User's Manual

HC864-AUTO Hardware User Guide
1vv0300946 Rev.4 – 2012-12-27
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 15 of 77
3. HC864-AUTO Module Connections
3.1. PIN-OUT
HC864-AUTO uses an 80 pin Molex p.n. 53949-0878 male connector for the connections
with the external applications. This connector matches the 54150-0878 models.
Pin Signal I/O Function
Internal
Pull up
Type
HC864-AUTO
Power Supply
1
VBATT - Main power supply Power
2
VBATT - Main power supply Power
3
VBATT - Main power supply Power
4
VBATT - Main power supply Power
5
GND - Ground Power
6
GND - Ground Power
7
GND - Ground Power
SIM Card Interface
18
1
SIMVCC - External SIM signal – Power supply for the SIM 1.8 / 3V
19
SIMRST O External SIM signal – Reset 1.8 / 3V
20
SIMIO I/O External SIM signal - Data I/O 1.8 / 3V
21
SIMIN I External SIM signal - Presence (active low) CMOS 1.8V
22
SIMCLK O External SIM signal – Clock 1.8 / 3V
Trace
23
RX_TRACE I RX Data for debug monitor CMOS 2.6V
24
TX_TRACE O TX Data for debug monitor CMOS 2.6V
Prog. / Data + Hw Flow Control
25
C103/TXD I Serial data input (TXD) from DTE CMOS 2.6V
26
C104/RXD O Serial data output to DTE CMOS 2.6V
27
C107/DSR O Output for Data set ready signal (DSR) to DTE CMOS 2.6V
28
C106/CTS O Output for Clear to send signal (CTS) to DTE CMOS 2.6V
29
C108/DTR I
Input for Data terminal ready signal (DTR) from
DTE
CMOS 2.6V
30
C125/RING O Output for Ring indicator signal (RI) to DTE CMOS 2.6V
31
C105/RTS I Input for Request to send signal (RTS) from DTE CMOS 2.6V
32
C109/DCD O Output for Data carrier detect signal (DCD) to DTE CMOS 2.6V
Miscellaneous Functions
35
USB_ID AI
Analog input used to sense whether a
peripheral device is connected, and
determine the peripheral type, a host
Analog
1
On this line a maximum of 10nF bypass capacitor is allowed