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參數(shù)資料
| 型號： | TLIU04C1 |
| 英文描述： | TLIU04C1 Quad T1/E1 Line Interface |
| 中文描述： | TLIU04C1四T1/E1線路接口 |
| 文件頁數(shù)： | 66/100頁 |
| 文件大?。?/td> | 1321K |
| 代理商： | TLIU04C1 |
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Advance Data Sheet, Rev. 2
TLIU04C1 Quad T1/E1 Line Interface
April 1999
66
Lucent Technologies Inc.
Direct Logic Control Mode
(continued)
System Interface Pin Options
The system interface can be configured to operate in a number of different modes. The different modes change the
functionality of the system interface pins, as shown in Table 40. Dual-rail or single-rail operation is possible using
the DUAL control pin (pin 112). Dual-rail mode is enabled when DUAL = 1; single-rail mode is enabled when
DUAL = 0. In dual-rail operation, data received from the line interface on RTIP and RRING appears on RPD and
RND at the system interface and data transmitted from the system interface on TPD and TND appears on TTIP and
TRING at the line interface. In single-rail operation, data received from the line interface on RTIP and RRING
appears on RDATA at the system interface and data transmitted from the system interface on TDATA appears on
TTIP and TRING at the line interface.
In single-rail mode only, TND is not needed for data and is used for controlling the B8ZS/HDB3 encoding/decoding.
The coding may be selected by pulling the CODE pins high. RND is also not needed for data in single-rail mode,
and is used for indicating bipolar violations. When a coding violations occurs, the BPV pin is asserted according to
the ALM setting (pin 114).
Table 40. System Interface Pin Mapping
Configuration
Single-rail mode (DUAL = 0)
Dual-rail mode (DUAL = 1)
RPD/RDATA
RDATA
RPD
RND/BPV
BPV
RND
TPD/TDATA
TDATA
TPD
TND/CODE
CODE
TND
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