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參數(shù)資料
| 型號(hào)： | MH88600 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Global SLIC Preliminary Information |
| 中文描述： | 全球用戶接口的初步信息 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 122K |
| 代理商： | MH88600 |
2-91
Preliminary Information
MH88600
Table 1: Impedance Matching with Jumpers
Note 1: The above impedances are as suggested by references: BS6305 (UK), REG3 (Australia), Proposed NET4, FCC Part 68 and
recommendations by the various Administrations. Confirm your impedance requirements before proceeding.
Note 2: All links to ZN1 should be as short as possible.
Table 2: Impedance Matching with External Components
Note 1: The above impedances are as suggested by reference CCITT Q.522. Confirm your impedance requirements before proceeding.
Note 2: For Rs, Rp & C calculations, G is set to 10, R is set to 5656.8
refer to figure 8 for additional information.
Table 3: Transmit and Receive Gain Programming
Note 1: See Figures 4 and 5 for additional details.
Note 2: Overall gain refers to the receive path of PCM to 2-Wire, and to transmit path of 2-Wire to PCM.
Zin Code
Zin 2-Wire Input Impedance
Administration
ZN1 Link to:
ZN8 Link to:
1
600
600
---
ZN7
---
2
UK
370
+ 620
// 310nF
United Kingdom
ZN6
ZN13
3
D
220
+ 820
// 310nF
Germany, Austria
ZN5
ZN12
4
NA
350
+ 1000
// 310nF
Canada, USA
ZN4
ZN11
5
F
210
+880
// 310nF
France
ZN3
ZN10
6
N
120
+ 820
// 310nF
Norway
ZN2
ZN9
7
A
220
+ 820
// 310nF
Australia
Use D Code
Use D Code
Zin Code
Zin 2-Wire Input Impedance
Administration
Rs
Rp
Cp
1
---
600
+ 2.1
6
μ
F
---
6k
1M
216nF
2
ATT
900
+ 2.16
μ
F
AT&T
9k
1M
216nF
3
NTT
600
+ 1.0
μ
F
NTT
6k
1M
100nF
4
NZ
370
+ (620
// 220nF)
New Zealand
3.7k
6.2k
22nF
Transmit Gain
(dB)
RTX Resistor
Value (
)
Notes
+5.62
270k
+4.0
No Resistor
Results in 0dB overall gain when used with Mitel A-law codec (ie MT8965)
+3.69
216k
Results in 0dB overall gain when used with Mitel
μ
-law codec (ie MT8964)
+2.1
180k
0.0
141k
-3.0
100k
Transmit Gain
(dB)
RTX Resistor
Value (
)
Notes
+6.6
33.1k
+0.0
70.7k
-3.0
100k
-3.69
108k
Results in 0dB overall gain when used with Mitel A-law codec (ie. MT8964)
4.0
No Resistor
Results in 0dB overall gain when used with Mitel
μ
-law codec (ie MT8965)
-6.5
150k
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