Siemens SIMATIC NET - Page 63

Planning/configuring
7.1 Network topologies
Optical link module
Operating Instructions, 01/2020, C79000-G8976-C270-06
63
Configuration 2 (FOC1 < FOC2) , LED display:
1. Situation, no FO cable interruption:
OLM 1
OLM 2
System LED
Lit green
Lit green
CH1/0 LED
Lit yellow
Lit yellow
CH2 LED
Lit yellow
Lit yellow
CH3 LED
Not lit
Not lit
2. Problem, FOC1 interrupted:
OLM 1
OLM 2
System LED
Lit green
Lit green
CH1/0 LED
Lit yellow
Lit yellow
CH2 LED
Lit red
Lit red
CH3 LED
Lit yellow
Lit yellow
3. Problem, FOC2 interrupted:
OLM 1
OLM 2
System LED
Lit green
Lit green
CH1/0 LED
Lit yellow
Lit yellow
CH2 LED
Lit yellow
Lit yellow
CH3 LED
Lit red
Lit red