參數(shù)資料
型號: DS21FT44N+
廠商: Maxim Integrated Products
文件頁數(shù): 60/117頁
文件大?。?/td> 0K
描述: IC FRAMER 4X4 16CH 300-BGA
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 40
控制器類型: E1 調(diào)幀器
接口: 并行/串行
電源電壓: 2.97 V ~ 3.63 V
電流 - 電源: 225mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 300-BBGA
供應(yīng)商設(shè)備封裝: 300-PBGA(27x27)
包裝: 管件
DS21FT44/DS21FF44
47 of 117
Table 11-1. ALARM CRITERIA
ALARM
SET CRITERIA
CLEAR CRITERIA
ITU SPEC.
RSA1
(receive signaling all 1’s)
Over 16 consecutive
frames (one full MF)
timeslot 16 contains less
than three 0’s
Over 16 consecutive frames
(one full MF) timeslot 16
contains three or more 0’s
G.732
4.2
RSA0
(receive signaling all 0’s)
Over 16 consecutive
frames (one full MF)
timeslot 16 contains all
0’s
Over 16 consecutive frames
(one full MF) timeslot 16
contains at least a single 1
G.732
5.2
RDMA
(receive distant
multiframe alarm)
Bit 6 in timeslot 16 of
frame 0 set to 1 for two
consecutive MF
Bit 6 in timeslot 16 of frame 0
set to 0 for two consecutive
MF
O.162
2.1.5
RUA1
(receive unframed all 1’s)
Less than three 0’s in two
frames (512 bits)
More than two 0’s in two
frames (512 bits)
O.162
1.6.1.2
RRA
(receive remote alarm)
Bit 3 of nonalign frame
set to one for three
consecutive occasions
Bit 3 of nonalign frame set to 0
for three consecutive occasions
O.162
2.1.4
RCL
(receive carrier loss)
255 (or 2048) consecutive
0’s received
In 255 bit times, at least 32 1’s
are received
G.775/G.962
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