Cisco TelePresence System Codec C90 매뉴얼 - 페이지 19
{카테고리_이름} Cisco TelePresence System Codec C90에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Cisco TelePresence System Codec C90 25 페이지. Telepresence system
Cisco TelePresence System Codec C90에 대해서도 마찬가지입니다: 사용자 설명서 (44 페이지), 시작하기 매뉴얼 (42 페이지), 문제 해결 매뉴얼 (37 페이지), 설치 매뉴얼 (2 페이지), 사용자 설명서 (48 페이지), 시작하기 매뉴얼 (46 페이지)
페이지 인쇄
Cisco TelePresence System Codec C90
Contents
Audio signal levels tables
Microphone Inputs 1 to 8
XLR female
Signal
Clipping level
Nominal
levels
level
Level
setting
[dB]
[mVpp]
[dBu]
[dBu]
0.0
275.0
-18.0
1.0
245.1
-19.0
2.0
218.4
-20.0
3.0
194.7
-21.0
4.0
173.5
-22.0
5.0
154.6
-23.0
6.0
137.8
-24.0
7.0
122.8
-25.0
8.0
109.5
-26.0
9.0
97.6
-27.0
10.0
87.0
-28.0
11.0
77.5
-29.0
12.0
69.1
-30.0
13.0
61.6
-31.0
14.0
54.9
-32.0
15.0
48.9
-33.0
16.0
43.6
-34.0
17.0
38.8
-35.0
18.0
34,6
-36.0
19.0
30,9
-37.0
20.0
27,5
-38.0
21.0
24,5
-39.0
22.0
21,8
-40.0
23.0
19,5
-41.0
24.0
17,4
-42.0
This specification is valid for Mic 1–8 inputs
if Microphone Level setting is selected.
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
D14644.03 Codec C90 Physical Interface Guide TC4.1, February 2011.
© 2010-2011 Cisco Systems, Inc. All rights reserved.
Introduction
Line Inputs 1 to 8
XLR female
Signal
Clipping level
levels
Level
setting
[dB]
[Vpp]
[dBu]
-36.0
0.0
34.7
24.0
-37.0
1.0
31.0
23.0
-38.0
2.0
27.6
22.0
-39.0
3.0
24.6
21.0
-40.0
4.0
21.9
20.0
-41.0
5.0
19.5
19.0
-42.0
6.0
17.4
18.0
-43.0
7.0
15.5
17.0
-44.0
8.0
13.8
16.0
-45.0
9.0
12.3
15.0
-46.0
10.0
11.0
14.0
11.0
9.8
13.0
-47.0
12.0
8.7
12.0
-48.0
13.0
7.8
11.0
-49.0
-50.0
14.0
6.9
10.0
-51.0
15.0
6.2
-52.0
16.0
5.5
-53.0
17.0
4.9
-54.0
18.0
4,4
-55.0
19.0
3,9
-56.0
20.0
3,5
-57.0
21.0
3,1
-58.0
22.0
2,8
-59.0
23.0
2,5
-60.0
24.0
2,2
This specification is valid for Line 1–8 inputs
if Line Level setting is selected.
Connecting to the codec
Line outputs 5 to 6
XLR male
Nominal
Signal
Absolute max
level
levels
output level
Level
setting
[dBu]
[dB]
[Vpp]
6.0
-24.0
2,2
5.0
-23.0
2,5
4.0
-22.0
2,8
3.0
-21.0
3,1
2.0
-20.0
3,5
1.0
-19.0
3,9
0.0
–18.0
4.4
-1.0
–17.0
4.9
-2.0
–16.0
5.5
-3.0
–15.0
6.2
-4.0
–14.0
6.9
-5.0
–13.0
7.8
-6.0
–12.0
8.7
-7.0
–11.0
9.8
–10.0
11.0
-8.0
–9.0
12.4
9.0
-9.0
–8.0
13.9
8.0
-10.0
–7.0
15.6
7.0
-11.0
–6.0
17.5
6.0
-12.0
–5.0
19.6
5.0
-13.0
–4.0
22.0
4.0
-14.0
–3.0
24.7
3.0
-15.0
–2.0
27.7
2.0
-16.0
–1.0
31.0
1.0
-17.0
0.0
34.8
0.0
-18.0
19
Physical interface guide
The physical interface
The physical interface
Line Inputs 1 to 4
Female RCA/phone
Nominal
Signal
Clipping level
level
levels
Level
setting
[dBu]
[dBu]
[dB]
[Vpp]
0.0
-18.0
0.0
1.0
-17.0
1.0
2.0
-16.0
2.0
3.0
-15.0
3.0
4.0
-14.0
4.0
5.0
-13.0
5.0
6.0
-12.0
6.0
7.0
-11.0
7.0
8.0
-10.0
8.0
9.0
-9.0
9.0
10.0
-8.0
10.0
11.0
-7.0
11.0
12.0
-6.0
12.0
13.0
-5.0
13.0
14.0
-4.0
14.0
15.0
-3.0
15.0
16.0
-2.0
16.0
17.0
-1.0
17.0
18.0
0.0
18.0
19.0
1.0
19.0
20.0
2.0
20.0
21.0
3.0
21.0
22.0
4.0
22.0
23.0
5.0
23.0
24.0
6.0
24.0
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Nominal
level
[dBu]
[dBu]
17.4
18.0
0.0
15.5
17.0
-1.0
13.8
16.0
-2.0
12.3
15.0
-3.0
11.0
14.0
-4.0
9.8
13.0
-5.0
8.7
12.0
-6.0
7.8
11.0
-7.0
6.9
10.0
-8.0
6.2
9.0
-9.0
5.5
8.0
-10.0
4.9
7.0
-11.0
4.4
6.0
-12.0
3.9
5.0
-13.0
3.5
4.0
-14.0
3.1
3.0
-15.0
2.8
2.0
-16.0
2.5
1.0
-17.0
2,2
0.0
-18.0
2,0
-1.0
-19.0
1,7
-2.0
-20.0
1,6
-3.0
-21.0
1,4
-4.0
-22.0
1,2
-5.0
-23.0
1,1
-6.0
-24.0
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