Home > Expansion > NEC 1091004 16ESIU 16 Port Digital Station Card
The only NEC DSX business telephone system reseller that is also a Microsoft Gold Certified partner Confused about VoIP? Let our MCSE staff explain how VoIP can hurt a company using it for the wrong reason.  Did you know? Some customers are best served by local installers, not online resellers. Call us, we can help you decide.
NEC DSX Business Phone Systems cost less when you build them from scratch at our website versus buying bundled kits from other websites. Build a shopping cart today and see the savings!

NEC 1091004 16ESIU 16 Port Digital Station Card

NEC 1091004 16ESIU 16 Port Digital Station Card
Item# NEC-1091004
Regular price: $164.17
Sale price: $139.99
Availability: Usually ships the same business day.

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.