• Silver-colored arista H-D400-4Q100-1M sfp+ transceiver modules with blue handles and metallic connectors for 400g active DAC
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Arista

Arista QSFP-40G-LRL4-Arista | 40G QSFP+ Transceiver, Single-Mode LC, 1km (LRL4)

QSFP-40G-LRL4-Arista

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Description

This 40GBASE-LRL4 QSFP+ transceiver is built for 40GbE links over duplex single-mode fibre with LC connectors. It suits data centre and campus runs of up to 1km, and is a practical option when migrating existing duplex single-mode cabling from 10G to 40G.

The module uses four CWDM lanes in the 1310nm window (1271, 1291, 1311 and 1331nm) over SMF G.652 fibre. Transmit power is -7 to +2.3 dBm per lane and receive power is -11.5 to +2.3 dBm per lane. Maximum power consumption is 3.5W, drawn from the host QSFP+ port. Compared with the QSFP-40G-LR4 (10km) and QSFP-40G-UNIV (500m), the LRL4 sits in the middle for reach at up to 1km.

It is designed for Arista switches with 40G QSFP+ ports and is optically interoperable with 40GBASE-LR4 modules up to 1km, so it can be paired with an LR4 module at the far end of a link of that length.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Optically interoperable with 40GBASE-LR4 modules up to 1km
- Duplex single-mode LC connectivity for 40GbE links
- Supports migration of 40G links over existing duplex single-mode fibre
- Four-lane CWDM design in the 1310nm window
- Low maximum power draw of 3.5W per module
- Designed for Arista switching platforms with 40G QSFP+ ports

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- PHY type: 40GBASE-LRL4
- Form factor: QSFP+
- Connector: LC (duplex)
- Fibre type: single-mode, SMF G.652
- Wavelength: CWDM 4-lane, 1271/1291/1311/1331nm (1310nm window)
- Maximum reach: 1km over duplex single-mode fibre
- Tx power: -7 to +2.3 dBm per lane
- Rx power: -11.5 to +2.3 dBm per lane
- Maximum power consumption: 3.5W
- Optical interoperability: 40GBASE-LR4 up to 1km
- Dimensions (H x W x D): 13.5 x 18.4 x 72.4 mm
- Operating case temperature: 0 to 70 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 10,000 ft
- Minimum cabling distance: 2m
- Standards: IEEE 802.3 Ethernet, QSFP+ SFF-8449 and SFF-8636, GR-20-CORE, GR-326-CORE, GR-1435-CORE

FAQs

Q: What is the maximum reach of this transceiver?
A: It supports links of up to 1km over duplex single-mode fibre with LC connectors. For longer runs, the QSFP-40G-LR4 reaches 10km.

Q: Can it link to a 40GBASE-LR4 module at the other end?
A: Yes. It is optically interoperable with 40GBASE-LR4 modules for link distances up to 1km.

Q: What fibre and connector does it use?
A: It uses duplex single-mode fibre (SMF G.652) with an LC connector.

Q: How much power does it draw?
A: The maximum power consumption is 3.5W, supplied by the host switch QSFP+ port.

Q: How does it differ from the QSFP-40G-UNIV?
A: The LRL4 reaches up to 1km over duplex single-mode fibre, while the QSFP-40G-UNIV is specified for 500m over single-mode fibre.

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