Installation and Commissioning SWT 3000 Equipment Manual
Jumper settings for the FOM module
With the FOM it is possible to connect up to two external SWT 3000 via optical fibre to the Power-
Link PLC system (for each transmission direction one fibre).
In the PowerLink system two SWT 3000 can be connected via fibre optic cables (iSWT (A) and
iSWT (B)). The FOM modules are installed in the slots of the PU3f.
The PU3f in the external SWT 3000 is connected with the LAN interface and its serial synchro-
nous interface (SSI) via FOM to the PowerLink. From the point of view of the PowerLink the exter-
nal SWT 3000 is considered like integrated, because the internal LAN of the system is extended
through the fibre optic connection.
H1H9
H8
H4
H5
H7
H6
Tx - Alarm
Rx - Alarm
Programming
interface
FOM
H2
H3
Figure 12: Position of the LED on the FOM
On the FOM no jumper settings are required. The LED indications are described in the following
table.
Table 26: Signification of the alarm LED on the FOM
LED LED-indication when lit
H1 red FPGA not ready
H2 red Tx-alarm. F6 supervisory alarm
H3 red Rx-alarm
H6 yellow MOD-alarm. Modulation alarm, carrier frequency at the optical receiver not detected.
H7 yellow COM-alarm. Communication alarm at the electrical interface.
H5 yellow BUF-alarm. Buffer overflow or under run. Source: Supervisory circuit of FPGA
H4 yellow ILAN high
H8 yellow SFP_LOS. The received optical power is below the receiver sensitivity. Loss of signal
H9 yellow S6 asserted
In case of FOM connection the configuration of the external SWT 3000 is
executed via the PowerLink with the PowerSys program. The service
interface of the PU3f in the external SWT 3000 can not be used.
Page - 24 Edition p3_3_2x 08/09 © SIEMENS AG 2008
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