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NEC DS1000 User Manual

NEC DS1000
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System Preparation and Configuration
1-4 Section 1: Installation Basics DS1000 Hardware Manual
Single Line Telephone REN Limitations
Please note the following when installing single line telephones:
The total Ringer Equivalence Number (REN) per system cannot exceed 4.
The total REN per analog port cannot exceed 4.
Ringer Equivalence is cumulative.
By default, all analog telephones ring simultaneously for outside calls (as do all analog telephones con-
nected to the same port). This means you must add up all analog telephones connected to the system (includ-
ing all those connected to the same port) and ensure that the total combined REN is 4 or less.
Note: A REN of 1 is the normal for an industry standard 2500 set with electromechanical ringer. Many
phones with electronic ringers have signicantly lower RENs.

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NEC DS1000 Specifications

General IconGeneral
BrandNEC
ModelDS1000
CategoryTelephone
LanguageEnglish

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