Specifications

B&K Components Device Interface Protocol (BKC-DIP) Specification
Version 2.01.00
Updated 01/24/07
Page 21 of 54
Z13 C
Z14 D
Z15 E
Z16 F
Viewing the previous Group and Code Set/Zone ID assignments there are 9 Logical Zones: Zone
0 (Whole House), Zone 3, Zone 4 and Zones 11 through Zone 16. Also, note that there is always
an implicit “Whole House” Zone, numbered Zone 0, which combines all Hardware Zones into a
single Logical Zone.
Note, Logical Zone 11 controls Hardware Zone A, however, Hardware Zone A is also part of
Logical Zone 3, and Logical Zone 0.
When referring to Logical Zone 3 in this example, Hardware Zones A, B, C and D are Grouped
(linked) together by a common Code Set. Thus with the above settings, changing the volume in
Logical Zone 3 will change the volume in Hardware Zones (A-D). However, changing the
volume in Logical Zone 13, for example, will only change the volume on Hardware Zone C.
When referring to Logical Zone 4 in this example, Hardware Zones E and F are Grouped (linked)
together via a common Code Set of 4. Thus with the above settings, changing the volume in
Logical Zone 4 will change the volume in Hardware Zones (E and F). However, changing the
volume in Logical Zone 15, for example, will only change the volume on Hardware Zone E.
Changing the volume in Logical Zone 0 changes the volume in all Hardware Zones regardless of
Code Set/Zone ID setup.
More Complicated CT 610 Example
Let’s take another example with a more complicated Code Set/Zone ID configuration to further
clarify some points regarding Logical Zones:
Hardware
Zone
Group Code Set
(Zone ID)
A.L 0 (group 0), 17 (group a), 1 (group d)
A.R 0 (group 0), 16 (group b), 12 (group h)
B 0 (group 0), 16 (group b), 3 (group e), 27 (group i)
C 0 (group 0), 16 (group b), 3 (group e), 27 (group i)
D.L 0 (group 0), 16 (group b), 4 (group f), 27 (group i)
D.R 0 (group 0), 16 (group b), 27 (group i), 35 (group g)
E 0 (group 0), 22 (group c), 35 (group g)
F 0 (group 0), 22 (group c), 35 (group g)
Given the above Group and Code Set/Zone ID configuration yields the following Logical Zones
and their associated Hardware Zone members:
Logical
Zone
Hardware Zone members
Z0 A.L, A.R, B, C, D.L, D.R, E, and F
Z1 A.L
Z3 B and C
Z4 D.L