- ページ 19
会議システム Cisco TelePresence System Codec C90のPDF マニュアルをオンラインで閲覧またはダウンロードできます。Cisco TelePresence System Codec C90 25 ページ。 Telepresence system
Cisco TelePresence System Codec C90 にも： ユーザーマニュアル (44 ページ), スタートマニュアル (42 ページ), トラブルシューティングマニュアル (37 ページ), 設置マニュアル (2 ページ), ユーザーマニュアル (48 ページ), スタートマニュアル (46 ページ)
ページを印刷する
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
Contact us
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
www.cisco.com