Signaling Contact - Siemens SCALANCE X308-2M Operating Instructions Manual

Description of the device
4.3 Interfaces and signaling contact of the switches
Transmission medium
Data is transmitted over single mode FOC. The wavelength is 1310 nm or 1550 nm.
The core diameter of the single mode FO cable is 9 or 10 µm; the light source is a laser
diode. To transmit a signal, only one mode (light beam) is used greatly reducing dispersion.
As a result, the maximum range of single mode FOC is greater than that of multimode FOC.
Transmission range
The maximum transmission distance (segment length) is 120 km for 1000Base-LX
transmission.
IE Switches X-300 connector technology
SC duplex female connectors are used.
Connector technology of the IE Switch X-300EEC
FC duplex female connectors with the following characteristics are used:
● Maximum range: up to 3 km
● Wavelength: 1310 nm
● Transmission mode: Multimode
● Standard: 100Base-FX
4.3.3

Signaling contact

The signaling contact (relay contact) is a floating switch with which error/fault states can be
signaled by breaking the contact.
Error indication
● The signaling by the signaling contact is synchronized with the fault LED, in other words,
● If an internal fault occurs, the fault LED lights up and the signaling contact opens.
● The connection or disconnection of a communication node on an unmonitored port does
● The signaling contact remains activated until the error/fault is eliminated or until the
92
all errors displayed by this LED (freely configurable) are also signaled on the signaling
contact.
not lead to an error message.
current status is entered in the fault mask as the new desired status.
Operating Instructions, 02/2012, A5E01113043-12
SCALANCE X-300