Sonance Two Zone Connecting Block CB2Z User Manual
Page 3
Pg 3
Power Supply Requirement:
1. Most IR receivers draw 2 milliamps (mA) without signal and 10 mA with signal (check specs. on
actual model).
2. The maximum current for proper operation from the
PS1
Power Supply is 200 ma.
3. The maximum current for proper operation from the
PS2
Power Supply is 1000 ma.
4. When using combinations of receivers, do not exceed the maximum current ratings of the
power supplies as noted above.
For example, 6 IR receivers and 4 emitters could be used with one
PS1
Power Supply. If the current
of the
PS1
will be exceeded, use the
PS2
power supply instead.
NOTE:
To avoid current "hogging", never connect regulated supplies, such as the
PS1
and
PS2
, in parallel!
CAUTION:
D o not use unregulated 12V power supply adapters from other manufacturers. These
may deliver excessive voltage to the IR receivers and cause them to “latch-up”. When
this occurs, the “talkback” LEDs and
VE1
emitters (if used) will stay on continuously!
E M I T T T E R E X P A N S I O N
Fig. 4, below, shows the single common emitter port on the
CB2Z
connected to a
CB1
Connecting
Block (or an
ACB1
Amplified Connecting Block). Also, if you need to drive more than 4 signal emitters
from the common port, they must be driven by an ACBI Amplified Connecting Block.
Fig. 4: Using
CB1
for Emitter Expansion
NOTE:
No power supply is connected to the
CB1
! It is not needed when the
CB1
i
s
used strictly as an expansion block, as it is in this example. Also, if you need to drive
more than four single emitters from the COMMON port, they must be driven by an
ACB1
Amplified Connecting Block. See Fig. 5, next page.