Import Broadcast-4ch Sd H.264 Digital Encoder/Transcode — Buy in Bulk from Supplier in China

The ENC3140 from Hangzhou Dibsys Technology Co., Ltd. is a broadcast-level DVB standard encoder that compresses four independent SD video channels into H.264/AVC streams. It accepts four CVBS inputs at 1.0 Vp-p, 75 ohm impedance, plus eight channels of analogue audio at 2 Vp-p, 600 ohm impedance, and outputs via dual ASI interfaces and a 100 M Base-T Ethernet port. The unit supports both PAL (576i) and NTSC (480i) formats with automatic saliva adaptive selection, and delivers single-channel bit rates from 0.5 Mbps to 15 Mbps in 188-byte transport stream packets.

Video encoding follows H.264/AVC Main Profile, Level 3.0, with spatial preprocessing and scene-change detection to maintain picture integrity at low bit rates. Audio is encoded with MPEG I Layer I/II at sampling rates of 32 kHz, 44.1 kHz, or 48 kHz, with quantisation at 24 bit and selectable bit rates from 32 kbps to 384 kbps. The embedded clock correction circuit and variable PCR re-correction adapt the output to different network conditions, while PID modifying and PSI/SI generating capabilities allow integration into existing DVB head-end infrastructure. The unit draws 30 W from a 90-250 V AC, 50/60 Hz supply and operates from -10 degrees C to 50 degrees C.

Typical buyers include digital TV head-end operators, IPTV service providers, and educational institutions running distance-learning or remote live rebroadcast networks. The encoder's IP output supports both multicast and unicast UDP, with individual SPTS-to-IP mapping per channel and optional MPTS encapsulation. Each channel can be managed locally through a six-key front panel with LCD display, or remotely via SNMP and over-the-air upgrades through the RJ45 management port. The 53 x 46 x 14 cm carton packaging is standard for rack-mount or bench-top installation in broadcasting facilities.

Hangzhou Dibsys Technology Co., Ltd. is located at 2-2F, 102 Xueyuan Road, West Lake District, Hangzhou, Zhejiang Province, 330012, China. The supplier holds a harbor trust tier on the platform, with a response rate of 0.00 and no recorded average response hours, which suggests limited transactional activity or a new listing. The address places the company in Hangzhou's established technology district, near several universities and research institutes that support the broadcast equipment sector.

The listing provides no information about factory size, year of establishment, revenue, certifications beyond the cited GB standards, or specific client references. Buyers should verify the supplier's production capacity, quality management system certification, and after-sales support capability directly. The ENC3140 is positioned as a broadcasting-level product, but the extent of Dibsys's in-house R&D versus assembly should be confirmed before committing to volume orders.