8 ports FXO/FXS over fiber PCM Multiplexer
8 ports FXO/FXS over fiber PCM Multiplexer
8 ports 2-wire 4-wire E&M over fiber PCM Multiplexer
8 ports voice PCM multiplexer
8 ports FXO/FXS over E1 PCM equipment
8 ports FXO/FXS over E1 PCM equipment
8 ports 2-WIRE 4-WIRE E&M to E1 PCM multiplexer
8 ports VOICES rs232 ethernet over E1 PCM multiplexing
4 ports FXO/FXS over fiber PCM equipment
4 ports FXO/FXS over fiber PCM device
4 ports 2-wire 4-wire E&M over fiber PCM Multiplexer
4 ports voice PCM equipment