Features： 1. Used in the outdoor CATV trunk, has good waterproof function. 2. Output port can used for tap and splitter. 3. Temperature compensative function, compensative range: ?5(dB)(?0). 4. Two-way one-module 5. Aluminum-alloy die-casting with large effect on heat elimination and weatherability. 6. Feed-in under the condition of input/output/bridge. 7. Switching and centralized power-supply with AC60V.