04487.pdf

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300 BPS Internal Modem

JUMPER OPTIONS

(250-1003)

Settings

Faxback Doc. # 4487

A set of three pins is designed to customize the board to your phone system.

If you use a standard home phone, place the jumper over pins E4 and E5. If

you have a multi-line business phone, use pins E5 and E6.

┌───────────────────────────────────────────────────┐

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SETTINGS

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Standard Home Phone

E4 and E5

│

Multi-line Business Phone

E5 and E6

│

└───────────────────────────────────────────────────┘

The modem board has a built-in provision for configuring it to match your

requirements. It can be matched for use with an external RS-232, a single-

line (home type) telephone connection, or the typical multi-line business

installation.

On the board are two groups of electrical jumpers. A jumper is a small

rectangular block of black plastic which has two openings in its base. When

it is placed over two metal pins which extend about 1/4 " above the surface

of the board, it electrically connects those pins together.

One set of three pins are labeled PRImary and SECondary. As supplied, the

modem option board comes configured for the primary mode. If you plan to use

only the modem option board, you may skip to the installation instruction

page. However, if you already have installed,or plan to immediately install

the separate RS-232C option board, remove the jumper from the center pin and

the pin marked PRI and, instead, place the jumper over the center pin and the

one marked SEC.

Another set of three pins are designed to customize the board to your phone

system. If you use a standard home phone, place the jumper over pin E4 and

E5. If you have a multi-line business phone, use pins E5 and E6.

(abo-07/28/93)