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4.2
Standard DTE Interface
Only devices which are conform with the safety
regulations can be connected to the DTE port!
The DinBox PSTN(485) is equipped with a RJ-45 (8x8) connector. This is the serial
interface of the modem.
A Bausch RJ-45 to a standard DB9 (female) cable is delivered with the DinBox
PSTN(485) modem.
EIA/TIA561 pin layout is possible on special request (info in RED).
Pin
Pin
RJ45
RJ45
Bausch
EIA/TIA
561
1
2
2
5
3
6
4
3
5
4
-
-
7
8
8
7
6
-
Output:
from DCE (modem) to DTE (terminal)
Input:
from DTE (terminal) to DCE (modem)
Bausch Datacom NV
DinBox PSTN Reference manual – V1.3
8 CTS
7 RTS
6 RI
5 GND
4 DTR
3 TXD
2 RXD
1 DCD
Pin
V.24/V.28
DB9
CCITT
DIN
1
109
M5
2
104
D2
3
103
D1
4
108/1
S1.1
108/2
S1.2
5
102
E2
6
107
M1
7
105
S2
8
106
M2
9
125
M3
8 RTS
7 CTS
6 TXD
5 RXD
4 GND
3 DTR
2 DCD
1 -
I/O
EIA
DCD
O
Data carrier detect
R D
O
Receive data
T D
I
Transmit data
DTR
I
Data terminal ready
GND
---
Signal ground
DSR
O
Data set ready
RTS
I
Request to send
CTS
O
Clear to send
RI
O
Ring indicator
12
TEXT
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