Digital Multiplexer: description, manufa, iri

A dijital multiplexer mai ma'ana hade na'urar da aka yi nufi ga sarrafawa watsa bayanai daga dama data kafofin zuwa wani fitarwa tashar. A gaskiya, wannan na'urar ne a mahara dijital positional sauya. Sai dai itace cewa da canji ne mai dijital multiplexer shigar da sakonni a cikin guda fitarwa line.

Wannan na'urar na da uku kungiyoyin na bayanai:

• adireshin, binary code wanda kayyade wanda bayanai shigar an haɗa zuwa fitarwa.
• bayanai;
• bayar da izni (gating).

A samar Hadakar haihuwarka dijital multiplexer 16 yana da matsakaicin bayanai bayanai. Idan kimanta naúrar bukatar wani ya fi girma adadin, wanda idan da tsarin da aka gina da ake kira multiplexer itace da dama kwakwalwan kwamfuta.

Digital multiplexer za a iya amfani da kira na kusan kowane ma'ana naúrar, wanda ma rage yawan haihuwarka amfani da dabaru abubuwa.

Dokokin kira na'urorin tushen multiplexers:

• Karnaugh taswirar da aka gina domin fitarwa aiki (bisa ga dabi'u na m ayyuka).
• An zabi a cikin tsari na amfani da multiplexer kewaye.
• masking da matrix gina, wanda dole ne dace da oda amfani da multiplexer.
• sakamakon matrix dole ne a aza a kan Karnaugh taswira.
• sa'an nan kwashe minimization aiki dabam ga kowane yanki na tsararru.
• a kan tushen da minimizing sakamakon dole gina kewaye.

A ka'idar yanzu gudanar da aiki. La'akari da inda amfani da irin wannan na'urorin.

M multiplexers aka yi amfani ga samar da dijital qarqashinsu (primary) a wani kudi na 2048 kbit / s na analog sigina (magana), kuma dijital musaya na data giciye-gama lantarki tashoshi a 64 kbit / s, watsin dijital rafi na IP / Ethernet cibiyar sadarwa da kuma don tana mayar line yi sigina da kuma ta jiki gidajen abinci.

Tare da irin wannan na'urar iya tura zuwa 60 (a wasu model, wannan adadi zai iya zama mafi) analog terminations a 1 ko 2 E1 128 ko saye sets cikin hudu E1. Yawanci, da akwatin tilbijin na analog PM terminations protrude Lines da ciwon band yi sigina ko ƙararrawa tsarin da aka aiwatar a kan wani raba tashar. Wadannan murya tashoshi za a iya matsa wa 32 ko 16 kbit / s da tashar, shi yana amfani da ADPCM coding.

M multiplexers ba ka damar amfani da multicast connection, watau ba da sakonni daga daya daga cikin dijital ko analog tashoshi a kan 'yan sauransu. Sau da yawa amfani ga samar da shirye-shiryen rediyo lokaci guda a dama daban-daban na yankunan.

Tantancewar multiplexers - ne na'urorin tsara don aiki tare da bayanai daga qarqashinsu yin amfani da haske bim cewa bambanta da mawadãta ko zamani grating da zango. A abũbuwan amfãni daga irin wannan na'urorin ya hada tsirar, fasaha tsaro, da kariya a kan Hacking na bayanai daukar kwayar cutar.