HC5503T slic equivalent, balanced pbx/key system slic.
* Monolithic Integrated Device
* Controlled Supply of Battery Feed Current for Short Loops (30mA)
* Single +5V Supply
* Allows Interfacing With All Ringin.
* PBX Switches (Analog, Digital or ISDN)
* Key Telephone Systems (KTS)
* ISDN PC Plug in Modems
* ISDN S.
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