特點： 基于 DSL接入或以太網(wǎng)接入的IPTV和VoIP開通 OTDR模塊技術(shù)參數(shù) OTDR模塊 中心波長 脈寬 動態(tài)范圍 事件盲區(qū) 衰減盲區(qū) E4126LM 1310/1550±20 nm 3 ns to 10 μs 32/30dB 1 m 4 m E4136LM 1310/1550±20 nm 1625±10nm 3 ns to 10 μs 32/30/30dB 1 m 4 m E4138LM65 1310/1550/1650±20nm 3 ns to 10 μs 32/30/28dB 1 m 4 m E4136RLM 1310/1550±20 nm 1625±10nm (帶濾波器) 3 ns to 10 μs 32/30/30dB 1 m 4 m E4117LM 1625±10 nm 3 ns to 10 μs 30dB 1 m 4 m E4118LM65 1650±20 nm 3 ns to 10 μs 28dB 1 m 4 m E4118RLM65 1650±20nm (帶濾波器) 3 ns to 10 μs 28dB 1 m 4 m E4126MA 1310/1550 nm 3 ns to 20 μs 37/35dB 90cm 4 m E4136MA 1310/1550/1625 nm 3 ns to 20 μs 37/35/35dB