User's Manual

GE864
GE864GE864
GE864-
--
-QUAD V2 / GE864
QUAD V2 / GE864QUAD V2 / GE864
QUAD V2 / GE864-
--
-DUAL V2 Hardware User Guide
DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide
DUAL V2 Hardware User Guide
1vv0300875 Rev.1 – 2010-03-29
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved. Page 38 of 73
Operating Range
Operating Range Operating Range
Operating Range – Interface levels (2.8V CMOS)
Interface levels (2.8V CMOS) Interface levels (2.8V CMOS)
Interface levels (2.8V CMOS)
Level
LevelLevel
Level Min
MinMin
Min Max
MaxMax
Max
Input high level V
IH
2.1V 3.1V
Input low level V
IL
0V 0.5V
Output high level V
OH
2.2V 3.0V
Output low level V
OL
0V 0.35V
The table below shows the signals of the GE864-QUAD V2 / GE864-DUAL V2 serial
port:
RS232 Pin
RS232 Pin RS232 Pin
RS232 Pin
Number
NumberNumber
Number
Signa
SignaSigna
Signal
ll
l GE864
GE864GE864
GE864-
--
-
QUAD V2 /
QUAD V2 / QUAD V2 /
QUAD V2 /
GE864
GE864GE864
GE864-
--
-
DUAL V2
DUAL V2DUAL V2
DUAL V2
Pad
Pad Pad
Pad
Number
NumberNumber
Number
Name
NameName
Name Usage
UsageUsage
Usage
1
DCD –
dcd_uart
D9 Data Carrier Detect
Output from the GE864-QUAD V2 / GE864-DUAL V2 that
indicates the carrier presence
2
RXD –
tx_uart
H8 Transmit line *see Note
Output transmit line of GE864-QUAD V2 / GE864-DUAL V2
UART
3
TXD –
rx_uart
E7 Receive line *see Note
Input receive of the GE864-QUAD V2 / GE864-DUAL V2
UART
4
DTR –
dtr_uart
B7 Data Terminal Ready
Input to the GE864-QUAD V2 / GE864-DUAL V2 that
controls the DTE READY condition
5
GND A1,F1, H1 L1,
H2, L2, J3,
K3….
Ground
ground
6
DSR –
dsr_uart
E11 Data Set Ready
Output from the GE864-QUAD V2 / GE864-DUAL V2 that
indicates the module is ready
7
RTS –rts_uart
F7 Request to Send
Input to the GE864-QUAD V2 / GE864-DUAL V2 that
controls the Hardware flow control
8
CTS – cts_uart
F6 Clear to Send
Output from the GE864-QUAD V2 / GE864-DUAL V2 that
controls the Hardware flow control
9 RI – ri_uart B6 Ring Indicator
Output from the GE864-QUAD V2 / GE864-DUAL V2 that
indicates the incoming call condition
*
**
*NOTE:
NOTE:NOTE:
NOTE:
According to V.24, RX/TX signal names are referred to the application side, therefore
on the GE864-QUAD V2 / GE864-DUAL V2 side these signal are on the opposite
direction: TXD on the application side will be connected to the receive line (here
named TXD/ rx_uart ) of the GE864-QUAD V2 / GE864-DUAL V2 serial port and
viceversa for RX.