Bosch DCN Next Generation Installation And Operation Manual page 107

Conference System
The length (x) of a recess depends on the total number-size factor (NSF) of the flush-mounted
devices that must be installed in the recess. To calculate the length of a recess:
–
–
–
NOTICE!
Install DCN-FEC End Caps on the couple pieces at the two ends of the recess.
Total NSF
1
2
3
4
5
6
7
8
9
10
11
12
Table 5.2 Lengths, block-mounting method
Number-size factor
The length of a recess depends on:
–
–
To calculate the length of a recess, you must use the number-size factor (NSF, refer the table)
of the flush-mounted devices.
Flush-mounted device
DCN-FCS
DCN-FLSP
DCN-FMIC
DCN-FMICB
DCN-FPRIOB
DCN-FV
DCN-FVCRD
DCN-FVU
DCN-FVU-CN
Table 5.3 Number-size factors
Bosch Security Systems B.V.
For each flush-mounted device, get the number-size factor (NSF) from Table 5.3.
Add the NSFs of the flush-mounted devices to get the total NSF.
Use the total NSF to get the length (x) of the recess from the table. The length includes
the DCN-FCOUP couple pieces.
x (mm)
71.5
121.5
171.5
221.5
271.5
321.5
371.5
421.5
471.5
521.5
571.5
621.5
The number of flush-mounted devices that are installed in the recess.
The size of the flush-mounted devices that are installed in the recess.
NSF
2
2
1
1
1
2
2
2
2
Installation and Operation manual
Installation | en 107
DCN-NG_IOM_V4.1 | V1.3 | 2012.07