- 您现在的位置：买卖IC网 > Sheet目录537 > XT09-PKI-EA-NA (Digi International/Maxstream)MODEM RF 900MHZ 1W ETHER INT
9XTend ‐ PKG ‐ E? ? Ethernet ? RF ? Modem ? – ? Product ? Manual ? v2.x4x ? [2007.01.04]
The SM (Sleep Mode) command is central to setting all Sleep Mode configurations. By default,
Sleep Modes are disabled (SM = 0) and the modem remains in Idle/Receive Mode. When in this
state, the modem remains constantly ready to respond to serial or RF activity.
Serial Port Sleep (SM = 2)
? Wake on serial port activity
? Typical power-down current: < 210 mA
Serial Port Sleep is a Sleep Mode in which the modem runs in a low power state until serial data is
detected on the DI pin.
The period of time the modem sleeps is determined by ST (Time before Sleep) Command. Once a
character is received through the DI pin, the modem returns to Idle Mode and is fully operational.
Cyclic Sleep (SM = 4-8)
? Typical Power-down Current: < 210 - 224 mA (when asleep)
Cyclic Sleep Modes allow modems to periodically wake and check for RF data. The modem wakes
according to the times designated by the Cyclic sleep settings. If the modem detects a wake-up
initializer during the time it is awake, the modem synchronizes with the transmitting modem and
receives data after the wake-up initializer runs its duration. Otherwise, the modem returns to
Sleep Mode and continues to cycle in and out of activity until a wake-up initializer is detected.
While the modem is in Cyclic Sleep Mode, CTS (GPO1) is de-asserted (high) to indicate that data
should not be sent to the modem. When the modem awakens to listen for data, GPO1 is asserted
and any data received on the DI Pin is transmitted. The PWR pin is also de-asserted (low) when
the modem is in Cyclic Sleep Mode.
The modem remains in Sleep Mode for a user-defined period of time ranging from 0.5 seconds to
16 seconds (SM parameters 4 through 8). After this interval of time, the modem returns to Idle
Mode and listens for a valid data packet for 100 ms. If the modem does not detect valid data (on
any frequency), the modem returns to Sleep Mode. If valid data is detected, the modem transi-
tions into Receive Mode and receives the incoming RF packets. The modem then returns to Sleep
Mode after a period of inactivity determined by the ST "Time before Sleep" parameter.
The modem can also be configured to wake from cyclic sleep when the SLEEP pin is de-asserted.
To configure a modem to operate in this manner, PW (Pin Wake-up) Command must be issued.
Once the SLEEP pin is de-asserted, the modem is forced into Idle Mode and can begin transmitting
or receiving data. It remains active until data is no longer detected for the period of time specified
by the ST Command, at which point it resumes its low-power cyclic state.
Cyclic Scanning . Each RF transmission consists of an RF Initializer and payload. The RF initializer
contains initialization information and all receiving modems must wake during the wake-up initial-
izer portion of data transmission in order to be synchronized with the transmitting modem and
receive the data.
The cyclic interval time defined by SM (Sleep Mode) Command must be shorter than the interval time
defined by LH (Wake-up Initializer Timer).
? ? 2007 ? MaxStream, ? Inc., ? Confidential ? & ? Proprietary ?‐? All ? Rights ? Reserved ?
????? 17
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
XT09-SI
MODULE RF 900MHZ 1W 115K W/RPSMA
XU-A11
X-STICK 2.4GHZ USB TO XBEE
XV-8000CB :3 50.3000KHZ+/-60DPS
AUTOMOTIVE GYRO SENSOR +/-60DPS
YB03WKW01-6B-JB
INDICATOR PB RECT WHT LED ILLUM
YGM1 C518
THERM PTC MINI-BEAD 3MM 180C
YQD120N0006
THERMISTOR PTC OCP 6 OHM 25C
Z4D-A01
PHOTO SENSOR 7.5MM REFLECT TYPE
ZALM-301-1C-B
RF TRANSCEIVER 100MW MMCX W/CONN
相关代理商/技术参数
XT09-PKI-E-NA
功能描述:射频模块 9XTend 1W Ethernet w/o accessories Intl
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
XT09-PKI-R
功能描述:射频模块 9XTend 1W RS232/485 w/o accessories
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
XT09-PKI-RA
功能描述:射频模块 900MHz - Xtend software setable
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
XT09-PKI-RA-NA
功能描述:射频模块 9XTend 1W RS232/485 w/accessories no AES
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
XT09-PKI-RDA
功能描述:射频模块 XTend-PKG 900 MHz IndRS-232class1/div2
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
XT09-PKI-R-NA
功能描述:射频模块 9XTend 1W RS232/485 w/o accessories Intl
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
XT09-PKI-R-NL
制造商:Digi International Inc 功能描述:MODEM RF 900MHZ 9600/11
XT09-PKT-R
功能描述:MODEM RF 900MHZ RS232/485 RoHS:是 类别:RF/IF 和 RFID >> RF 接收器、发射器及收发器的成品装置 系列:XTend™ 标准包装:5 系列:MultiModem® iCell 功能:收发器，HSPA，调制解调器 调制或协议:GPRS，GSM，EDGE 频率:850MHz，900MHz，1.8GHz，1.9GHz 应用:- 接口:RS-232，USB 灵敏度:- 功率 - 输出:- 数据传输率 - 最大:7.2 Mbps 特点:- 电源电压:9 V ~ 32 V，USB 其它名称:881-1125