參數(shù)資料
型號(hào): MT9076
廠商: Mitel Networks Corporation
英文描述: T1/E1/J1 3.3V Single Chip Transceiver(T1/E1/J1 3.3V 單片收發(fā)器)
中文描述: T1/E1/J1收發(fā)3.3V的單芯片收發(fā)器(T1/E1/J1收發(fā)3.3單片收發(fā)器)
文件頁數(shù): 52/162頁
文件大?。?/td> 427K
代理商: MT9076
MT9076
Preliminary Information
48
12.0 Loopbacks
In order to meet PRI Layer 1 requirements and to assist in circuit fault sectioning, the MT9076 has six loopback
functions. These are as follows:
a) Digital loopback (DSTi to DSTo at the framer/LIU interface). Bit DLBK = 0 normal; DLBK = 1 activate.
b) Remote loopback (RTIP and RRING to TTIP and TRING respectively at the Line side). Bit RLBK = 0 normal;
RLBK = 1 activate.
MT9076
c) ST-BUS loopback (DSTi to DSTo at the system side). Bit SLBK = 0 normal; SLBK = 1 activate.
d) Payload loopback (RTIP and RRING to TTIP and TRING respectively at the system side). Bit PLBK = 0
normal; PLBK = 1 activate. The payload loopback is effectively a physical connection of DSTo to DSTi
within the MT9076. Sbit information and the DL originate at the point of loopback.
e) Metallic Loopback. MLBK = 0 normal; MLBK = 1 activate, will isolate the external signals RTIP and RRING
from the receiver and internally connect the analog output TTIP and TRING to the receiver analog input.
f) Per time slot local and remote loopback. Remote time slot loopback control bit RTSL = 0 normal; RTSL = 1
activate, will loop around transmit ST-BUS time slots to the DSTo stream. Local time slot loopback bits LTSL
= 0 normal; LTSL = 1 activate, will loop around receive PCM 30 time slots towards the remote PCM 30 end.
The digital, remote, ST-BUS, payload and metallic loopbacks are located on page 1, address 15H - Coding and
Loopback Control Word. The remote and local time slot loopbacks are controlled through control bits 5 and 4 of
the Per Time Slot Control Words, pages 7H and 8H.
MT9076
Tx
DSTi
DSTo
System
Line
Tx
DSTo
System
Line
Rx
MT9076
Tx
DSTi
DSTo
System
Line
MT9076
Tx
DSTi
DSTo
System
Line
Rx
MT9076
Tx
DSTi
DSTo
System
Line
Rx
MT9076
Tx
DSTi
DSTo
System
Line
Rx
相關(guān)PDF資料
PDF描述
MT9079 Advanced Controller for E1(先進(jìn)的E1幀調(diào)節(jié)器和控制器)
MT9080B SMX - Switch Matrix Module(用于消費(fèi)類轉(zhuǎn)換應(yīng)用的開關(guān)矩陣模塊)
MT90810 Flexible MVIP(Multi-Vendor Integration Protocol) Interface Circuit(彈性MVIP接口電路)
MT90812 Integrated Digital Switch (IDX)(集成數(shù)字開關(guān))
MT90840AK Distributed Hyperchannel Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT9076AB 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:T1/E1/J1 3.3V Single Chip Transceiver
MT9076AP 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:T1/E1/J1 3.3V Single Chip Transceiver
MT9076B 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:T1/E1/J1 3.3 V Single Chip Transceiver
MT9076BB 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/J1/T1 3.3V 80LQFP - Trays
MT9076BB1 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/J1/T1 3.3V 80LQFP - Trays