TANDBERG D14128.02 Audio signal levels, cont, Audio hardware information table, Volume control

Codec C90 System Integrator Guide

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Audio signal levels, cont...

Line outputs 1 to 4

Female RCA/phone

Signal	Absolute max		Nominal
levels	output level		level
Level
setting
[dB]	[Vpp]	[dBu]	[dBu]
-18.0	2.2	0.0	-18.0
-17.0	2.5	1.0	-17.0
-16.0	2.8	2.0	-16.0
-15.0	3.1	3.0	-15.0
-14.0	3.5	4.0	-14.0
-13.0	3.9	5.0	-13.0
-12.0	4.4	6.0	-12.0
-11.0	4.9	7.0	-11.0
-10.0	5.5	8.0	-10.0
-9.0	6.2	9.0	-9.0
-8.0	6.9	10.0	-8.0
-7.0	7.8	11.0	-7.0
-6.0	8.7	12.0	-6.0
-5.0	9.8	13.0	-5.0
-4.0	11.0	14.0	-4.0
-3.0	12.3	15.0	-3.0
-2.0	13.8	16.0	-2.0
-1.0	15.5	17.0	-1.0
0.0	17.4	18.0	0.0

Audio hardware information table

Hardware Information

	Mic 1–8 *	Line in 1–8 **		Line out 5–6	Line in 1–4	Line out 1–4
Signal type	Balanced	Balanced		Balanced	Unbalanced	Unbalanced
Connector (codec)	XLR-F	XLR-F		XLR-M	Female RCA/phono	Female RCA/phono
Input impedance	8100 Ohm (pin 2–3)	10k Ohm (pin 2–3)			10 k Ohm
Output impedance				50 Ohm		100 Ohm
Max input level when set to Min input level	–18dBu/275mVpp	24dBu/34.7Vpp			18dBu/17.4Vpp
Max input level when set to Max input level	–36dBu/35mVpp	6dBu/4.4Vpp			0.0dBu/2.2Vpp
Max output level when set to Min output level				6dBu/4.4Vpp		0dBu/2.2Vpp
Max output level when set to Max output level				24dBu/34.8Vpp		18dBu/17.4Vpp
Gain range			<– 18dB (18 steps of 1dB) –>
Phantom power	48 Volt +/- 2%
Phantom power resistor pin 1	6800 Ohm
Phantom power resistor pin 2	6800 Ohm
Max phantom power current (per mic)	14mA

*This specification is valid for Mic 1–8 inputs if Microphone Level setting is selected

**This specification is valid for Line 1-8 inputs if Line Level setting is selected

Volume control table

Volume control

Ring tone volume* Audio gain value

Notes:

1.Default levels are marked with white text on black

2.For the dBu value for input clipping level and absolute max output level, a sine waveform is assumed

3.If numbers in dBV are required, dBV value is 2.2 dB lower than the dBu value. Example: -10 dBu equals -12.2 dBV

0	0
1	-34.5 dB
70	0.0 dB

10015.0 dB

*The ring tone volume which is displayed on screen, when using the TRC5 remote control, goes from 0 to 20.

D14128.02—NOVEMBER 2008 27