HACS logo Welcome to Home Automation Control Systems's Home Page

AB8SS Automated Speaker Switcher Specifications

Power supply:

about 12vac or vdc @500ma
with 2.1x5mm coax plug (supplied)


Amplifier connection:

4 wire from each of 2 sources (thus A/B)
is connected through a relay to an internal bus
that any one of eight speakers can be connected to.
If A amp is connected to bus
then B amp is totally isolated from any speaker or A amp.
If B is selected then visa versa.


Serial:

RS232 requires db9 pin male/female cable
DB9 female DB9 male
pin 2 to pin 2
pin 3 to pin 3
pin 5 to pin 5


IR:

UP TO 256 DIFFERENT TRANSMITTERS WITH UP TO 256 KEYS
(HEXADECIMAL 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F)
XX=TRANSMITTER ADDRESS
YY=KEY CODE
ALL RELAYS = 1 TO 8

IR Default selection (run "Config AB8SS" to change)

XX YY XX YY
IR ALL RELAYS ON= 01 02 OFF= 01 03
IR A/B RELAY B = 01 06 A = 01 07
IR #1 RELAY ON= 01 01 OFF= 01 14
IR #2 RELAY ON= 01 00 OFF= 01 05
IR #3 RELAY ON= 01 04 OFF= 01 09
IR #4 RELAY ON= 01 08 OFF= 01 0D
IR #5 RELAY ON= 01 0C OFF= 01 11
IR #6 RELAY ON= 01 10 OFF= 01 19
IR #7 RELAY ON= 01 18 OFF= 01 1D
IR #8 RELAY ON= 01 1C OFF= 01 15

X10:

X10 Default codes (run "Config AB8SS" to change)
X10 ALL RELAYS HOUSE= E UNIT= 1 ON= ALL OUTPUTS ON OFF= ALL OUTPUTS OFF
X10 A/B RELAY HOUSE= E UNIT= 2 ON= B INPUT SELECT OFF= A INPUT SELECT
X10 #1 RELAY HOUSE= F UNIT= 1 ON=#1 OUTPUT ON OFF= #1 OUTPUT OFF
X10 #2 RELAY HOUSE= F UNIT= 2 ON=#2 OUTPUT ON OFF= #2 OUTPUT OFF
X10 #3 RELAY HOUSE= F UNIT= 3 ON=#3 OUTPUT ON OFF= #3 OUTPUT OFF
X10 #4 RELAY HOUSE= F UNIT= 4 ON=#4 OUTPUT ON OFF= #4 OUTPUT OFF
X10 #5 RELAY HOUSE= F UNIT= 5 ON=#5 OUTPUT ON OFF= #5 OUTPUT OFF
X10 #6 RELAY HOUSE= F UNIT= 6 ON=#6 OUTPUT ON OFF= #6 OUTPUT OFF
X10 #7 RELAY HOUSE= F UNIT= 7 ON=#7 OUTPUT ON OFF= #7 OUTPUT OFF
X10 #8 RELAY HOUSE= F UNIT= 8 ON=#8 OUTPUT ON OFF= #8 OUTPUT OFF

X10 control requires optional TW-523 and
modular cable (6x4) required (inverse)




Resistance impedance matching information:

Number of speakers selected= 1 2 3 4 5 6 7 8
Ohm load seen by amplifier= 8.49 4.98 4.13 3.96 4.05 4.27 4.85 4.92
% power to speakers= 94 80 64 50 40 31 29 20
max power internal resistors 10 20 30 40 50 60 70 80
max power speakers 156 80 53 40 33 27 29 20
max power from AMP 166 100 83 80 83 87 98 100


Write for more information: