參數(shù)資料
型號(hào)： MT9074AL
廠商： Mitel Networks Corporation
英文描述： T1/E1/J1 Single Chip Transceiver
中文描述： T1/E1/J1收發(fā)單芯片收發(fā)器
文件頁(yè)數(shù)： 34/122頁(yè)
文件大?。?/td> 372K
代理商： MT9074AL
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MT9074
Advance Information
34
will
synchronization is acquired.
become
unfrozen
when
multiframe
When the CAS signalling interrupt is unmasked
(page 01H, address 1EH, SIGI=0), pin IRQ (pin 12 in
PLCC, 85 in MQFP) will become active when a
signalling nibble state change is detected in any of
the 30 receive channels.
In CCS mode the data transmit on channel 16 is
either sourced from channel 16 data on DSTi or from
the pin CSTi. Data received from channel 16 is
clocked out on CSTo (pin 5 in PLCC, pin 70 in
MQFP). By dividing down the extracted 2.048 MHz
clock.
Loopbacks
In order to meet PRI Layer 1 requirements and to
assist in circuit fault sectioning, the MT9074 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 DS1 side). Bit RLBK = 0
normal; RLBK = 1 activate.
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 MT9074. 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) Local and remote time slot 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.
Performance Monitoring
Error Counters
In T1 mode, MT9074 has eight error counters, which
can be used for maintenance testing, an ongoing
measure of the quality of a DS1 link and to assist the
designer in meeting specifications such as TR62411
and T1.403. All counters can be preset or cleared by
writing to the appropriate locations.
MT9074
Tx
DSTi
DSTo
System
DS1
MT9074
Tx
DSTo
System
DS1
Rx
MT9074
Tx
DSTi
DSTo
System
DS1
MT9074
Tx
DSTi
DSTo
System
DS1
Rx
MT9074
Tx
DSTi
DSTo
System
DS1
Rx
MT9074
Tx
DSTi
DSTo
System
DS1
Rx
相關(guān)PDF資料
PDF描述
MT9074AP T1/E1/J1 Single Chip Transceiver
MT9074 T1/E1/J1 Single Chip Transceiver(T1/E1/J1單片收發(fā)器)
MT9075B E1 Single Chip Transceiver
MT9075B E1 Single Chip Transceiver(E1單片收發(fā)器)
MT9075 E1 Single Chip Transceiver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT9074AL1 制造商:Microsemi Corporation 功能描述:FRAMER E1/J1/T1 5V 100MQFP - Trays
MT9074AP 制造商:Microsemi Corporation 功能描述:
MT9074AP1 制造商:Microsemi Corporation 功能描述:T1/E1/J1 SGLE CHIP XSCR 制造商:Microsemi Corporation 功能描述:FRAMER E1/J1/T1 5V 68PLCC - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX SGL T1/E1 68PLCC 制造商:Microsemi Corporation 功能描述:IC TXRX SGL T1/E1 68PLCC
MT9074APR 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:T1/E1/J1 Single Chip Transceiver
MT9074APR1 制造商:Microsemi Corporation 功能描述:FRAMER E1/J1/T1 5V 68PLCC - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/J1/T1 5V 68PLCC - Tape and Reel
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