2N Helios IP Video Kit Installation Manual page 16

Caution
Connection of External Microphone
®
2N Helios IP Video Kit is equipped with an input for connection of an external
electret microphone on the MIC+ and MIC- terminals.
Caution
Connection of External Amplifier
®
2N Helios IP Video Kit is equipped with a line output for connection of an external
power amplifier on the LINE OUT+ and LINE OUT- terminals.
Connection of External Audio Source
®
2N Helios IP Video Kit is equipped with a line input for connection of an external
audio signal source (FM tuner, MP3 player, e.g.) on the LINE IN+ and LINE IN-
terminals.
Connection to Relay Output
is equipped with one galvanically isolated relay switch with N/O and N/C contacts on
the NC, NO and COM terminals. The relay function is programmable; refer to the
Configuration manual 2N® Helios IP
Warning
Connection to Digital Outputs
®
2N Helios IP Video Kit is equipped with two active 12V/650mA outputs on the
OUT1+- and OUT2+- terminals. The outputs are overload and short-circuit resistant.
The output function is programmable; refer to the
Manual
®
2N TELEKOMUNIKACE a.s., www.2n.cz
Never connect a loudspeaker with impedance lower than 4Ω to avoid
system damage.
Never exceed the maximum power output designated for the loudspeaker
to avoid loudspeaker destruction. Choose a loudspeaker with proper
impedance and maximum power values, or limit the maximum volume
level in the device configuration.
Undesired noise may be heard in the earphone where EMI affects the
microphone signal. To avoid this, connect the microphone using a shielded
cable of the minimum possible length.
Do not exceed the voltage and current limits for the load connected to the
relay contacts as specified in the technical parameters of the device to
avoid device damage.
for details.
for details.
®
2N Helios IP Configuration
16