Part Number M402-24LC-SM-MOD-CASS
Polarity 40G to 4 x10G | 100G to 4 x 25G
Fibre Type Singlemode (OS2, 50 / 125)
Fibre Capacity 24
Glass Fibre Corning SMF28®
Rear Connectivity MTP ELITE® fibre connectors (male) x 3
Rear Adaptors MTP® (key up / key down)
Front connectivity LC duplex grade low loss connectors x 24
Front Adaptors LC Ceramic Sleeve
Insertion Loss across cassette < 0.35 dB
Product Warranty 25 year fully covered

Breakout QSFP+ (QSFP28) to multiple SFP+ (SFP28)

One cassette connects to three QSFP+ transceivers

Complete Connect M400 Series cassette modules are designed for use across all areas of today’s data centres and within enterprise networks. As 40G and 100G ports within switches (40G-BASE-PLR4 and 100G-BASE-PLR4) become an integral part of most networks there is a growing requirement to be able to connect these to 10G switches and servers. Often a number of servers are located in the same rack and so presentation of multiple 10G ports within top-of-rack panels is required. M400 cassettes primarily have two functions. They enable 40G/100G PLR4 trunks to be connected to existing 10G/25G ports or they enable a QSFP+ or QSFP28 port to be broken out into SFP+ or SFP28 ports.

LC presentation within 19” racks

M400 Series cassettes can be housed in either the M Series 1U or 3U housing panel and are locked into place with a simple latching mechanism. This negates the need for any tooling or specialist fibre installation skills. The M400 cassettes can then be connected to the network using M400 Series trunk cables and patch cords. The M400 Series modular cassette’s unique design enables both front and rear cassette installation.


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