User guide
Charnwood Dynamics Ltd. Coda cx1 User Guide – Coda Basics I - 1
CX1 USER GUIDE - COMPLETE.doc 26/04/04
29/162
8-Marker Drive Boxes
The 8-marker drive boxes can be powered either internally with rechargeable cells or
externally from a 5 volt power pack. Each drive box has 8 small sockets into which
individual markers can be plugged. A hex switch on the 8-marker drive box allows the
operator to select which group of 8-marker identification numbers will apply to the markers
connected to that box. Up to 56 markers can be used at any one time. The 8-marker
drive box switch settings are shown below:
Primary Settings:
1 2 3 4 Coda Mode Acquisition Rate (max)
1 - 8 12/28/56* 400/200/100Hz*
9 - 16 28/56 200/100HZ
17 - 24 28/56 200/100Hz
25 - 32 56** 100Hz**
33 - 40 56 100Hz
41 - 48 56 100Hz
49 - 56 56 100Hz
Secondary Settings:
1 2 3 4 Coda Mode Acquisition Rate (max)
NOT USED
5 - 12 12/28/56 400/200/100Hz.
13 - 20 28/56 200Hz max.
21 - 28 28/56 200Hz max.
29 - 36 56 100Hz max.
37 - 44 56 100Hz max.
45 - 52 56 100Hz max.
NOT USED
If any markers are connected above the maximum number allowed at the selected Coda
acquisition rate, they will interefere with lower-number markers in an unpredictable way –
the drive boxes are not automatically disabled if Coda is operating at too high a rate for
the selected marker number range.
* If a 1-8 drive box is used at 800Hz (with markers 1-6), the markers will be visible in
alternate epochs only. (And if markers 7 or 8 are connected, they will interfere with other
markers (marker 8 may appear as marker 1 in the other alternate epochs).)
** If a 25-32 drive box is used at 200Hz (with markers 25-28), the markers will be visible in
alternate epochs only. (And if Markers 29-32 are connected, they will interfere with other
markers.)