Standalone Operation Of A Scalance Xcm-100 - Siemens SCALANCE XCM-100 Equipment Manual

Area of application
3.3 Standalone operation of a SCALANCE XCM-100
Cascade
For operation with two coupled media converters, the following values result for the overall
runtimes:
Direction
In both directions
3.3

Standalone operation of a SCALANCE XCM-100

In standalone operation, a SCALANCE XCM-100 connects two partner devices with different
transmission media:
①
②
③
The media converter does not adapt the transmission speed between the connected
partners. Make sure that the transmission speed of the two connected partners is identical.
If the connection status for one of the two ports changes (link up or link down), this change
also takes effect for the other port without significant time delay.
Observe the following rules for Fast Ethernet operating mode:
• Make sure that a suitable SFP transceiver of the type SFP991-1* is installed for the partner
device of the optical connection.
• Make sure that the correct optical cable is used.
• Make sure that autonegotiation is enabled for the partner device of the optical connection.
• The media converter ensures that the Fast Ethernet link is set via autonegotiation. This
applies to partner devices with Fast Ethernet and Gigabit Ethernet.
Observe the following rules for Gigabit Ethernet operating mode:
• Make sure that a suitable SFP transceiver of the type SFP992-1* is installed for the partner
device of the optical connection.
• Make sure that the correct optical cable is used.
• Make sure that the partner device of the electrical connection is Gigabit-capable and the
configuration in the device is not restricted to Fast Ethernet.
12
SCALANCE XCM102
Partner device (optical connection)
Partner device (electrical connection)
Fast Ethernet
1640 ns +/- 120 ns
Equipment Manual, 12/2023, C79000-G8976-C659-03
Gigabit Ethernet
550 ns +/- 40 ns
SCALANCE XCM-100 Media Converter