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参数资料
| 型号： | CC-14.4K2-IS |
| 厂商： | Copeland Communications Inc |
| 文件页数： | 38/60页 |
| 文件大小： | 0K |
| 描述： | MODEM 14.4KBAUD SERIAL 3.3V |
| 标准包装： | 30 |
| 数据格式： | V.22，V23，V.32，Bell 103，Bell 212A |
| 波特率： | 14.4k |
| 电源电压： | 3 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 模块 |
| 包装： | 散装 |
| 配用： | 539-1002-ND - KIT EVALUATION WORLD MODEM II |
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Data Sheet
World modem II
Page 43 of 60
2004, Copeland Communications, Inc.
World modem II Datasheet Rev 1.1
U53 MOD2
Bit
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Name
REV
Type
R/W
Reset settings = 0x0000
Bit
Name
Function
V.23 Reversing
0 = Disable.
15
REV
1 = Enable.
14:00
Reserved
Read returns 0.
U62 DAAC1
Bit
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Name
0
1
0
OHS2
0
FOH
DL
0
Type
R/W
Reset settings = 0x0804
Bit
Name
Function
15:12
Reserved
Must be set to 0.
11
Reserved
Must be set to 1.
10:9
Reserved
Must be set to 0.
Oh-Hook Speed 2.
This bit works in combination with the OHS bit (U67 bit 6) to set the on-hook speed. The on-hook
speeds are measured from the time the OH bit is cleared until loop current equals zero.
OHS
OHS2
Mean On-Hook Speed
0
Less than 0.5ms
0
1
3 ms
± 10% (meets ETSI standard)
8
OHS2
1
X
26 ms
± 10% (meets Australia spark quenching spec)
7:3
Reserved
Must be set to 0.
Fast Off-Hook.
0 = Automatic Calibration Time set to 426 ms.
2
FOH
1 = Automatic Calibration Time set to 106 ms.
Isolation Digital Loopback (see the AT&T commands).
0 = Loopback occurs beyond the DAA interface, out to and including the analog hybrid
circuit.
1
DL
1 = Enables digital loopback mode across isolation barrier only.
0
Reserved
Must be set to 0.
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