Download Wavecom G2 User guide

Chapter 1 – Product Description and Specifications
9-Pin Fem-D Sub Serial Connector
The following table explains the pin functions.
DE9
Pins
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Note:
DE9 Pin Assignment
RS232 Signals
RS422 Full
Signal
DCE
Duplex Signals
Direction
Data Carrier Detected
RxDOut
(DCD)
RXD
RxD+
Out
TXD
TxD+
In
Data Terminal Ready (DTR) TxDIn
Ground
Ground
N/A
Ready
To
Send
Out – RS232
Data Set Ready (DSR)
(RTS-)
In – RS422
Ready To Send
Ready To Send (RTS)
In
+ (RTS+)
Clear To Send +
Clear To Send (CTS)
Out
(CTS+)
Clear To Send Ring Indicator (RI)
Out
(CTS-)
The DSR signal on pin 6 is always asserted by the modem.
Female Connector
4-Position DIP Switch
Note: Not supported on H5 models.
Switch
Position
Position 1
Up/On
Down/Off
Description
Off
DTR Reset Disabled
Not supported on H5 models
Position 1
On
DTR Reset Enabled
Not supported on H5 models
Positions 2-4
Only valid for serial builds
Position 2
Off
No TXD Termination
Position 2
On
TXD Diff Pair Terminated
Position 3
Off
No RTS Termination
Position 3
On
RTS Diff Pair Terminated
Position 4
Off
RS232 Mode
Position 4
On
RS422 Mode
Note: Positions 2 and 3 should only be used in RS422 Mode. Enabling TXD/RTS termination may be required to
avoid errors at high bit rates or long cable lengths. Multi-Tech Systems tested the cable up to 1,000 feet ,
but the maximum may be more with termination enabled and lower data rates.
MultiModem Cell User Guide
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