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Tariff Calculator Duty Estimator-
Relay Protection Calculator
The Inverse Time Over Current (TOC/IDMT) relay trip time calculator calculates the protection trip time according to IEC 60255 and IEEE C37.112-1996 protection curves.
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Swedish Tariff Cost Optical Transmitter QSFP-DD
The STC-QSFPDD-ER4-40KM transceiver from Swedish Telecom is designed for 200Gbps Ethernet links across long-haul distances of up to 40 kilometers. 3cn 200GBASE-ER4 and QSFP-DD MSA standards. Featuring 4-channel LAN-WDM optics and PAM4 signaling, this transceiver delivers. 400G QSFP-DD Transceiver, 400GBASE-DR4, MPO-12,500m parallel. As a. QSFP-DD High-Power (Bright) DCO 400G DWDM Tunable Coherent ＞120km DOM Duplex LC/UPC SMF Optical Transceiver Module for FS Switches - FS. We provide 1G to 400G optics with a vast selection of compatibility and models. Our compatible modules are affordable equivalence to costly OEM brand transceivers. Check the SFP price list and explore how we offer you the best.