Installing a NEC DSX-40 Plug & Play phone system
Step 1: Fasten the telephone system to the wall.
Securely fasten the telephone system to the wall using proper mounting hardware.
The telephone system needs to be placed in a location close to the D-MARC and Station Cable Block.
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D-MARC: This is where your telephone provides you access to your telephone lines. It will usually have an orange cover and your telepehone numbers will be written on it. This is also called an RJ21X.
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STATION CABLE BLOCK: This is the point of termination for the cables that run out to each of your offices. Station cables usually consist of 8 wires. These 8 wires work in pairs, each pair with it’s own color code. (white-blue pair, white-orange pair, white-green pair, white-brown pair). Most phone systems only require one pair, most commonly the white-blue pair.
STEP 2: Connect the telephone extensions
There should a Cat3 (or is some cases Cat5) cable running from the phone room out to each office where a telephone will be located. In most cases this cable will be terminated on a 66 block in the phone room and a Telephone Jack in each office. Locate the position on the Station Block that corresponds with the telephone jack where you want your first extension.
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Each extension consists of 4 pins on the System Block. 2 pins in Column A which are used for the system wires. The top pin in column B, called the TIP, and the bottom pin in column B, called the RING.
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Connect the white jumper wire to Column B, TIP.
Connect the blue jumper wire to Column B, RING.
Route the other end of the jumper wire over to the Station Block and connect it to the pins corresponding to the extension you are activating.
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Step 3: Connect the telephone lines
Locate your main telephone number on the D-MARC. Columns A and B on the D-Marc are reserved for phone company use and should not be used. Column C and D are for customer use. In most cases the phone company will terminate their wires on column A, you will terminate your wires on column D and a metal clip will connect columns B and C.
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Each phone number consists of a top pin, known as the TIP and a bottom pin, known as the RING.
Connect the white jumper wire to the TIP in column D for your first phone number.
Connect the blue jumper wire to the RING in column D for your first phone number.
NOTE: YOU MAY NEED TO REMOVE THE ORANGE COVER
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Route the other end of the jumper wire over to the System Block and connect the white jumper wire to the top pin of LINE 1. Connect the blue jumper wire to the bottom pin of LINE 1.
If your phone lines are located on the left side of the System Block you will connect to column B.
If you phone lines are located on the right side of the System Block you will connect to column C.
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Repeat this step for each of your phone lines.
