Beckhoff EK15 Series Documentation page 57

Further information can be found in the following documents:
• ITU recommendation ITU-T G.651 - G.655
• EN 50173:2002
• EN 60793-2
Connecting and releasing the optical fiber cable at the junction
Risk of damage to the cable!
To disconnect the optical fiber cable always pull the connector to release the locking mechanism - never
pull the optical fiber cable itself.
Crossover cables
Not that crossover cables may have to be used for connecting the EK1521, EK1521-0010 with the
EK1501/ EK1501-0010.
Practical tip:
The infrared light emission can be made visible via a digital or smartphone camera at the junction or
at the coupler (see figure). Avoid 'light meeting light' when connecting the optical fiber cable (Tx →
Tx). In this case no connection can be established, and crossover cables must be used (Tx → Rx).
Figure: Visualization of infrared light at the SC duplex connector
EK1122, EK15xx
NOTE
Version: 3.4
Commissioning/application notes
57