Bosch DCN Next Generation Installation & User's Instructions page 258

DCN Next Generation | Installation and User Instructions | Peripheral Devices
47.3.3 Mode
47.3.3. 1 Introduction
Set the mode of the data distribution board with the
S8-3 switch. The data distribution board can be:
• A passive unit that receives data from the central
control unit (passive mode).
• An active unit that also transmits data to the central
control unit (active mode).
47.3.3.2 Passive mode
You must put the data distribution board in the passive
mode when:
• You use data distribution board to send data to a hall
display.
• You use data distribution board for speak slowly or
help signaling.
• You only use the parallel outputs of the data
distribution board.
If the data distribution board is in the passive mode, you
must give it an address (refer to section 47.3.4). This
address defines the application of the data distribution
board. When you start the system for the first time, you
must push the de-init switch of the data distribution
board to send its address to the central control unit
(refer to section 8.7).
When you use the central control unit to erase the
addresses of all units (refer to section 8.7), you must not
push the de-init switch again. The central control unit
remembers the addresses of the passive data distribution
boards when it is started again.
table 47.4: Addresses
Address S8-6
248 0
249 1
250 0
251 1
252 0
253 1
254 0
255 1
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S8-7 S8-8 Description
0 0 Numeric display (refer to section 47.4.3).
0 0 Alpha-numeric display 1 (refer to section 47.4.3).
1 0 Alpha-numeric display 2 (refer to section 47.4.3).
1 0 Status display (e.g. synoptic display, refer to section 47.4.5).
0 1 Reserved
0 1 Speak slowly signaling (refer to section 47.5. 1 ).
1 1 Help signaling (interpreter booth 1 to 16, refer to section 47.5.2).
1 1 Help signaling (interpreter booth 17 to 31, refer to section
47.5.2).
47.3.3.3 Active mode
You must put the data distribution board in the active
mode when you use the parallel inputs of the data
distribution board.
Note
The maximum number of data distribution
boards in the system is 15.
If the data distribution board is in active mode, the
central control unit gives it an address. The system
ignores the passive mode address of the data
distribution board in the active mode (refer to section
47.3.4).
When you start the system for the first time, you must
push the de-init switch of the data distribution board to
obtain an address.
When you use the central control unit to erase the
addresses of all units (refer to section 8.7), you must
push the de-init switch again to obtain a new address.
The central control unit does not remember the
addresses of the active data distribution boards when it
is started again.
47.3.4 Addresses
If necessary, set the address of the data distribution
board with the S8-6, S8-7 and S8-8 switches. This
address is only used when the data distribution board is
in the passive mode (refer to section 47.3.3.2). The
address defines the application of the data distribution
board (refer to table 47.4).
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