Interfaces, Displays and Operator Controls
4.2.3Port LEDs
The port LEDs indicate the operating states of the individual ports of the OSM/ESM. On the OSM/ESM variants with digital inputs, the state of the inputs is also indicated by the port LEDs. To allow this, the OSMs/ESMs have an additional display mode. The display mode of the port LEDs can be changed using the Select/Set button on the front panel of the OSM/ESM allowing all operating states to be displayed. The current display mode is signaled by the display mode LEDs.
Display mode | Meaning | |||
Port Status |
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| Port LED | |
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| - Not lit: No valid connection to the port | |
Display |
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| (for example station turned off or cable | |
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| not connected) | |
3 | 2 | 1 | - Lit green: Valid connection | |
- Flashes green (once per period): Port | ||||
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LED off | LED off | LED off | switched to standby | |
- Flashes green (twice per period): Port is | ||||
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| segmented | |
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| - Flashes green (three times per period): | |
Note |
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| Port is turned off | |
LED 3 exists only on devices with digital | - Flashes green (four times per period): | |||
inputs. |
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| Port is mirrored | |
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| - Flashes/lit yellow: Data reception on this | |
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| port | |
100 Mbps |
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| Port LED | |
Display |
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| - Lit green: Port operating at 100 Mbps | |
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| - Not lit: Port operating at 10 Mbps | ||
3 | 2 | 1 |
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LED off | LED off | LED on |
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Note |
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LED 3 exists only on devices with digital |
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inputs. |
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58 | Industrial Ethernet OSM/ESM |