Cisco 1G Dwdm SFP Transceiver 1531.90NM Smf

Cisco 1G Dwdm SFP Transceiver 1531.90NM Smf

Cisco-branded SFP / SFP+ / SFP28 / QSFP+ / QSFP28 transceiver — fiber or DAC copper optic for Cisco Catalyst, Nexus, Router, ASA, UCS deployments.

Specifications

• Part Number: DWDM-SFP-3190
• Brand: Cisco
• Form Factor: SFP (1G) / SFP+ (10G) / SFP28 (25G) / QSFP+ (40G) / QSFP28 (100G) / QSFP-DD (200/400G) — see PN
• Optic Class: SFP Transceiver
• Speed: 1G
• Wavelength: 850nm (SR/MMF) / 1310nm (LR/SMF) / 1550nm (ER/ZR/SMF)
• Connector: LC duplex (most) / MPO (parallel-fiber QSFP) / RJ45 (BASE-T 1G/10G variants)

Compatibility

Cisco transceivers are firmware-keyed — third-party SFPs typically trigger 'unsupported transceiver' warnings (override with `service unsupported-transceiver`). For production, deploy Cisco-original.

• Catalyst 9300/9200 SFP+: 10G uplinks; campus access SFP 1G
• Catalyst 9400/9500/9600 supervisor uplinks: 40G/100G aggregation
• Nexus 9300/9500 ToR/spine: 10G/25G/40G/100G fabric
• UCS Fabric Interconnect (FI 6400 / 6500): 10G/25G/40G/100G UCS server uplinks
• ASR 1001-X / ISR 4000 WAN edge: 1G/10G/100G uplink slots
• ASA / Firepower: 1G/10G/40G fabric ports for high-throughput inspection

Use Cases

Switch uplinks, ToR-leaf-spine fabric, UCS server NIC ports, WAN edge router uplinks, SAN-extension over IP. SR/MMF for in-rack short hops. LR/SMF for cross-datacenter / cross-MDF. ZR/SMF for long-haul (80km+). DAC copper for cheapest in-rack 10G/25G/100G direct attach (no transceiver pair needed). AOC for medium-range (5-30m).

Ships worldwide from ICD, Cairo, Egypt. All parts are tested, inspected, and backed by ICD's quality guarantee.