Main Antenna
C1
ANT_GPS (If supported
by the product)
If the GPS is not used it could be
left unconnected
F6,F8,H8,F11,H11,F14,
H14,F16
Test Point
RTS must be connected to the GND (on the module side) if flow control is not used.
The above pins are also necessary to debug the application incorporating the module.