IpCAS ipEther232 - RS485 2-Wire Solution

Änderungen vorbehalten Stand 09.09.05
ipcas GmbH ipEther232 V11.01 Seite 140 von 150
10.9 RS485 as a 2 wire solution
A closing of the cables with termination-networks is needed at RS485-
connections to force the silencelevel on the bussystem while no datatransmitter is
active. This termination network will be set with the Jumper 6, 7 and 8.
Please take the pin allocation from the chapter Pin allocation
Please take the Jumper configuration from the chapter RS485 Modul
10.10 DCF77 Modul
With this DCF77 Module, the ipNTP with DCF77-
Antenna is the subject of the description.
No adjustment options available.
10.11 GPS / DCF77 Modul
With this GPS / DCF77 Module, the ipNTP with
DCF77- or GPS-Antenna is the subject of the
description.
No adjustment options available.
RX+
TX+
RX-
TX-
R3 390 Ω
R1 390 Ω
R2 220 Ω
VCC
GND
RX+
TX+
RX-
TX-