Zhonglu Bestone BST-120DQ8P4C-80B Multi-service Optical Transceiver (CN version)

A versatile multi-service optical transceiver (BST-120DQ8P4C-80B) supporting 4 E1 interfaces, 4 physically isolated network ports, 8 standard telephone lines, and 4 magneto/common battery telephone lines. It transmits over dual fiber with an 80km range, provided as a single unit. (CN version)

category: antenna type: Non-original walkie-talkie accessories