Rarangi Utu mo te Rs485 422 Kaitahuri - Kaihuri 64K-FE Takitahi-tahi JHA-CE1tF1 – JHA

Tirohanga

Ko te atanga G.703 (Co-Directional G.703) e wehewehe ana i te huringa 64Kbps ki nga waahanga e 4, ka whakamahia te "0101" hei tohu "0", "1100" hei tohu "1". Ma te huri i te polarity huringa o te poraka tata, ka huri nga tohu-rua i nga tohu taumata-toru. I ia roopu 8 i pakaru te poraka o te polarity rereke, na reira ki te tuku tohu tohu 8KHz. Ma te tohu o runga ake nei, ka taea e te tohu tohu 64Kbps te mahi tahi a G.703 ki te tuku i te tohu wa o te 64KHz me te 8KHz me te 64KHz me te tohu raraunga o 64Kbit/s i te huarahi kotahi me te raina taurite takirua.
Ko tenei kaitahuri atanga e whakarato ana i tetahi atanga G.703 hono-tahi me tetahi atanga Ethernet hei whakatutuki i te tuku raraunga 10/100Base-T Ethernet i runga i te hongere G.703. He tino mahi, he piriti Ethernet ako whaiaro. Ko tenei taputapu ko te taputapu toronga o Ethernet, ma te whakamahi i te whatunga (PDH/SDH/Microwave) e whakarato ana i te hongere G.703 ki te whakatutuki i te Itarangi rohe me te mamao e hono ana me nga atanga rangatū i te utu iti. Ko te taputapu he mahi whakamatautau i waenga i nga huinga hei whakahaere i te whakarewatanga o te kaupapa me te tiaki i ia ra.

Whakaahua Hua

 Momo Mini

Ngā āhuatanga

• I runga i te mana-whaiaro IC
• Ka taea te mohio ki te tuku raraunga Itarangi i roto i tetahi ara iahiko G.703
• Wāhitau Ethernet MAC hihiri (4,096) me te tātari anga raraunga paetata
• Ka taea e te taputapu rohe te whakahaere i te taputapu mamao
• Tirohia te mahi o G.703 koropiko hoki, ka tohu i runga i te LED
• Ka taea te wehewehe i te take o te Co-directional G.703 ka ngaro te tohu na te mea kua pakaru te taputapu mamao, kua pakaru ranei te raina G.703.
• Ko te atanga Itarangi e tautoko ana i te 10M/100M, haurua/taarua katoa ka uru-aunoa, tautoko VLAN
• Ko te atanga Itarangi e tautoko ana i te AUTO-MDIX (raina whakawhiti me te raina hono tika ka taea te urutau-whaiaro);
• Whakaratohia kia 2 nga momo karaka: Co-Directional G.703 matua karaka me G.703 karaka raina;
• Ka taea e te taputapu o te rohe te akiaki i te reiti o te taputapu mamao ki te whai i a ia (i te wa e kore e anga te taputapu, he muhu tena)
• Kia toru te Aratau Roopu Whakamuri: G.703 atanga Roopu Whakamuri (ANA)、Atanga Itarangi Whakamuri Whakamuri(DIG)、Whakahaua te atanga Itarangi mamao Loop Back(REM)
• Tautoko whaiaro urutau 120 Ohm toenga;

Tawhā

♦ Atanga Atanga G.703 Takitahi

Paerewa Atanga: ū ki te kawa ITU-T G.703;

Auau Atanga: 64Kbps±50ppm;

E1 Impedance: 120Ω (taurite);

Whakaaetanga Jitter: I runga i te kawa G.742 me G.823

Tawhiti Whakawhiti Morahi: ki te 500m

♦Atanga Itarangi (10/100M)

Auau atanga: 10/100 Mbps, haurua/taarua katoa te whiriwhiringa-aunoa

Paerewa Atanga: Hototahi ki te IEEE 802.3, IEEE 802.1Q (VLAN)

MAC Wāhitau kaha: 4096

Tūhono: RJ45, tautoko MDIX Aunoa

♦Te taiao mahi

Te pāmahana mahi: -10°C ~ 50°C

Haumākū Mahi: 5%~95 % (karekau he tōhau)

Te pāmahana rokiroki: -40°C ~ 80°C

Rokiroki Haumākū: 5%~95 % (kahore he tōhau)

Whakatakotoranga

Taupānga