參數(shù)資料
型號： TNET3001
廠商： Texas Instruments, Inc.
英文描述： SONET STS-1 Overhead Terminator(SONET STS-1附加終端)
中文描述： SONET的STS - 1的開銷終結(jié)者（SONET的STS - 1的附加終端）
文件頁數(shù)： 44/49頁
文件大?。?/td> 1090K
代理商： TNET3001
TNETS3001
SONET STS-1 OVERHEAD TERMINATOR
SDNS007B – OCTOBER 1993 – REVISED JUNE 1995
44
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
terminal-side interface (continued)
The terminal-side interface supports the following modes:
MODE
SELECTION
DESCRIPTION
S i l STS1
Serial STS1 pass
through
PARA = 0
RXRTM = 1
SPE = 0
RCLK = 0, 1
RTDO is serial nonretimed STS-1 data with all TOH bytes from the line input or RAM.
TPDO7–TPDO0 is parallel STS-1 data with all TOH bytes from the line input or RAM.
RSPE is nominally: low width = 24, high width = 696; increment: low width = 32, high width = 688;
decrement: low width = 16, high width = 704.
RSYN is high during the C1 and J1 bytes. Numbers are clock periods.
TTCI and TTDI are used as terminal STS-1 inputs in the transmit direction.
TPCI and TPDI 7–TPDI0 are ignored.
TSPE and TSYN are ignored.
All TOH bytes can be inserted to/extracted from the terminal.
The E1 byte can be used for AIS communication.
Transmit-side alarms and performance monitors are enabled.
RTCO and TPCO are derived from RLCI.
Parallel STS1
pass through
ll l STS1
ll l STS1
ll l STS1
PARA = 1
RXRTM = 1
SPE = 0
RCLK = 0, 1
RTDO is serial nonretimed STS-1 data with all TOH bytes from the line input or RAM.
TPDO7–TPDO0 is parallel STS-1 data with all TOH bytes from the line input or RAM.
RSPE is nominally: low width = 3, high width = 87; increment: low width = 4, high width = 86;
decrement: low width = 2, high width = 88.
RSYN is high during the C1 and J1 bytes. Numbers are clock periods.
TTCI and TTDI are ignored.
TPCI and TPDI7–TPDI0 are used as terminal STS-1 inputs in the transmit direction.
TSPE and TSYN are ignored.
All TOH bytes can be inserted to/extracted from the terminal.
The E1 byte can be used for AIS communication.
Transmit-side alarms and performance monitors are enabled.
RTCO and TPCO are derived from RLCI.
S i l SPE
Serial SPE only
PARA = 0
RXRTM = 0
SPE = 1
RTDO is serial retimed SPE-only data with only the A1, A2, E1, H1, and H2 bytes inserted into the
terminal data.
TPDO7–TPDO0 consists of all zeros data.
RSPE is nominally: low width = 1, high width = 29; increment: low width = 1, high width = 45; decrement:
low width = 1, high width = alternate 22, 23.
RSYN is high during the J1 byte. Numbers are clock periods.
TTCI, TTDI, TSPE, and TSYN are used as the terminal SPE-only inputs.
TPCI and TPDI 7–TPDI0 are ignored.
TSPE and TSYN are used.
No TOH byte can be inserted to/extracted from the terminal.
The terminal E1 byte can be used for AIS communication only.
Transmit-side alarms and performance monitors are disabled.
RCLK = 0
RTCO and TPCO are derived from RLCI.
RCLK = 1
RTCO and TPCO are derived from TLCI.
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