Fiber-Optic Module
With the FOM, it is possible to connect up to 2 external SWT 3000 via fiber-optic cable to the PowerLink PLC
system (for each transmission direction one fiber).
In the PowerLink 100 system, 2 SWT 3000 can be connected via fiber-optic cables (iSWT-1 and iSWT-2).
Fiber-optic modules are installed in the slots of the PU4.
In the PowerLink 50 system, the connection of a iSWT 3000 via fiber-optic cables is not supported.
The PU4 in the external SWT 3000 is connected to the iLAN interface and its Serial Synchronous Interface (SSI)
via FOM to PowerLink. From the point of view of the PowerLink, the external SWT 3000 is considered like
integrated, because the internal iLAN of the system is extended through the fiber-optic connection.
[scfomled-220513-01.tif, 1, en_US]
Figure 11-1
Position of the LED on the FOM
(1)
LED H4 to H9: Diagnosis
(2)
LED H3 Rx-Alarm
(3)
LED H2 Tx-Alarm
(4)
Programming Interface
(5)
LED H1: FPGA Readiness
On the FOM, no jumper settings are required. The LED indications are described in the following table:
Table 11-1
Signification of the Alarm LED on the FOM
LED
LED Indication when Lighted
LED Indication with FOS3 for C37.94
H1
red
FPGA not ready
FPGA not ready
H2
red
Tx-Alarm
F6 supervisory alarm
Tx-Alarm
F6 supervisory alarm
H3
red
Rx-Alarm
Rx-Alarm
H4
yellow
ILAN high
LOS alarm (“lose of signal” alarm)
LED on: DCE and DTE not synchronized or
when in sync state, there are at least two
bit errors in consecutive 8 C37.94 frames
11.1
Fiber Optic Module
11.1 Fiber-Optic Module
348
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020