Intaneti Multiplexer: kufotokoza, cholinga, mitundu

A multiplexer digito ndi zomveka kuphatikiza chipangizo chimene anafuna kuti kufala ankalamulira deta kudzera m'njira zosiyanasiyana deta ndi njira linanena bungwe. Ndipotu chipangizo ichi ndi angapo digito masiwichi Pamalo. Iwo likukhalira kuti lophimba ndi digito multiplexer athandizira chizindikiro mu mzere umodzi linanena bungwe.

chipangizo chimenechi ali magulu atatu a zolowetsa:

• adiresi, bayinare malamulo amene amasankha mfundo zake athandizira chikugwirizana ndi linanena bungwe;
• nkhani;
• zololera (gating).

The opangidwa Integrated madera digito multiplexer 16 ali pazipita zolowetsa zambiri. Ngati unit imene imafuna ndalama zazikulu, zimene zinachitikira dongosolo wamangidwa otchedwa multiplexer mtengo tchipisi angapo.

Intaneti multiplexer angagwiritsidwe ntchito kaphatikizidwe pafupifupi aliyense wagawo zomveka, zomwe zayamba amachepetsa chiwerengero madera ntchito zinthu nzeru.

Malamulo kaphatikizidwe zipangizo zochokera multiplexers:

• mapu Karnaugh wamangidwa chifukwa ntchito linanena bungwe (malinga ndi mfundo za ntchito variable);
• amusankha mu dongosolo la ntchito ya dera la multiplexer;
• masking ndi masanjidwewo anamanga, amene zizigwirizana dongosolo ntchito ndi multiplexer ya;
• ndi masanjidwewo chifukwa ayenera chokhwima pa mapu Karnaugh;
• kenako anagwira minimization ntchito mosiyana kwa m'dera lililonse la khamu la;
• pamaziko a kuchepetsa zotsatira koyenera kumanga dera la.

chiphunzitso tsopano kuchita. Taonani kumene ntchito zipangizo zimenezi.

multiplexers kusintha ntchito kupoletsa mitsinje digito (chachikulu) pa mlingo wa 2048 kbit / s wa analogi chizindikiro (kulankhula), ndi polumikizira digito deta mtanda kugwirizana njira zamakono pa 64 kbit / s, kupatsira digito mtsinje wa IP / Efaneti maukonde ndi akatembenuka mzere ma siginalo ndi mfundo thupi.

Ndi chipangizo otere kufika 60 (ena zitsanzo, chithunzi ichi angakhale) analogi n'kukathera mu 1 kapena 2 E1 128 kapena akanema wolembetsa ku anayi E1. Childs, analogi PM n'kukathera protrude mizere ndi gulu ma siginalo kapena dongosolo alamu akuyendera pa njira zosiyana. njira izi mawu akhoza wothinikizidwa kuti 32 kapena 16 kbit / s pa njira, lidalembedwa ADPCM 'kala' ikusonyeza.

multiplexers kusintha amakulolani kugwiritsa ntchito mogwirizana multicast, mwachitsanzo kupereka chizindikiro kwa mmodzi mwa njira digito kapena analogi pa anthu ena. Nthawi zambiri ntchito kupereka wailesi imodzi m'madera osiyanasiyana.

Kuwala multiplexers - ndi zipangizo lakonzedwa kuti ntchito deta ndi mitsinje ntchito matabwa kuwalako zosiyanasiyana matalikidwe kapena gawo grating ndipo timaganiza. Ubwino wa zipangizo amenewa akuphatikizapo sichisinthasinthanso, chitetezo luso, chitetezo kuwakhadzula wa mudziwe opatsirana.