Product Details
4-Ch Bidirectional Forward and Backward Audio over CCTV Fiber Optic
Converter
Model: LNK-4BA Series
Overview
LNK-4BA Audio over Fiber Converter can simultaneously transmit 4-Ch
Bidirectional Audio (4Ch Forward Audio + 4Ch Backward Audio) signal
through one optical fiber. The product has the audio quality up to
CD level. All optical and electrical interfaces are in compliance
with international standard, with electromagnetic compatibility
design, anti-static and lightning, being suitable for worse working
conditions, with high stability and reliability.
Features
- Non-compression digital audio transmission, quality image, and
real-time
- Support simultaneous transmission of audio signal
- Audio, input/output voltage level: 2Vp-p
- The interfaces have the function against thunder, static and surge.
- No electromagnetic interference, no radio frequency interference
and ground current
- Adoption of VLSI ASIC chip, low power consumption, 4-layer circuit
board design, high reliability
- Adopt industrial chip, industrial design; ensure the long-term
operation free from trouble under harsh working environment.
- Modular structure, plug and play, hot plug, no need of debugging
- Provide desktop/ card type device, applicable to all cases.
Technical Index
Audio interface | Audio Channel | 4CH Forward + 4CH Backward |
Audio input / output impedance | 600Ω (Balance/Imbalance) |
Audio input / output voltage | 2Vpp ( typical value) |
Audio input / output level | 0 dBm ( typical value) |
Audio Digital Bandwidth | 10Hz~20kHz |
Audio Digital Bit Width | 24bit |
Nominal input output level | S/N≥95dB (weighted) |
Audio signal-to-noise ratio | 75dB |
Total harmonic distortion | 0.1% |
Connector | Audio connector: | Pressure connector |
Optical flexible connector | FC/PC |
POWER | DC | +5V 2A |
Power consumption | <15W(single end) |
Environmental condition: | Operating temperature | -25℃~+70℃ |
Storage temperature | -40℃~+80℃ |
Relative humidity | 0~95%(non condensable) |
Contact Information:
Email: sales(at)e-linkchina(dot)com
Tel: +86 755 83128674
Skype: elinkchina003
WhatsApp: +8613926522845
Application Diagram:

Company Profile
E-link China Technology Co., Ltd.
Established in 2001& headquartered in Shenzhen, E-link China
Technology Co., Ltd. (E-link) is a leading Fiber Optic
Communication and CCTV Security Transmission product manufacturer
in China. Our main products include active equipments including
fiber media converters, CCTV fiber converters, CCTV over Ethernet
Converters (HD-SDI over Ethernet, HDMI over Ethernet, Power over
Ethernet), etc. With rich experience in providing high quality
products in telecom and CCTV business, E-link has a large
manufacturing base in Shenzhen, able to deliver cost-effective
solutions to serve our customers successfully.
E-Link Quality:
• ISO9001 Quality System
• Full-Spectrum environment and electrical testing of all product
design
• 48 hours aging test before delivery
• Qualified CE, RoHS, FCC
Since the launch of our products on the domestic market and
international market, we have won a good reputation for our high
quality products and sincere services. Our products are widely
applied to network systems of Telecom, Radio and Television, Public
Security, Bank ,ect. To be in line with different needs of
different customers, we have people to trace the latest market
information so as to keep our products competitive and vital.
Our knowledgeable sales, technical support and engineering staff
are dedicated to understanding your requirements and designing
products & solutions to meet your needs. We shall be pleased to
provide you fiber optical network products with our best price,
superior quality and fast delivery.