Bausch Datacom InduBox GSM M4, Installation & Configuration Manual

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5.5 Non isolated DTE Interface
This interface can be used to connect a standard serial device or to configure or debug
the InduBox GSM M4. This interface is accessible via a RJ-45 8-pin connector, is not
galvanically isolated and has all standard V.24 interface lines. A RJ-45 to a standard
female DB-9 connector cable is available.
PIN V.24 Description Direction Level
1 DCD Data Carrier Detect DCE  DTE V.28
2 RXD Receive Data DCE  DTE V.28
3 TXD Transmit Data DTE  DCE V.28
4 DTR Data Terminal Ready DTE  DCE V.28
5 GND Ground - -
6 RI Ring Indicator DCE  DTE V.28
7 RTS Request to Send DTE  DCE V.28
8 CTS Clear to Send DCE

DTE V.28
Power Supply
GSM
module
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SIM
L1
L2
GSM
TXD
RXD
DTR
RI
DCD
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H1
J
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1
J
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JP3 JP6
JP7 JP8
2
4
Meter
Serial Interface
RJ-45 8 contacts
8 ………. 1