A.ITU-Tg.691 B.ITU-Tg.709 C.ITU-Tg.957 D.ITU-Tg.813
A.在ZXWM_M900400G系統(tǒng)中,OTU1表示第1波,波長(zhǎng)為192.1GHZ,單板面板上標(biāo)識(shí)了波長(zhǎng) B.在ZXWM_M9001.6T系統(tǒng)中OTU單板面板上直接用波長(zhǎng)來標(biāo)注,不再標(biāo)注波長(zhǎng)序號(hào) C.在ZXWM_M9001.6T系統(tǒng)中OTU的第1波的波長(zhǎng)也是192.1GHZ D.在ZXWM_M900400G系統(tǒng)和ZXWM_M9001.6T系統(tǒng)中,C波段的波長(zhǎng)序號(hào)和波長(zhǎng)對(duì)應(yīng)關(guān)系完全一致
A. B. C. D.