參數(shù)資料
型號: T7630
廠商: Lineage Power
英文描述: Dual T1/E1 5.0 V Short-Haul Terminator (Terminator-II)(雙 T1/E1 5.0V短距離通信終端器)
中文描述: 雙T1/E1的5.0V的短途終結(jié)者(終結(jié)者-Ⅱ)(雙個T1/E1 5.0V短距離通信終端器)
文件頁數(shù): 64/210頁
文件大?。?/td> 3075K
代理商: T7630
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁當(dāng)前第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁第206頁第207頁第208頁第209頁第210頁
Preliminary Data Sheet
October 2000
T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator II)
64
L Lucent Technologies Inc.
Frame Formats
(continued)
CEPT Time Slot 0 CRC-4 Multiframe Structure
The CRC-4 multiframe is in bit 1 of each NOT FAS frame. As described in ITU Rec. G.704 Section 2.3.3.1, where
there is a need to provide additional protection against simulation of the frame alignment signal, and/or where there
is a need for an enhanced error monitoring capability, then bit 1 of each frame may be used for a cyclic redundancy
check-4 (CRC-4) procedure as detailed below. The allocation of bits 1—8 of time slot 0 of every frame is shown in
Table 32 for the complete CRC-4 multiframe.
Table 32. ITU CRC-4 Multiframe Structure
Notes:
C1 to C4 = cyclic redundancy check-4 (CRC-4) bits.
E = CRC-4 error indication bits.
Sa4 to Sa8 = spare bits.
A = remote frame alarm (RFA) bit (active-high); referred to as the A bit.
The CRC-4 multiframe consists of 16 frames numbered 0 to 15 and is divided into two eight-frame submultiframes
(SMF), designated SMF-I and SMF-II that signifies their respective order of occurrence within the CRC-4 multi-
frame structure. The SMF is the CRC-4 block size (2048 bits). In those frames containing the frame alignment sig-
nal (FAS), bit 1 is used to transmit the CRC-4 bits. There are four CRC-4 bits, designated C1, C2, C3, and C4 in
each SMF. In those frames not containing the frame alignment signal (NOT FAS), bit 1 is used to transmit the 6-bit
CRC-4 multiframe alignment signal and two CRC-4 error indication bits (E). The multiframe alignment signal is
defined in ITU Rec. G.704 Section 2.3.3.4, as 001011. Transmitted E bits should be set to 0 until both basic frame
and CRC-4 multiframe alignment are established. Thereafter, the E bits should be used to indicate received errored
submultiframes by setting the binary state of one E bit from 1 to 0 for each errored submultiframe. The received E
bits will always be taken into account, by the receive E-bit processor
*
, even when the SMF that contains them is
found to be errored. In the case where there exists equipment that does not use the E bits, the state of the E bits
should be set to a binary 1 state.
* The receive E-bit processor will halt the monitoring of the received E bit during the loss of CRC-4 multiframe alignment.
Multiframe
Submultiframe
(SMF)
Frame
Number
Bits
1
2
0
1
0
1
0
1
0
1
3
0
A
0
A
0
A
0
A
4
1
5
1
6
0
7
1
8
1
I
0
1
2
3
4
5
6
7
C1
0
C2
0
C3
1
C4
0
Sa4
1
Sa4
1
Sa4
1
Sa4
Sa5
1
Sa5
1
Sa5
1
Sa5
Sa6
0
Sa6
0
Sa6
0
Sa6
Sa7
1
Sa7
1
Sa7
1
Sa7
Sa8
1
Sa8
1
Sa8
1
Sa8
II
8
9
10
11
12
13
14
15
C1
1
C2
1
C3
E
C4
E
0
1
0
1
0
1
0
1
0
A
0
A
0
A
0
A
1
1
0
1
1
Sa4
1
Sa4
1
Sa4
1
Sa4
Sa5
1
Sa5
1
Sa5
1
Sa5
Sa6
0
Sa6
0
Sa6
0
Sa6
Sa7
1
Sa7
1
Sa7
1
Sa7
Sa8
1
Sa8
1
Sa8
1
Sa8
相關(guān)PDF資料
PDF描述
T8100A H.100/H.110 Interface and Time-Slot Interchangers
T8102A H.100/H.110 Interface and Time-Slot Interchangers
T8105A H.100/H.110 Interface and Time-Slot Interchangers
T8100 H.100/H.110 Interface and Time-Slot Interchanger
T8110 Version History
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
T7630426 制造商:COOPER INDUSTRIES 功能描述:CC ACCESYS / #2450 3/8 Spring Snap Link Stainless Steel UPC Tagged
T-7630-TL2-DB 制造商:Legerity 功能描述:5V DUAL T1/E1 SHORT-HAUL TERMINATOR
T7633 制造商:AGERE 制造商全稱:AGERE 功能描述:Dual T1/E1 3.3 V Short-Haul Terminator
T7645036 功能描述:手工工具 Campbell Snap Link #2450, 7/16", Steel RoHS:否 制造商:Molex 產(chǎn)品:Extraction Tools 類型: 描述/功能:Extraction tool
T7645106 制造商:COOPER INDUSTRIES 功能描述:CC ACCESYS / #7350 1/8 Quick Link Steel Zinc Plated UPC Tagged