NEC DSX Quick Reference

Reference for Hardware Installation
4 ◆ Hardware Installation
DSX Basic Online Training Quick Reference
Power Supplies
CPU
DSX PCBs
DSX Modem
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Power Supply Installation DSX-80/160 Hardware Manual 1093096 Rev 2 Page 29
Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 49
Using the System Load Factor
Worksheet
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
Important
• DSX-80 and DSX-160 use the same power supply.
• Single line telephones do not require external power.
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CPU Card Installation DSX-80/160 Hardware Manual 1093096 Rev 2 Page 30
Installing the RFI Suppressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 28
CPU LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 49
Connecting External Paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 61
Connecting Music Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 62
Connecting a PC for Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 70
Important
• CPU Flash RAM stores the system database.
• The CPU battery backs up telephone settings (such as contrast).
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Installing ESIU PCBs DSX-80/160 Hardware Manual 1093096 Rev 2 Page 31
Installing SLIU PCBs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 33
Installing T1/E1/PRI PCBs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 37
Installing COIU PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 35
Important
• For details on using DS2000 PCBs in DSX-80/160, see
Upgrading DS2000 to DSX-80/160 (P/N 1093077).
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Modem description Built into CPU.
Important
• External modems are not compatible with DSX. The DSX CPU
PCB is used only to output SMDR data.

NEC DSX Specifications