### RGDV Interface Assignments

Nothing should be programmed in this part if the generator is connected to a ‘Bucky Ctrl. 1/Dig. Diag.’ or ‘Thoravision’ system via system CAN.

Bucky/Tomo 1WA and/or 2WA

Decade Bucky 1 (X11) e.g. WAX11 and/or Decade Bucky 2 (X12) WAX12

Once a RGDV is programmed all functions of WAX11 or WAX12 are active, functions not provided by the system must be "simulated" with a short-link.

#### Tomo mode switch

disable = (default) no Bucky/Tomo remote switchover

enable = enables Bucky/Tomo remote switchover WAX11 or WAX12 pins 3-4, Bucky when open, tomo when closed

If 'enable' is programmed both Bucky-RGDV and Tomo-RGDV have to be programmed (switch related), if only one RGDV is set the generator hangs up

# Note

For a stand with only one remote switchover contact using the same set of tomo trajectory / times for cassette and DSI tomo (e.g. D96) it is sufficient to use one remote switch-over contact only.

#### Bucky RGDV - switch related *)

none = default

RGDV 1...8 *)

-side field selection for automatic collimators with Bucky chambers, pins 1-2
(closed if > 24x24 cm), density format size correction when programmed

if no automatic collimator present insert a link at pins 1-2 to allow the side field selection

- defines the Bucky RDGV for Bucky/Tomo remote switchover, if 'Tomo mode switch' is enabled, pins 3-4, (cassette tomo [DSI tomo] = closed, cassette [DSI] = open)

- activates the recognition of the Bucky Ready contact pins 9-10 (ready = closed)

*) three RGDV's can be programmed at the same Bucky Ready contact

#### Bucky RGDV *)

none = default

RGDV 1...8

-side field selection for automatic collimators with Bucky chambers, pins 1-2
(closed if > 24x24 cm), density format size correction when programmed

if no automatic collimator present insert a link at pins 1-2 to allow the side field selection

- defines the Bucky RDGV for Bucky/Tomo remote switchover, if 'Tomo mode switch' is enabled, pins 3-4, (cassette tomo [DSI tomo] = closed, cassette [DSI] = open)

- activates the recognition of the Bucky Ready contact pins 9-10 (ready = closed)

#### Tomo RGDV - switch related

none = default

RGDV 1...8

- side field selection for automatic collimators with Bucky chambers, pins 1-2

- defines the Tomo RDGV for Bucky/Tomo remote switchover, if 'Tomo mode switch' is enabled, pins 3-4, (Bucky tomo [DSI tomo] = closed, Bucky [DSI] = open)

- must be set to use option automatic input of tomo times,

- activates recognition of the Tomo Ready contact, pins 5-6, (ready = closed)

#### Tomo Time

Tomo numbers 1...8 can be programmed in the 'APR Data Set's. Programming the times makes only sense if option automatic input of tomo times 9890 000 0222x exists (programmed in the CU-function key D38, see STAMMKARTE).
Tomo numbers 1...8 are directly linked to the tomo trajectories WAX22 pins 1...8, while tomo times 1...8 are linked to the tomo time input WAX21 pins 1...8.
The times have to be programmed with times in-between 0.1 ... 6000 ms according to the table type.

***If tomo APRT's are programmed using option Automatic input of tomo times: Select every APRT once. For a very short time the default time of an APRT can be seen at the desk, then the tomo time contact might override the default time. This time must be saved using the desk save function: push and hold the RESET labeled button + active APRT. Now the programmed tomo time 1...8 is copied and saved at the APRT data set.
If it is not saved then the default APRT time will come up again if the APRT is pushed a second time or if an APRT with the same tomo time is selected.
The tomo time input only reacts to a high >> low transition of the time contact input.

-If tomo is programmed at 'RGDV Data Set A + B' it is not possible to change the exposure time at the desk. If APRT with the same tomo trajectory have to be corrected time dependent then an APRT with another tomo trajectory has to be selected. Afterwards select the APRT which has to be modified to get the high >> low time input response.

-It might happen that three tomo times can be seen at the desk after pushing an APRT button: At first the APR time is displayed. The second time might be tomo time number 1, as long as all time input contacts of the tomo stand are open. If then any tomo time contact is closed, the status change will cause the display of the programmed tomo time.