5.2
Serial DTE Interface
Only devices which are conform with the safety
regulations can be connected to the DTE port!
The DinBox PSTN is equipped with a RJ-45 (8x8) connector. This is the serial interface
of the modem.
A RJ-45 to a standard DB9 (female) cable is delivered with the DinBox GSM/GPRS
modem.
Pin
Pin
DB9
RJ45
1
1
2
2
3
3
4
4
5
5
-
6
7
7
8
8
6
9
Output:
from DCE (modem) to DTE (terminal)
Input:
from DTE (terminal) to DCE (modem)
Bausch Datacom NV
DinBox GSM/GPRS Reference manual – V1.0
8 CTS
7 RTS
6 RI
5 GND
4 DTR
3 TXD
2 RXD
1 DCD
V.24/V.28
CCITT
DIN
EIA
109
M5
DCD
104
D2
R D
103
D1
T D
108/1
S1.1
DTR
108/2
S1.2
102
E2
GND
107
M1
DSR
105
S2
RTS
106
M2
CTS
125
M3
RI
13
I/O
TEXT
O
Data carrier detect
O
Receive data
I
Transmit data
I
Data terminal ready
---
Signal ground
O
Data set ready
I
Request to send
O
Clear to send
O
Ring indicator
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