參數(shù)資料
型號： ZL50015
廠商： Zarlink Semiconductor Inc.
英文描述： Enhanced 1 K Digital Switch with Stratum 4E DPLL
中文描述： 增強1K的數(shù)字交換與地層4E條數(shù)字鎖相環(huán)
文件頁數(shù)： 48/122頁
文件大小： 926K
代理商： ZL50015
ZL50015
Data Sheet
48
Zarlink Semiconductor Inc.
19.0 PCM A-law/
μ
-law Translation
The ZL50015 provides per-channel code translation to be used to adapt pulse code modulation (PCM) voice or
data traffic between networks which use different encoding laws. Code translation is valid in both Connection Mode
and Message Mode.
In order to use this feature the Connection Memory High (CM_H) entry for the output channel must be
programmed. V/D (bit 4) defines if the traffic in the channel is voice or data. Setting ICL1 - 0 (bits 3 - 2) programs the
input coding law and OCL1 - 0 (bits 1- 0) programs the output coding law as shown in Table 13.
The different code options are:
For voice coding options, the ITU-T G.711 A-law and ITU-T G.711
μ
-law are the standard rules for encoding. A-law
without Alternate Bit Inversion (ABI) is an alternative code that does not invert the even bits (6, 4, 2, 0).
μ
-law
without Magnitude Inversion (MI) is an alternative code that does not perform inversion of magnitude bits (6, 5, 4, 3,
2, 1, 0).
When transferring data code, the option “no code” does not invert the bits. The Alternate Bit Inversion (ABI) option
inverts the even bits (6, 4, 2, 0) while the Inverted Alternate Bit Inversion (ABI) inverts the odd bits (7, 5, 3, 1). When
the “All bits inverted” option is selected, all of the bits (7, 6, 5, 4, 3, 2, 1, 0) are inverted.
The input channel and output channel encoding law are configured independently. If the output channel coding is
set to be different from the input channel, the ZL50015 performs translation between the two standards. If the input
and output encoding laws are set to the same standard, no translation occurs. As the V/D (bit 4) of the Connection
Memory High (CM_H) must be set on a per-channel basis, it is not possible to translate between voice and data
encoding laws.
Input Coding
(ICL1- 0)
Output Coding
(OCL1 - 0)
Voice Coding
(V/D bit = 0)
Data Coding
(V/D bit = 1)
00
01
10
00
01
10
ITU-T G.711 A-law
ITU-T G.711
μ
-law
A-law without Alternate Bit
Inversion (ABI)
μ
-law without Magnitude
Inversion (MI)
No code
Alternate Bit Inversion (ABI)
Inverted Alternate Bit
Inversion (ABI)
All bits inverted
11
11
Table 13 - Input and Output Voice and Data Coding
相關(guān)PDF資料
PDF描述
ZL50015GAC Enhanced 1 K Digital Switch with Stratum 4E DPLL
ZL50015QCC Enhanced 1 K Digital Switch with Stratum 4E DPLL
ZL50015QCC1 Enhanced 1 K Digital Switch with Stratum 4E DPLL
ZL50018 2 K Digital Switch with Enhanced Stratum 3 DPLL
ZL50018GAC 2 K Digital Switch with Enhanced Stratum 3 DPLL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL50015_06 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 1 K Digital Switch with Stratum 4E DPLL
ZL50015GAC 制造商:Microsemi Corporation 功能描述:Switch Fabric 1K x 1K 1.8V/3.3V 256-Pin BGA Tray 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256BGA - Trays
ZL50015GAG2 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256BGA - Trays
ZL50015QCC 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256LQFP - Trays
ZL50015QCC1 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 1 K Digital Switch with Stratum 4E DPLL
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