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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:
Do 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!
EMITTTER EXPANSION
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 is
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.