Impulse 3440 Manual de usuario descargar pdf (Pagina 13)

Card Setup

Sealevel Systems ULTRA COMM+422 Page 10

Clock Modes

The ULTRA COMM+422 employs a unique clocking option that allows the

end user to select from divide by 4, divide by 2 and divide by 1 clocking modes.

These modes are selected at Headers J1C through J4C.

To select the Baud rates commonly associated with COM: ports (i.e. 2400,

4800, 9600, 19.2, … 115.2K Bps ) place the jumper in the divide by 4 mode

(silk-screen DIV4).

DIV1

DIV2

DIV4

Figure 12 - Clocking Mode 'Divide By 4’

To double these rates up to a maximum rate for 230.4K bps place the jumper in

the divide by 2 (silk-screen DIV2) position.

DIV1

DIV2

DIV4

Figure 13 - Clocking Mode 'Divide By 2’

To select the maximum data rate (460.8K bps) place the jumper in the divide by

1 (silk-screen DIV1) position.

DIV1

DIV2

DIV4

Figure 14 - Clocking Mode 'Divide By 1’

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Impulse 3440 Manual de usuario Pagina 13