DR4088RB
www.digikeijs.com
P 5
Connection
The DR4088RB is connected to the R-Bus
™
on the respective control unit as described in the control unit ma-
nual. The DR4088RB has 16 (!) feedback inputs. The DR4088RB can also be configured to only use only the first
8 inputs. In addition, the DR4088RB can be expanded with the standard DR4088 s88 modules. For this, the
DR4088RB must be configured in order to use up to a maximum of 80 inputs.
The ROCO
™
R-bus
™
is divided into two groups: group 0 and group 1. Group 1 includes module numbers from
1 to 10 and group 1 from 11 to 20. Fully using Digikeijs DR4088 modules would mean two DR4088RB (1 for
group 0 and 1 for group 1) and eight DR4088 s88 modules. This uses the entire feedback capacity (160 inputs) of
the R-Bus
™
. If you have a Z21
™
(black), the Digikeijs DR4088LN connected to the L-Bus of the Z21
™
offers the
possibility of using up to 2048 inputs.
Configuration
The DR4088RB can be configured with the Z21
™
maintenance program in the same way as the Roco
™
10787 modules.
The DR4088RB factory setting is module address 1 and 2 modules. If this is your first module on the R-Bus
™
you do not
need to configure anything. To connect further modules, follow this procedure:
1.
Module address:
2.
Connect only (!!!) the DR4088RB to the R-Bus
™
. The green LED next to the programming button blinks at a mode-
rate pace (on-off-on-off).
3.
Follow the procedure to program modules as described for the Roco
™
10787. Enter the module address.
4.
When the program asks you to disconnect the 10787, press the programming button on the DR4088RB. The green
LED will blink slower (long-off, short-on, long-off, short-on etc.)
5.
Continue with the procedure for assigning the module address. The control unit will now send addresses to the R
bus.
6.
When the DR4088RB receives its module address, the LED will return to its initial blinking frequency: on-off-on-off-
on-off etc.
7.
Finish the procedure for programming Roco
™
10787s.
If you have not connected a DR4088 s88 extension to the DR4088RB, the module is now ready for use.
1.
Multiple modules (optional, see above):
2.
Connect
only (!!!)
the DR4088RB to the R-Bus
™
. The green LED next to the programming button blinks at a mode-
rate pace (on-off-on-off).
3.
Follow the procedure to program modules as described for the Roco 10787.
4.
When the program asks you to disconnect the 10787 , press the programming button on the DR4088RB. The green
LED will blink slower (long-off, short-on, long-off, short-on etc.)
5.
Now press the button
again
. The green LED will blink at the same rate, but with a different pattern (long-on, short-
off, long-on, short-off etc.).
6.
Now enter the number of modules instead of the number for the module address. This number is the number of
connected inputs divided by two. For example, only one DR4088RB -> 2; 1 DR 1 DR4088 s88 -> 4; 1
DR 4 DR4088 s88 -> 10.
7.
Continue the procedure for assigning the module address. The control unit now sends the number of modules to
the R-Bus.
8.
When the DR4088RB has received the number of modules, the LED will return to its initial blinking frequency: on-off
-on-off-on-off etc.
9.
Finish the procedure for programming Roco
™
10787s.
**
ROCO, Z21 and MULTIMAUS
are trademarks which are registered in the name of Modelleisenbahn GmbH
