NEC DSX40 Four Port CO/Trunk Card
DSX40 4-Port Trunk Incoming Line Card provides interface of up to 4 more incoming lines to an existing NEC DSX40 phones system.
The NEC DSX40 phone system can only be expanded to a maximum of 8 incoming lines.
The NEC DSX40 can only except only 1) 4-Port CO Trunk incoming line card.
Part Number 1091001
THIS EXPANSION CARD IS COMPATIBLE WITH
THE NEC DSX40 PHONE SYSTEM ONLY AND WILL NOT WORK WITH ANY OTHER PHONE SYSTEM.
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