Txheej txheem cej luam
DMB-9580 MPEG-2 24-Channel SD Encoder yog ib qho kev tshaj tawm qib encoding platform uas siv cov cuab yeej compression siab heev nrog cov yam ntxwv ntawm tus nqi qis qis thiab qis latency. Nws tuaj yeem muab cov duab zoo txawm tias tus nqi qis. DMB-9580 yog kev koom ua ke nrog 24 channels. Muab nrog rau sab nraud 2 * ASI cov tswv yim, nws tuaj yeem ua ntau yam nrog cov kev pabcuam hauv zos kom tshem tawm cov kev xav tau ntawm multiplexers, thiab tseem cascading nrog ntau tus encoders, kom yooj yim lub network architecture rau cov kev daws teeb meem siab. Cov cuab yeej txhawb nqa cov zis tawm cuam tshuam ntawm ASI thiab IP (TSoIP) tawm, thaum TS dhau IP tawm muab 1 * MPTS lossis 24 * SPTS dhau IP hloov pauv los ntawm software. DMB-9580 yog ua ke nrog cov neeg siv-phooj ywg NMS, kom hloov kho tau yooj yim ntawm software ntxiv cov haujlwm tshiab lossis txhim kho cov yam ntxwv thiab txhim kho kev ua haujlwm. Nws yog cov cuab yeej nyiam rau DTV cov chaw muab kev pabcuam thiab cov neeg siv khoom rau nws qhov kev ua tau zoo tsis sib xws, hloov tau yooj yim, compression siab heev thiab muaj peev xwm them taus rau ib channel.
Nta:
- Video compression: MPEG{{0}}:2:0 MP@ML
- Kev lag luam ua compression tshuab rau MPEG-2
- Suab compression: MPEG-1 Layer2, HE-AAC thiab LC-AAC (yeem)
- Muab ASI thiab IP (UDP / IP) tso zis
- Ultra-tsawg tus nqi: 1 ~ 15Mbps
- Ua hauv PCR muaj peev xwm
- Dynamic GOP tsis siv neeg tswj
- Multiplexing nrog sab nraud ASI hauv
- Muab PSI/SI muab tso ua ke thiab NIT, LCN insertion
- PAL/NTSC hom muaj
- Tswj los ntawm cov keyboard rau pem hauv ntej vaj huam sib luag, LCD zaub
- Tswj los ntawm lub web browser ntawm Ethernet interface
- Upgraded ntawm Ethernet interface
Cim npe nrov: Tuam Tshoj av modulator manufacturers, lwm tus neeg, Hoobkas
Specifications
ASI Input
- Channel: 2 * ASI (Independent)
- Interface: BNC, 75 ohm
- Teeb liab theem 200-800mVp-p
- Pob Length: 188 bytes
- Qhov siab tshaj plaws-tus nqi: ib qhov chaw nres nkoj Tsawg dua lossis sib npaug rau 100Mbps
- Pob ntawv hom: Byte hom
ASI tso zis
- 2 Cais ASI (Xaiv los ntawm kev hloov pauv raws lossis MPTS channel)
- 75Ω, BNC, 188 Bytes
- MPEG-2 TS dhau DVB-ASI (EN 50083-9)
IP tso zis
- RJ45 Chaw nres nkoj, 100/1000M GigE Chaw nres nkoj
- Cov zis ib txhij nrog N * SPTS (N==HDMI channels) thiab 1 * MPTS (modulation lossis MPTS channels)
- MPEG-2 TS dhau RTP, UDP unicast thiab multicast streaming
- Configurable packet size({0}})x188Bytes Lim Null Packet
- Tag Nrho Bitrate: 1-200Mbps (Yuav tsum muaj ntau tshaj qhov encoding bitrate)
MODULATION (4/8 * RF rau kev xaiv)
- Connector: 1 Chaw nres nkoj, F-hom, 75Ω
- Cov zis rov qab poob: 14 dB
- MER Ntau dua lossis sib npaug rau 40dB
- RF tso zis theem: {{0}} ~ -10dbm, 0.1db kauj ruam
- RF zaus: 47-860Mhz, 1KHz kauj ruam
- Xov tooj ntawm RF Channel: 4/8
- Modulation hom: DVB-C, DVB-T, ATSC, ISDB-T, DTMB
DVB-T Modulation
- Channel: DVB-T uas nyob ib sab frequencies
- Modulation txuj: EN300744
- Bandwidth: 6M, 7M, 8M
- FFT hom: 2K, 8K
- Constellation QPSK, 16QAM, 64QAM
- Guard Interval 1/4, 1/8, 1/16, 1/32
- FEC 1/2, 2/3, 3/4, 5/6, 7/8
ATSC-T Modulation
- Channel: 8VSB * 4 nyob ib sab zaus
- Constellation: 8 VSB
DVB-C Modulation
- Channel: DVB-C nyob ib sab frequencies
- DVB-C Standard DVB-C (J83.A, J83.B, J83.C)
|
Tus neeg nqa khoom |
Annex A |
Annex B |
Annex C |
|
|
Lub hnub qub (QAM) |
16, 32, 64, 128, 256 |
64 |
256 |
64, 256 |
|
Bandwidth (MHz) |
8 |
6 |
6 |
6 |
|
Symbol Rate (Mbaud) |
5-7 |
5.057 |
5.361 |
4.2-5.3 |
ISDB-T Modulation
- Channel: ISDB-T zaus
- Modulation standard: ARIB STD-B31
- Constellation DQPSK, QPSK, 16QAM, 64QAM
- Guard Interval 1/32, 1/16, 1/8, 1/4
- Kis hom 2K, 4K, 8K
- Guard Interval 1/32, 1/16, 1/8, 1/4
- Code tus nqi 1/2, 3/4, 5/6, 7/8
- Bandwidth: 6Mhz
DTMB Standard GB 20600-2006
- Constellation: 4QAM, 16QAM, 32QAM, 64QAM
- Tus lej lej: {{0}}.4, 0.6, 0.8
- Guard Interval: 420, 595, 945 IONS
Kev xaiv dav dav
Qhov System Management
- Connector: 1 * RJ-45, 10/100 Base-T interface.
- Pem hauv ntej vaj huam sib luag thiab web browser ntawm Ethernet interface / NMS
Lub cev thiab lub zog
- Voltage: 100 txog 120/200 rau 240V AC ± 10%; 50/60Hz
- Kev siv hluav taws xob: 60W
- Ua haujlwm kub: 0 ~ 45 degree
- Cia kub: -20 ~ 80 degree
- Tus txheeb ze humidity: 10% ~ 90% (tsis-condensing)
- Qhov Loj: 482mm (W) × 380 (D) mm × 45mm (H) (19inch, 1RU)
- Qhov hnyav: 4.6 KGS
