Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Female, Green, Yellow - Fiber Optic Loopbacks
FIBERTRONICSFiber Optic Loopbacks

FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Female, Green, Yellow

The FIBERTRONICS Fiber Optic Loopback: Single Mode (SKU 3G-OTH-180209, MPN MTL-SM-12-FS) is an MPO loopback with a 12-fiber count, OS2 single-mode fiber, and a female connector. It features a yellow jacket, green…

SKU 3G-OTH-180209

Also listed as: MTLSM12FS · MTL SM 12 FS

Brand
FIBERTRONICS
Item
Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Female, Green, Yellow
Category
Fiber Optic Loopbacks
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

FIBERTRONICS
Manufacturer Part Number
MTL-SM-12-FS
Type
OS2, Female, Green, Yellow, 1-2, Std
Fiber Type
OS2
Fiber Count
12
Jacket Color
Yellow
Product Type
MPO Loopback
Connector Color
Green
Attenuation Type
Standard
Connector Gender
Female
Pinout Designation
1-2
Fiber Mode Measured
Single Mode
Fiber Mode Supported
Single-Mode

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

FIBERTRONICS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FIBERTRONICS Fiber Optic Loopback: Single Mode (SKU 3G-OTH-180209, MPN MTL-SM-12-FS) is an MPO loopback with a 12-fiber count, OS2 single-mode fiber, and a female connector. It features a yellow jacket, green connector, standard attenuation, and a 1-2 pinout designation.

Frequently Asked Questions

What is a FIBERTRONICS fiber optic loopback used for?

A FIBERTRONICS fiber optic loopback is used for testing and troubleshooting single-mode fiber networks. It loops the transmit signal back to the receiver, verifying port functionality and signal integrity in data centers, telecom, and enterprise networks without needing a live link.

What are the specifications of the FIBERTRONICS MTL-SM-12-FS loopback?

The FIBERTRONICS MTL-SM-12-FS is an MPO loopback with 12 fibers, OS2 single-mode fiber, female connector, yellow jacket, green connector, standard attenuation, and 1-2 pinout designation. It supports single-mode operation and is designed for high-density fiber testing.

Where to buy FIBERTRONICS fiber optic loopbacks worldwide?

You can source FIBERTRONICS fiber optic loopbacks worldwide through 3G Electric, a global industrial equipment distributor since 1990. We handle full logistics, customs clearance, and delivery to your location, ensuring reliable supply for your network testing needs.

How to select the right FIBERTRONICS loopback for testing?

To select the right FIBERTRONICS loopback, match the fiber mode (single-mode vs multimode), fiber count (e.g., 12), connector type (MPO), and pinout (e.g., 1-2) to your equipment. For single-mode OS2 networks, the MTL-SM-12-FS with female connector is appropriate. Consult your test set manual for compatibility.

Used in

Common applications for FIBERTRONICS
Data center patching — FIBERTRONICS MPO cassettes (MTC-24LCG29L) for high-density LC to MPO trunk cabling
Telecom central office — FIBERTRONICS adapter plates (LGX-SCDX-6G) for SC APC termination in LGX panels
Network testing — FIBERTRONICS loopbacks (MTL-SM-112-MS) for single-mode MPO port verification
Fiber optic attenuation — FIBERTRONICS attenuators (DFA-1532021) for signal level adjustment in single-mode links
High-speed interconnect — FIBERTRONICS QSFP+ transceivers (QSFP-MM-40G-85-150M) for 40G multi-mode links over OM4
Fiber optic cleaning — FIBERTRONICS cleaning tools (SFP-SM-2G-31-20K) for universal SFP port maintenance

FIBERTRONICS Products

3G Electric supplies FIBERTRONICS fiber optic loopbacks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
FIBERTRONICS Fiberoptics Loopbacks: MPO Loopback, MPO, Single Mode, MTL-SM-24-FS-H, MPO, Std, Green
FIBERTRONICS
FIBERTRONICS Fiberoptics Loopbacks: MPO Loopback, MPO, Single Mode, MTL-SM-24-FS-H, MPO, Std, Green
FIBERTRONICS Fiber Optic Cassette: Single Mode, OS2, 24 LC – UPC, 2 MPO – APC Male, Std, Blue, LC (MPN MTC-24LCG29L)
FIBERTRONICS
FIBERTRONICS Fiber Optic Cassette: Single Mode, OS2, 24 LC – UPC, 2 MPO – APC Male, Std, Blue, LC (MPN MTC-24LCG29L)
FIBERTRONICS Fiber Optic Cassette: Single Mode, OS2, 12 LC – UPC, 1 MPO – APC Male, Low-Loss, Blue (MPN MTC-12LCE19L)
FIBERTRONICS
FIBERTRONICS Fiber Optic Cassette: Single Mode, OS2, 12 LC – UPC, 1 MPO – APC Male, Low-Loss, Blue (MPN MTC-12LCE19L)
FIBERTRONICS MPO Breakout Cables: Multi-Mode, 1 m Lg, MPO / UPC Female End 1, LC / UPC End 2, Aqua (MPN MPO-QSFP-OM3-8LC-1M)
FIBERTRONICS
FIBERTRONICS MPO Breakout Cables: Multi-Mode, 1 m Lg, MPO / UPC Female End 1, LC / UPC End 2, Aqua (MPN MPO-QSFP-OM3-8LC-1M)

More from FIBERTRONICS

View all FIBERTRONICS parts
FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Male, Green, Yellow, 1-12, Std (MPN MTL-SM-112-MS)
FIBERTRONICS
FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Male, Green, Yellow, 1-12, Std (MPN MTL-SM-112-MS)
FIBERTRONICS Fiberoptics Loopbacks: MPO Loopback, MPO, Single Mode, MTL-SM-24-MS-H, MPO, Std, Green
FIBERTRONICS
FIBERTRONICS Fiberoptics Loopbacks: MPO Loopback, MPO, Single Mode, MTL-SM-24-MS-H, MPO, Std, Green
FIBERTRONICS Fiber Optic Looback: Single Mode, 1 Fiber Count, OS2, Blue, Std, LB-LCSM1
FIBERTRONICS
FIBERTRONICS Fiber Optic Looback: Single Mode, 1 Fiber Count, OS2, Blue, Std, LB-LCSM1
FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Female, Green, Yellow, 1-12, Std (MPN MTL-SM-112-FS)
FIBERTRONICS
FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Female, Green, Yellow, 1-12, Std (MPN MTL-SM-112-FS)
FIBERTRONICS Fiber Optic Looback: Multi-Mode, 1 Fiber Count, Beige, Std, LB-LCMM50
FIBERTRONICS
FIBERTRONICS Fiber Optic Looback: Multi-Mode, 1 Fiber Count, Beige, Std, LB-LCMM50
FIBERTRONICS Fiber Optic Looback: Multi-Mode, 12 Fiber Count, OM3, Female, Beige, Aqua, 1-12, Std (MPN MTL-OM3-112-FS)
FIBERTRONICS
FIBERTRONICS Fiber Optic Looback: Multi-Mode, 12 Fiber Count, OM3, Female, Beige, Aqua, 1-12, Std (MPN MTL-OM3-112-FS)
FIBERTRONICS Fiber Optic Looback: Multi-Mode, 12 Fiber Count, OM3, Male, Beige, Aqua, 1-12, Std (MPN MTL-OM3-112-MS)
FIBERTRONICS
FIBERTRONICS Fiber Optic Looback: Multi-Mode, 12 Fiber Count, OM3, Male, Beige, Aqua, 1-12, Std (MPN MTL-OM3-112-MS)
FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Male, Green, Yellow, 1-2, Std (MPN MTL-SM-12-MS)
FIBERTRONICS
FIBERTRONICS Fiber Optic Looback: Single Mode, 12 Fiber Count, OS2, Male, Green, Yellow, 1-2, Std (MPN MTL-SM-12-MS)