SR812ST Bidirectional waho 2-Putanga Fiber Optical Receiver
Tau tauira: SR812ST
Waitohu: Softel
MOQ: 1
He pai te mahinga AGC
Mana Tukatuka Moroiti, Whakaaturanga Mamati
Ko te Tukatuka SMT ka Whakapaipai i te Whakawhiti Tohu Whakaata
01
Whakaahuatanga Hua
Tirohanga Poto
Ko SR812ST(R) to matou hou-koeke teitei-rua putanga CATV whatunga whatu kaiwhiwhi. Ko te whakahiato o mua ka tango i nga GaAs MMIC katoa, ko te pou-whakanui ka tango i te waahanga GaAs. Ko te hoahoa ara iahiko pai me o maatau 10 tau o te wheako hoahoa ngaio, kia eke nga taputapu ki nga tohu tohu mahi pai. Ko te whakahaere microprocessor, te whakaaturanga mamati o nga tawhā, he tino ngawari te patuiro miihini. Koinei te taputapu matua ki te hanga i te whatunga CATV.
Nga Ahuatanga Mahinga
- Whakautu teitei PIN ngongo whakawhiti whakaahua hiko.
- Ko te hoahoa ara iahiko kua arotau, te hanga tukanga SMT, me te ara tohu pai kia pai ake te tuku tohu whakaahua hiko.
- Ko te maramara RF attenuation motuhake, me te pai o te RF attenuation me te raina taurite, te tino tika.
- Ko te taputapu whakakaha GaAs, te whakaputanga rua te mana, me te nui o te hua me te iti o te korikori.
- Kotahi te Chip Microcomputer (SCM) e mahi ana i nga taputapu whakahaere, ka whakaatuhia e te LCD nga tawhā, te waatea me te mahi mohio, me te mahi pumau.
- He pai te mahinga AGC, ina he －9～＋2dBm te awhe hiko whatu whakauru, ka noho tonu te taumata whakaputa, karekau e rerekee te CTB me te CSO.
- Ko te atanga whakawhitiwhiti raraunga kua rahuitia, ka taea te hono atu ki te akomanga Ⅱ te kaiwhakautu whakahaere whatunga, me te uru atu ki te punaha whakahaere whatunga.
- Ka taea e te tukunga hokinga te kowhiri i te aratau pakaru kia tino whakahekehia te haruru o te haruru me te whakaheke i te nama o mua.
Nga Tikanga Whakamatau Hononga
Ko nga tawhā hangarau o tenei pukapuka e ai ki te tikanga ine o GY/T 194-2003
1. Ka whiwhi wahi whatu whakamua: me te 10km te muka whatu paerewa, te attenuator whatu hāngū, me te kaiwhakawhiti whatu paerewa i tito te hononga whakamatautau. Tautuhia te tohu hongere TV tairitenga 59 PAL-D ki te awhe 45/87MHz～550MHz i raro i te ngaronga hononga kua tohua. Tukua te tohu whakanekeneke matihiko i te awhe o te 550MHz～862/1003MHz, ko te taumata tohu whakarereke mamati (i te 8 MHz bandwidth) he 10dB iti iho i te taumata kawe tohu tairitenga. Ina he -2dBm te mana whatu whakauru o te kaikawe whatu, ko te taumata whakaputa RF ko 108dBμV, me te 9dB putanga honga, ine i te C/CTB, C/CSO, me C/N.
2. Wāhanga tuku whatu whakamuri: Ko te papatahi hono me te awhe hihiko NPR ko nga taupū hono e titoa ana e te kaiwhakawhiti whatu whakamuri me te kaiwhiwhi whatu whakamuri.
Tuhipoka: Ina ko te reanga putanga whakatau ko te whirihoranga katoa o te punaha me te mana whatu whiwhi ko -2dBm, ka tutuki nga taputapu ki te taumata putanga teitei o te taupū hono. Ina whakaitihia te whirihoranga o te punaha (ara, ka whakahekehia nga hongere tuku tuuturu), ka piki ake te taumata whakaputa o nga taputapu.
Panui Whakahoahoa: Whakaarohia kia tautuhia e koe te tohu RF ki te 6~9dB putanga honga i roto i te tono miihini whai kiko hei whakapai ake i te taurangi kore raina (i raro i te node) o te punaha taura.
Kaore ano kia tino mohio?
He aha te korehaere ki to maatau wharangi whakapā, ka pai matou ki te korerorero ki a koe!
| SR812ST Bidirectional waho 2-Putanga Fiber Optical Receiver | |||||
| Tūemi | Waeine | Tawhā Hangarau | |||
| Wāhanga whiwhi whatu whakamua | |||||
| Tawhā Optical | |||||
| Te Whiwhi i te Mana Optical | dBm | -9 ~ +2 | |||
| Ngaronga Whakahoki Optical | dB | >45 | |||
| Roanga Ngaru Whakawhiwhi Optical | nm | 1100 ~ 1600 | |||
| Momo Tuhono Optical |
| FC/APC, SC/APC kua tohua ranei e te kaiwhakamahi | |||
| Momo muka |
| Aratau Kotahi | |||
| HonongaMahi | |||||
| C/N | dB | ≥ 51（-2dBm tāuru） | |||
| C/CTB | dB | ≥ 65 | Taumata Huaputa 108 dBμV 6dB taurite | ||
| C/CSO | dB | ≥ 60 | |||
| Tawhā RF | |||||
| Awhe Auautanga | MHz | 45 ~862 | 45 ~1003 | ||
| Papatahi i roto i te Band | dB | ±0.75 | ±0.75 | ||
| Taumata Putanga Whakatauria | dBμV | ≥ 108 | ≥ 108 | ||
| Taumata Huaputa Max | dBμV | ≥ 114 | ≥ 112 | ||
| Nganganga Whakahoki Putanga | dB | （45 ~ 550MHz）≥16/(550~1000MHz)≥14 | |||
| Putanga Putanga | Ω | 75 | 75 | ||
| Awhe EQ Mana Hiko | dB | 0～10 | 0～10 | ||
| Awhe ATT Mana Hiko | dBμV | 0～20 | 0～20 | ||
| Whakahoki OpticalEmisioniPtoi | |||||
| Tawhā Optical | |||||
| Waengaru Tuku Optical | nm | 1310±10, 1550±10 kua tohua ranei e te kaiwhakamahi | |||
| Putanga Mana Optical | mW | 0.5, 1, 2 | |||
| Momo Tuhono Optical |
| FC/APC, SC/APC kua tohua ranei e te kaiwhakamahi | |||
| Tawhā RF | |||||
| Awhe Auautanga | MHz | 5 ~ 65（i tohua e te kaiwhakamahi） | |||
| Papatahi i roto i te Band | dB | ±1 | |||
| Taumata Whakauru | dBμV | 72 ~ 85 | |||
| Putanga Putanga | Ω | 75 | |||
| NPR awhe hihiri | dB | ≥15（NPR≥30 dB） Whakamahia te laser DFB | ≥10（NPR≥30 dB） Whakamahia te laser FP | ||
| Mahinga Whanui | |||||
| Ngaohiko Tuku | V | A:AC（150~265）V;B:AC（35~90）V | |||
| Te Waahi Mahi | ℃ | -40~60 | |||
| Paemahana Rokiroki | ℃ | -40~65 | |||
| Haumākū Pātahi | % | Max 95% kahore he tohe | |||
| Te kai | VA | ≤ 30 | |||
| Ahu | mm | 260（L）╳ 200（W）╳ 130（H） | |||
SR812ST Bidirectional Outdoor 2-Putanga Fiber Optical Receiver Spec Sheet.pdf
