User manual

Back Panel Connectors
Airlab from D&R Phone [phone], email: [e-mail] Page 35
EXTERN IN/AIR IN
The next section shows the left and
right input Cinch connectors for the
EXTERNAL and AIR in signals.
FROM AIR is the stereo input for
controlling the off air signal coming
from a receiver. Input sensitivity is
either 0 dBu.
GUEST/ANNOUNCER
The next connectors on the right are
the stereo GUEST and
ANNOUNCER headphone outputs on
stereo jack sockets.
ON AIR 1/2
On the left side of these jacks are the
ON-AIR 1 and ON-AIR 2 jacks.
The ON-AIR signaling jacks are
connected to reed relays driven by
the logic of the input channels as described in the channel sections of this manual.
When using the channel in the DJ mode it is possible to operate and be an ANNOUNCER at the same
time.
If the DJ mic is ON or CUE’d, the CRM is automatically muted.
Modules can be connected via programming to the centralized ON-AIR signaling connector. We advise
you to use an externally connected solid-state relay. A suitable model is the
S 201-8 04 from Sharp, which switches 220 Volts/1.5 Amp click-free. A solid-state relay is much safer to
use and is more reliable. The ON-AIR 1/2 output can be connected directly to the S 201-8 04 relay in series
with an external 12-volt DC power supply.
Connector: Tip = Center contact (maximum 24V/50mA)
Ring = Normally open
Sleeve = Normally closed
NOTE:
These signaling outputs are only to be used for low voltage applications!