ABB 1MRK002122-ABr03 Local Communication Module (LDCM)

The optical budget for the 670 series with 64 kbit communication using the C37.94 interface and fiberoptic communication varies based on the wavelength and fiber type. Here's a breakdown:

• Multimode Fiber (Glass 50/125 µm)

• 850 nm

• Minimum output power: -17 dBm

• Minimum receiver sensitivity: -30 dBm

• Optical budget: 13 dB

• Minimum output power: -21 dBm

• Minimum receiver sensitivity: -30 dBm

• Optical budget: 9 dB

• 850 nm

• Multimode Fiber (Glass 62.5/125 µm)

• Single Mode Fiber (Glass 9/125 µm)

• Minimum output power: -3 dBm

• Minimum receiver sensitivity: -29 dBm

• Optical budget: 26 dB

• Minimum output power: -7 dBm

• Minimum receiver sensitivity: -29 dBm

• Optical budget: 22 dB

• 1310 nm

• 1550 nm

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