OneAccess ONE100 - RS 232 Interface (V.28)

ONE100 - Installation Manual
28
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:
Pin Signal Pin Signal
1 115 / RXC 5 103 / SD
2 105 / DPE 6 108 / ETDP
3 104 / RD 7 102 / GND
4 109 / DS 8 106 / PAE
4.6.3 RS 232 Configuration
Each RS 232 interface can be separately configured in DTE or DCE mode when
using the synchronous mode:
PORT 0 PORT 1
DCE
DTE
When using the asynchronous mode, the jumper connection is not relevant.
X2
1
DCE_DTE
X1
1
DCE_DTE
X2
1
DCE_DTE
X1
1
DCE_DTE