SFP module Posted July 26, 2012 at 08:25 AM Posted July 26, 2012 at 08:25 AM Намечается поставка 1G WDM SFP модулей, 3км, SM, SC, заводятся на 100M/bit, не работают с свитчами НР. Ориентировочная цена $30 за пару, поштучно $16. Под заказ 10км - $44 пара , 20км - $48 пара ... Доставка перевозчиками, наложеный платеж, без предоплат (ну если только Вам очень хочется)
wladd Posted July 26, 2012 at 08:53 AM Posted July 26, 2012 at 08:53 AM Знаю знаю эти модули. Недавно мы получили пробную партию таких. Обнаружилось две крупные проблемы с ними. Мы отказали производителю. Хотите выложу отчет?
wladd Posted July 26, 2012 at 09:06 AM Posted July 26, 2012 at 09:06 AM There are some troubles with SFP WDM 3/20km SC. First of all, many non-working modules: 2 out of 40. There are 2 modules RMA!!! RMA(Return Merchandise Agreement) – bad ones In this modules RX not work. I think that the number of non-working modules on a large quantity may be more, as we have received samples, which (in my opinion) is given more attention (to show the best performance in quality). Second: there is problem with switches which has ports that are located closer to each other (such as D-Link DGS-3120-24SC). Photo below: We think that problem in the construction of the body of the transceiver: spacers must be less in height. Photos are below: Also patch cords with SC connectors are bad held in the SC socket of transceiver. If you pull the little patch cord - it falls out of the module. Summary, we don’t like body of this transceivers. Отчет Troubles with SFP WDM 3 or 20km from OUSENT company.docx
SFP module Posted July 26, 2012 at 09:29 AM Author Posted July 26, 2012 at 09:29 AM Брак есть везде, нерабочие меняем (можем предварительно проверить). Это новая партия, конструктивно изменены.
SFP module Posted July 26, 2012 at 09:51 AM Author Posted July 26, 2012 at 09:51 AM There are some troubles with SFP WDM 3/20km SC. First of all, many non-working modules: 2 out of 40. There are 2 modules RMA!!! RMA(Return Merchandise Agreement) – bad ones In this modules RX not work. I think that the number of non-working modules on a large quantity may be more, as we have received samples, which (in my opinion) is given more attention (to show the best performance in quality). Second: there is problem with switches which has ports that are located closer to each other (such as D-Link DGS-3120-24SC). Photo below: We think that problem in the construction of the body of the transceiver: spacers must be less in height. Photos are below: Also patch cords with SC connectors are bad held in the SC socket of transceiver. If you pull the little patch cord - it falls out of the module. Summary, we don’t like body of this transceivers. Отчет Troubles with SFP WDM 3 or 20km from OUSENT company.docx Вы уверены, в Вашем отчете я не вижу что это модули именно этого производителя?
SFP module Posted July 26, 2012 at 09:56 AM Author Posted July 26, 2012 at 09:56 AM Вот фото 3км модулей
wladd Posted July 26, 2012 at 10:03 AM Posted July 26, 2012 at 10:03 AM Проблемы именно с этим корпусом. Проверьте в коммутаторе у которого близко посажены порты. Например Длинк. Именно этого производителя нет, но так как производители осуществляют только сборку, корпус именно этот. Просто выбросили недавно его на рынок. читай проблемы выше.
_WesT_ Posted July 26, 2012 at 10:07 AM Posted July 26, 2012 at 10:07 AM ОЙ в БДкоме будет беда. 48 портов плотно посадить... беда будет
SFP module Posted July 26, 2012 at 10:18 AM Author Posted July 26, 2012 at 10:18 AM Приедут испытаем.
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