Siemens 7SR224 Technical Manual page 144

Setting name Range
NONE, ODD, EVEN
COM4 Parity
LIGHT ON, LIGHT OFF
COM4 Line Idle
ON,OFF
COM4 Data Echo
Local, Remote, Local Or
COM4 Mode
Remote
Computer or
Control System
USB or 9 pin male
D connector
Figure 2-3 Communication to Multiple Devices using Fibre-optic Ring Network
©2010 Siemens Protection Devices Limited
Default
EVEN
LIGHT OFF
OFF
Remote
RS232 to Fibre
Optic Converter
RS232 straight
through cable
Tx
Rx
25 pin male
D connector
7SR224 Argus Data Comms
Setting Notes
The parity set on all of the
relays connected to the
same fibre optic system
As Required
must be the same and in
accordance with the master
device.
Sets the idle state of the line
As Required in accordance with master
device
Set to ON when relays are
As Required connected in a ring
configuration.
Remote
Selects port mode
Rx
Tx
62.5/125µm fibre optic with ST
connectors
Chapter 4 Page 10 of 76
Rx
Tx
Rx
Tx