16 ports FXO FXS over fiber PCM Multiplexer
16 voices 4RS232 4E1 4ETH Fiber optical Multiplexer
16 ports FXO/FXS PCM fiber Multiplexer
16 ports E&M PCM multiplexer
16 voices 4RS232 4E1 4ETH Fiber optical Multiplexer
16 ports FXO/FXS PCM fiber Multiplexer
16 ports E&M PCM multiplexer
