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参数资料
| 型号： | DS2143QN/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/44页 |
| 文件大小： | 0K |
| 描述： | IC CONTROLLER E1 5V LP 44-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 500 |
| 控制器类型： | E1 控制器 |
| 接口： | 并行/串行 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 10mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC（16.59x16.59） |
| 包装： | 带卷 (TR) |
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DS2143/DS2143Q
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ALARM CRITERIA Table 2
ALARM
SET CRITERIA
CLEAR CRITERIA
ITU
SPEC.
RSA1
(receive signaling
all 1s)
over 16 consecutive frames
(one full MF) timeslot 16
contains less than 3 0s
over 16 consecutive frames (one full
MF) timeslot 16 contains three or
more 0s
G.732
4.2
RSA0
(receive signaling
all 0s)
over 16 consecutive frames
(one full MF) timeslot 16
contains all 0s
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
MFs
bit 6 in timeslot 16 of frame 0 set to
0 for two consecutive MFs
O.162
2.1.5
RUA1
(receive unframed
all 1s)
less than three 0s in two frames
(512 bits)
more than two 0s in two frames (512
bits)
O.162
1.6.1.2
RRA
(receive remote
alarm)
bit 3 of non-align frame set to 1
for three consecutive occasions
bit 3 of non-align frame set to 0 for
three consecutive occasions
O.162
2.1.4
RCL
(receive carrier
loss)
255 consecutive 0s received
in 255 bit times, at least 32 1s are
received
G.775
Note: all the alarm bits in Status Register 1 except the RUA1 will remain set after they are read if the
alarm condition still exists; the RUA1 will clear and check the next 512 bits for an all 1s condition at
which point it will again be set if the alarm condition still is present.
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