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| 型號(hào)： | SI2401FS08-EVB |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 21/76頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL SI2401 + SI3008 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ISOmodem® |
| 主要目的： | 電信，數(shù)據(jù)采集裝置（DAA） |
| 已用 IC / 零件： | SI2401 |
| 已供物品： | 板，CD |
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Si2401
28
Rev. 1.0
send the first SIA block after the “c” is received. Once
the block is transmitted, the modem can monitor for the
acknowledge
tone
by
completing
the
following
sequence:
1. Place the Si2401 in command mode by pulsing the
ESCAPE pin (Si2401 pin 14). The “+++” and “ninth-
bit” escape modes operate in the “!2” mode but are
not recommended because they can send unwanted
characters to the remote modem.
2. Issue the “ATX1” command to turn the modem
transmitter off and begin monitoring for the
acknowledgment tones.
3. Monitor for a positive (negative) acknowledgment “P”
(“N”) after the tone has been detected for at least
400 ms.
4. The modem, still in command mode, can be placed
online as a transmitter by issuing the “ATX2”
command or a receiver by issuing the “ATX3”
command. If tonal acknowledgement is not used, the
host can toggle the ESCAPE pin to place the Si2401
in the command mode and issue an “ATX2” or an
“ATX3” command to reverse data direction.
This sequence can be repeated for long messages.
5.5. Modem Result Codes and Call
Progress
Table 14 shows the modem result codes that can be
used in call progress monitoring. All result codes are a
single character to speed up communication and ease
host processing.
Table 14. Modem Result Codes
Command
Function
a
British Telecom Caller ID Idle Tone
Alert Detected
b
Busy Tone Detected
c
Connect
d
Connect 1200 bps (when pro-
grammed as V.22bis modem)
f
Hookswitch Flash or Battery Reversal
Detected
H
Modem Automatically Hanging Up in
!2, !1
I
Intrusion Completed (parallel phone
back on-hook)
i
Intrusion Detected (parallel phone off-
hook on the line)
K
Kissoff Tone Detected
k
Contact ID Kissoff Tone too long (!1)
L
Phone Line Detected
l
No Phone Line Detected
m
Caller ID Mark Signal Detected
NNo Carrier Detected
n
No Dial tone (time-out set by CW
[S02])
O
Modem OK Response
R
Incoming Ring Signal Detected
r
Ringback Tone Detected
t
Dial Tone
v
Connect 75 bps TX (V.23 originate
only)
x
Overcurrent State Detected After an
Off-Hook Event
^
Kissoff tone detection required
,
Dialing Complete
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI2401FS10-EVB | 功能描述:網(wǎng)絡(luò)開發(fā)工具 SI2401+SI3010 ISO MODEM EVAL. BOARD RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評(píng)估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| SI2401-FSR | 功能描述:電信線路管理 IC 2400b/s System Side 3rd Gen DAA Tech RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| SI2401URT-EVB | 功能描述:網(wǎng)絡(luò)開發(fā)工具 U 634-SI2401FS10-EVB RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評(píng)估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| SI2403 | 制造商:SILABS 制造商全稱:SILABS 功能描述:V.22BIS ISOMODEM CHIPSET WITH ERROR CORRECTION |
| SI2403-FT | 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 2.4KBPS 24TSSOP - Rail/Tube |
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