... . Broadcast storm protection5. Relay output warning for power failure and port break alarm6. Redundant 24VDC power input(12V~36VDC)7. -40 ... or force work mode, and support MDI/MDI-X connectionFiber Port: 100BaseFX ports (SC/ST connector, optional)Multi-mode: 2,5Km ... : FCC,CE, RoHS approvals Unmanaged Industrial Optical Ethernet Switch 5 port ethernet switch (Wide Temperature -40C to 75C) CK-if 80 ...