Silent Knight SK-FSL — single-mode fiber-optic plug-in module for the SK-NIC network interface card.
This module does not carry SLC traffic. It converts one channel of the SK-NIC ARCNET panel-to-panel network onto single-mode fiber, so that networked Silent Knight panels in separate buildings can share one communications and annunciation link without a copper run between them. Each module handles one transmit and receive fiber pathway.
- Single-mode fiber, LC-style connectors, 9/125 µm cable
- Maximum attenuation 30 dB
- Standby current 0.079 A; alarm current 0.079 A
- Up to two fiber loop modules per SK-NIC, and multi-mode and single-mode modules may be mixed on the same card
- Supports a fiber network of up to 17 panels; fiber and copper segments may be mixed
- Compatible panels: 6820, 6820EVS, 6808 and 6700
- Certified to UL 864 10th Edition and UL 2572; 32°F to 120°F, 0 to 93 % RH noncondensing
The sibling is the SK-FML, the multi-mode module: ST-style connectors, 62.5/125 µm cable, 8 dB maximum attenuation and 0.053 A. The two are not interchangeable — the connector style and the installed fiber plant decide which one fits, so match the module to the cable already pulled.
Documents
FAQ
What does the SK-FSL plug into?
The SK-NIC network interface card. Up to two fiber loop modules can be added to one SK-NIC, and single-mode SK-FSL and multi-mode SK-FML modules may be combined on the same card.
Which panels can be linked?
The 6820, 6820EVS, 6808 and 6700. The SK-NIC provides a common communications link for these panels, but they cannot be linked together for peer-to-peer networking.
What fiber cable does it use?
Single-mode 9/125 micron cable with LC-style connectors, 30 dB maximum attenuation. For 62.5/125 micron multi-mode cable, use the SK-FML (ST connectors, 8 dB).
How many panels can share the link?
Up to 17 panels, with one designated panel acting as the communicator for all of them.
