Omega Vehicle Security OMG-ULTRACOMM2-PCI RS-232 - Manual (Page 11)

Card Setup
Omega Engineering OMG-ULTRA COMM+2.PCI Page 7
Clock Modes
The OMG-ULTRA COMM+2.PCI 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 8 - 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 9 - 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 10 - Clocking Mode 'Divide By 1’