Rs 232 Interface (V.28) - OneAccess ONE100 Installation Manual

4.6

RS 232 Interface (V.28)

4.6.1 Characteristics
An extension board provides 2 RS 232 access.
The ports are the following characteristics:
•
Synchronous mode, contra-directional, single clock, DCE or DTE mode is
supported (configuration with jumpers),
•
Asynchronous mode (< 115 kbits/s),
•
Electrical Interface V.28,
•
Signals managed (8): 102, 103, 104, 105 (RTS), 106, 108 (RTS), 109 (CD),
115.
4.6.2 Connector Pinout
RJ45 Connector:
4.6.3 RS 232 Configuration
Each RS 232 interface can be separately configured in DTE or DCE mode when
using the synchronous mode:
DCE
When using the asynchronous mode, the jumper connection is not relevant.
28
Pin
1
2
3
4
PORT 0
X2
1
DCE_DTE
X2
1
DTE
DCE_DTE
ONE100 - Installation Manual
Signal
115 / RXC
105 / DPE
104 / RD
109 / DS
PORT 1
X1
1
DCE_DTE
X1
1
DCE_DTE
Pin Signal
5 103 / SD
6 108 / ETDP
7 102 / GND
8 106 / PAE