2N Helios IP Video Kit - Manual (Page 24)

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2N TELEKOMUNIKACE a.s., www.2n.cz
®
Audio Interface
Microphone input: Standard electret microphone, Max. Vpp = 100 mV, Rin =
4,4 kΩ, Vbias = 1,5 V
Line input: Max. 755 mV RMS, Rin = 47 kΩ
Amplifier output: 10 W amplifier of class D, MONO output, THD < 1 %,
minimum loudspeaker impedance: 4 Ω
Line output: Max. 755 mV RMS, Rout = 600 Ω
Acoustic echo cancelling: AEC, full duplex
Button/Keypad Interface
Button count: Up to 16 separate buttons in 4×4 matrix
Button function: User programmable
Matrix outputs
4 (ROW1–4 terminals)
Uout < 0.1 V (L), Uout > 3.2 V (H), up to 8 mA
Matrix inputs
4 (COL1–4 terminals)
Uin < 1.15 (L), Uin > 2.15 V, max. Uin = 5 V
LED Control Outputs
Output count: 3 (LED1±, LED2 and LED3 terminals) ± ±
Output function: User programmable
Output current: Typ. 20 mA
Output voltage: Up to 12 V
Digital Outputs
Output count: 2 (OUT1 and OUT2 terminals) ± ±
Output function: User programmable
Output type: Power output with short-circuit protection
Output voltage
PoE power supply: 10 V DC
External power supply: Power supply voltage minus 2 V, maximum 11 V DC
Output current: Up to 400 mA
Digital Inputs
Input count: 2 (IN1 and IN2 terminals) ± ±
Input function: User programmable
Input type: Galvanically isolated inputs (opto-couplers)
Characteristics: Uin < 1.1 V (L), Uin > 3 V (H), max. Uin = 32 V