Swap the AT-100G-DWDMCh56 in for the Allied Telesis part of the same designation and the link keeps its two defining parameters: the 100G QSFP28 interface toward the switch and the Ch56 wavelength — 1502.72nm — toward the mux. Nothing in the channel plan has to be re-engineered; the replacement takes over the slot the original held, over the same single-mode fiber and duplex LC cabling.
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Form Factor: QSFP28
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Data Rate: 100G
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ITU Channel: Ch56
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Wavelength: 1502.72nm
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Fiber Type: SMF
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Connector: Duplex LC
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OEM Equivalent: AT-100G-DWDMCh56
Compatibility: Documented OEM compatibility (Allied Telesis published compatibility documentation): this module is accepted in 100G QSFP28 ports on the SwitchBlade x908 GEN2, x560 Series, and x950 Series. Confirm your exact chassis, line card, and OS release against the Allied Telesis matrix before deployment.
Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.
DDM/DOM diagnostics carry over as well, so whatever monitoring watched the old unit keeps working against the new one. Built against the MSA and validated unit by unit before release. Should it ever fail, the GreenLights4Life® Limited Lifetime Replacement Warranty covers the exchange. In-stock items ship same or next business day — contact 10.4@tenfouroptics.com to confirm availability and lead time.
