MTP-8 APC to 4 x MDC UPC Harness, 8 Fibers, OS2, Type B

Description

MTP-8 APC to 4 x MDC UPC Harness, 8 Fibers, OS2, Type B

Factory-terminated MTP-8 APC to 4× MDC UPC duplex breakout harness for ultra-high-density singlemode interconnects in modern data centers. The singlemode MTP connector on one end breaks out to four MDC (Miniature Duplex Connector, USConec VSFF family) legs on the other end, giving an 8-fiber (Base-8) channel mapped with Type B (crossover) polarity. MDC connectors deliver twice the port density of standard LC duplex in patch panels, enabling 400G/800G migration paths without footprint expansion.

Key Features

• VSFF MDC breakout: MDC duplex connectors occupy 2× the density of LC duplex in standard patch panel cutouts (3.0 mm pitch).
• Base-8 (8 fibers) MTP-to-MDC breakout: ideal for high-density spine-leaf and 400G/800G aggregation layers.
• Type B (crossover) polarity: standard polarity for direct connection between MTP cassettes at both ends of a link.
• Low insertion loss: MTP APC ≤ 0.35 dB typical; MDC UPC ≤ 0.25 dB typical.
• High return loss: APC end ≥ 60 dB; UPC end ≥ 50 dB.
• Bend-insensitive OS2 fiber: G.657.A1 singlemode fiber with 7.5 mm minimum bend radius.
• LSZH jacket (yellow): OFNR-rated LSZH jacket compliant with IEC 60332-3.
• 100% factory tested: insertion loss, return loss and endface geometry per IEC 61300-3-35; test report shipped with each assembly.

Applications

• 400G/800G data center backbone aggregation breakout from MTP trunk to MDC patch panels
• Hyperscale and AI/ML GPU fabric high-density spine-leaf architecture
• Ultra-high-density ODF frames where LC port density is insufficient
• VSFF (Very Small Form Factor) connector migration from legacy LC duplex
• Single-mode backbone links in colocation facilities

Product Structure

Component	Specification
MTP end connector	MTP-8 Female (no pins), APC endface (green boot)
MDC breakout connectors	4 × MDC UPC Duplex (USConec VSFF family, 3.0 mm pitch)
Polarity	Type B (crossover)
Fiber type	Singlemode OS2, G.657.A1 bend-insensitive
MTP trunk jacket	3.0 mm LSZH, yellow, OFNR
MDC breakout legs	1.6 mm LSZH, yellow, OFNR
Breakout length	0.5 m standard, customizable 0.3 m – 1.5 m
Total length	1 m / 2 m / 3 m / 5 m / 10 m / 15 m / custom
Operating temperature	-20 °C to +70 °C

Technical Specifications

Cable Construction

Parameter	Value
Fiber count	8 (Base-8)
Fiber mode	Singlemode OS2, G.657.A1
Trunk diameter	3.0 mm
Breakout leg diameter	1.6 mm
Jacket material	LSZH (Low Smoke Zero Halogen), OFNR
Jacket color	Yellow
Minimum bend radius	7.5 mm (G.657.A1 fiber)
Tensile load (long term)	100 N

Optical Characteristics

Parameter	MTP APC	MDC UPC
Insertion loss (typical)	≤ 0.35 dB	≤ 0.25 dB
Insertion loss (max)	≤ 0.75 dB	≤ 0.40 dB
Return loss	≥ 60 dB (APC)	≥ 50 dB (UPC)
Wavelength	1310 nm / 1550 nm	1310 nm / 1550 nm
Attenuation at 1310 nm	≤ 0.40 dB/km	≤ 0.40 dB/km
Attenuation at 1550 nm	≤ 0.30 dB/km	≤ 0.30 dB/km

Mechanical & Environmental

Parameter	Value
Operating temperature	-20 °C to +70 °C
Storage temperature	-40 °C to +85 °C
Mating cycles	MTP ≥ 500 cycles; MDC ≥ 500 cycles
Flame retardant	IEC 60332-3 compliant
RoHS / REACH	Compliant

Compliant with IEC 61753-1, IEC 61300-3-35, TIA-568.3-E and ISO/IEC 11801-1. Each assembly ships with serial number, test report and length-specific labeling.