Samsung DCS-816 SIO 1/2 Card (Refurbished)Key Features: Samsung DCS 816 SIO 1 2 Card Installs in DS 616 system Provides 2 RS232C serial interfaces with DB9 connectors for connection to a computer, printer or modem (for SMDR or PCMMC) Equipped with a an 8 channel analog caller ID signal decoder; Required for caller ID display
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