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NEC 1091004 16ESIU 16 Port Digital Station Card
Product Description
Each NEC 1091004 16ESIU card connects 16 digital extensions (i.e., DSX keysets). The 16ESIU has a Mode Switch (for
taking the card out of service). It also has a status LED that indicates proper card operation — as well as a
port activity LED that flashes faster as traffic on the card increases. You can install up to two 16ESIU Cards
in a DSX-80. You can install up to six 16ESIU Cards in a DSX-160.
Tips to remember:
• In DSX-160, you must install a separate power supply for every two 16ESIU Cards installed.
• In both DSX-80 and DSX-160, you must install a 16ESIU Card in slot 1.
• You can install additional 16ESIU Cards in any slot.
Tips to remember:
• In DSX-160, you must install a separate power supply for every two 16ESIU Cards installed.
• In both DSX-80 and DSX-160, you must install a 16ESIU Card in slot 1.
• You can install additional 16ESIU Cards in any slot.