1U 19′ 72F MPO&MTP®-LC Silding Drawer Chassis

1. Introduction

The 1U MPO-LC Chassis is a high-density, 19-inch rack-mount fiber distribution chassis designed for data center, enterprise and telecommunication applications. It occupies one rack unit (1U) of a standard 19-inch rack and provides three (3) LGX-standard module slots, each accepting one LGX-size MPO-LC cassette module or adapter panel.

The chassis converts high-density MPO/MTP trunk connections on the rear into individual LC duplex patch connections on the front. It enables efficient break-out, patching and management of high-fiber-count backbone links, such as those used in 40G/100G/200G/400G networks, while keeping a small footprint and easy front access for moves, adds and changes (MACs).

Figure 1. 1U 19-inch rack-mount MPO-LC chassis (representative product)

2. Key Features

•  High fiber density: up to 72 LC ports (36 LC duplex) in a single 1U rack unit when fitted with three 24F MPO-LC cassettes.
•  LGX standard compatibility: accepts standard LGX-size cassettes and adapter panels from mainstream suppliers.
•  MPO/MTP to LC break-out: rear MPO-12 or MPO-24 trunk input, front LC duplex output, UPC or APC polish.
•  Tool-less module installation: cassettes snap into the slots and are secured with a release latch – no tools required.
•  Front-access patching: all LC ports are located on the front for quick and convenient patching.
•  Robust construction: cold-rolled steel body with black powder-coated finish; rack-mounting ears supplied.
•  Flexible configurations: supports 12F and 24F MPO cassettes in OM3, OM4, OM5 multimode or OS2 single-mode fiber.
•  Integrated cable management: guided trunk and patch routing with adequate bend-radius control.

3. Technical Specifications

The tables below list the nominal specifications of the chassis. Values marked with an asterisk (*) are standard rack-unit or industry-typical values; final specifications are subject to the ordered model.

Table 1. Mechanical specifications

Table 2. Capacity

Table 3. Environmental and compliance

4. Product Structure

Figure 2. Front panel layout (schematic, not to scale)

Table 4. Component description

5. Compatible Modules

The chassis accepts LGX-size cassette modules with typical dimensions of approximately 130 mm (W) x 29.3 mm (H) x 123 mm (D). MPO-LC cassettes provide a plug-and-play break-out between a rear MPO/MTP trunk connector and front LC duplex ports, eliminating field splicing for high-speed network links.

Table 5. Module configuration options

8F MPO to 4x LC duplex	Front ports	Rear port	Material	Dimension(mm)
	4x LC duplex (12 LC)	1 x MPO-12	CRS	130*123*29.3

12F MPO to 6x LC duplex	Front ports	Rear port	Material	Dimension(mm)
	6x LC duplex (12 LC)	1 x MPO-12	CRS	130*123*29.3

24F MPO to 12x LC duplex	Front ports	Rear port	Material	Dimension(mm)
	12x LC duplex (12 LC)	1 x MPO-12&24	CRS	130*123*29.3

2x12F MPO to 12x LC duplex	Front ports	Rear port	Material	Dimension(mm)
	12x LC duplex (12 LC)	2 x MPO-12&24	CRS	130*123*29.3

3x12F MPO to 6x LC Quad	Front ports	Rear port	Material	Dimension(mm)
	6x LC Quad (24 LC)	3 x MPO-12&24	CRS	130*123*29.3

Available options: fiber type OM3 / OM4 / OM5 / OS2; polish UPC or APC; polarity mapping Type A / B / C. Contact the sales team for customized configurations.

6. Other Accessories

8F MPO-LC 0.9mm fanout 30cm	End A	End B	Optical Performance
	1x8F MPO&MTP(Male) with Pin	8x LC simplex 0.9 connectors	Standard MPO IL<0.5dB Super low loss MPO IL<0.35dB LC ‘s IL<0.3dB

12F MPO-LC 0.9mm fanout 30cm	End A	End B	Optical Performance
	1x12F MPO&MTP(Male) with Pin	12x LC simplex 0.9 connectors	Standard MPO IL<0.5dB Super low loss MPO IL<0.35dB LC ‘s IL<0.3dB

24F MPO-LC 0.9mm fanout 30cm	End A	End B	Optical Performance
	1x24F MPO&MTP(Male) with Pin	24x LC simplex 0.9 connectors	Standard MPO IL<0.5dB Super low loss MPO IL<0.35dB LC ‘s IL<0.3dB

MPO Adapter	Optical Performance
	IL<0.2dB
LC DX &Quad Adapter		Optical Performance
		IL<0.2dB

7. Application Scenarios

The chassis is designed for high-density patching and break-out in fiber-optic networks. Typical application scenarios include:

•  Data center structured cabling (EoR / MoR): high-density patching between spine and leaf switches and servers.
•  High-speed network break-out: QSFP-DD / QSFP28 400G or 100G MPO trunk links break out to 100G / 25G / 10G LC ports.
•  Enterprise LAN / WAN and campus backbone consolidation.
•  Storage area networks (SAN) and high-performance computing (HPC) clusters.
•  Telecommunication central offices, FTTx and access networks.
•  Meet-me rooms and co-location cross-connect areas requiring dense, organized fiber patching.

Figure 4. Typical data center application (schematic)

8. Installation

8.1 Unpacking and inspection

Before installation, check the package contents and inspect the product for any damage caused during transport. Standard package contents: 1U chassis x 1, rack-mounting screw kit, cable ties, and this manual.

8.2 Rack mounting

1.  Select an available 1U space in a standard 19-inch rack.
2.  Hold the chassis horizontally and slide it into the rack opening from the front.
3.  Align the fixing holes of the mounting ears with the rack rail holes.
4.  Secure the chassis with four screws (M5 or 10-32, supplied) – two on each side.
5.  Verify that the chassis is level and firmly fastened before loading modules or cables.

8.3 Module installation

MPO-LC cassette modules are installed without tools, as shown in Figure 5.

Figure 5. Module installation steps (schematic)

1.  Align the cassette with an LGX slot on the front of the chassis.
2.  Push the cassette straight into the slot until the release latch clicks and locks.
3.  Check that the cassette is fully seated and the latch is engaged.
4.  To remove a module, press the release latch and pull the cassette straight out.

8.4 Cable routing

Connect the MPO/MTP trunk cable to the rear MPO port of each cassette, and patch the front LC duplex ports to the end devices. Keep the cable bend radius above the minimum value recommended for the cable type (typically at least 10 times the cable outer diameter), secure cables with the supplied cable ties, and leave sufficient slack for future moves and adds.

8.5 Polarity check

Before commissioning, verify that the polarity mapping (Type A / B / C) of the installed cassettes matches the network design, and confirm the fiber type and polish of the trunk and patch cords are consistent end to end.

9. Maintenance and Safety

•  Keep dust caps on all unused ports to protect the connector end faces.
•  Clean connector end faces with approved ferrule cleaning tools or lint-free wipes and isopropyl alcohol before every connection.
•  Do not exceed the minimum bend radius of the cables; avoid sharp bends, crushing or tension.
•  Laser safety: never look directly into optical ports. Optical transceivers may emit invisible laser radiation (Class 1M); cover unused ports when the system is energized.
•  Store the product in a dry, dust-free environment within the specified temperature and humidity ranges.
•  Inspect the installation periodically: verify connector cleanliness, latch engagement and cable routing.

10. Ordering Information

Contact the sales team to confirm part numbers and configurations. Custom module types, fiber grades and connector polishes are available on request.

Table 6. Ordering information (Unloaded patch panel)

Table 7. Ordering information (Full loaded MPO/MTP-LC Cassette)

For Example：FHD1S1-1-2-2-3-1-1