FRMM Fiber Optic Rotary Joint

Product Introduction

The FRMM Type Fiber Optic Rotary Joint is a currently available small-sized multi- channel fiber optic rotary joints, with a bore size of only 20mm and the ability to contain 2-7 independent fiber optic channels. It can be configured with single-mode, multi-mode, or single-multi-mode hybrid fibers and is available in products with resistance to environmental factors such as shock, vibration, high and low temperatures.

Elements Required for Ordering
FRMM①-②-③-④-⑤-⑥/⑦

①Channel

②Fiber Type

③Operating

Wavelength

Tail Fiber

2 ～ 7

9/125(single-mode) 50/125(multi-mode) 62.5/125(multi-mode)

850

1310

1550

④Tail Fiber: length 1.2m, S (customer specified)

⑤Package: Φ0.9mm, Φ2.0K, Φ3.0K, K= armor-clad

⑥Connector Type: FC, ST, SC, LC, N= no connector

⑦End Face Type: PC (flat), APC (angled)

Example：FRMM4-9/125-1310-1-Φ2.0K-FC/PC

Main Technical Performance

Indicator Name	Value
Bandwidth	±50nm
Wavelength	1310/1550(SM);850/1310(MM)
Insertion Loss (Room Temperature)	≤3.5dB
Insertion Loss Fluctuation	≤1.5dB
Return Loss	≥40dB(SM)
Power Handling	≤23dBm
Tensile Strength	≤12N
Rotation Speed	0 ～ 300rpm (higher speeds can be customized)
Estimated Lifetime	>1 亿转
Operating Temperature	-20 ～ 60℃ (-45 ～ 85℃ optional)
Storage Temperature	-45 ～ 85℃
Weight (excluding tail cable and connector)	185g
Vibration and Impact Standard	GJB150 Land Mobile
Protection Class	IP54(IP65、IP67 optional)