H-4ASI-DS3 1 to 4 Channel ASI over E3/DS3 Transport System (ASI to / over DS3)

H-4ASI-DS3   1 to 4 Channel ASI over E3/DS3 Transport System  (ASI to / over DS3)

DVB  ASI is a very common video transport protocol in the digital video broadcast industry. Many TV studios have DS3 links to the broadcast headend.  It is possible to use this link to carry a DVB-ASI stream over the DS3 line at up to 44Mbps. It can carry multiple program streams in either MPEG2 or MPEG4 format. Often it is necessary to transport these ASI Transport Streams from a studio to a broadcast head end. It is possible to transport the ASI over DS3 connections. The H-ASI-DS3 unit can encode and carry up to 4 independent DVB-ASI transport streams over a standard DS3 line. These units are for ASI over DS3 Transport. ASI to DS3 and DS3 to ASI conversion is a cost effective solution for DVB signal transport.

Product features
 
 •  19 1RU chassis and front panel parameter selection
 •  E3/DS3 Complied with ITU-T G.703
 •  Supporting Framing in accordance with G.832/G.751 (E3) or G804/G.752 (DS3)
 •  Supporting prevailing Digital TV Headend protocols
 •  Bi-Directional conversion between MPEG-II TS and E3/DS3
 •  1 to 4 channels ASI TS simple mux and demux
 •  Built-in Clock Recovery
 •  Supports FEC, RS
 •  ASI TS Spread/Burst mode Auto Negotiation
 •  PCR correction and bit stuffing
 •  Static PID filtering
H-4ASI-DS3 1 to 4 Channel ASI over E3/DS3 Transport System (ASI to / over DS3)

Specifications

Input Interface Characteristics

DS3 (G.703 Standard)
Connector                                                         BNC
Impedance:                                                       75 Ohm
TS packet format:                                             188/204 bytes
Input bit rate:                                                     44.736Mbps(DS3)
Encode:                                                             B3ZS(DS3)
ASI (DVB standard)
Connector:                                                        BNC
Impedance:                                                       75
TS standard:                                                     ISO13818-1
Input valid bit rate:                                            214Mbps max (per channel)
TS packet format:                                             188/204 bytes (automatic identification)
TS input format:                                                equality/ packet burst / inequality

Output Interface Characteristics

DS3 (G.703 Standard)
Connector:                                                        BNC
Impedance:                                                       75
TS packet format:                                             188/204 bytes
Output bit rate:                                                  44.736Mbps(DS3)
Encode:                                                             B3ZS (DS3)
Transit distance:                                               >50m(75-3 coaxial line)
ASI (DVB Standard)
Connector:                                                        BNC
Impedance:                                                       75
TS standard:                                                     ISO13818-1
TS packet format:                                             188/204 bytes (RS encoding 204bytes)
TS input format:                                                equality