XBP24-PKI-001-RA Digi International/Maxstream, XBP24-PKI-001-RA Datasheet - Page 20

• Manufacturer Part Number: XBP24-PKI-001-RA
• Description: MODULE 802.15.4 RS-232 ANT
• Manufacturer: Digi International/Maxstream
• Series: XBEE-PRO™r

Specifications of XBP24-PKI-001-RA

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: Home/Building Automation, Industrial Control, ZigBee™
• Power - Output: 0dBm
• Sensitivity: -92dBm
• Voltage - Supply: 2.8 V ~ 3.4 V
• Current - Receiving: 55mA
• Data Interface: Connector, Female DB-9
• Antenna Connector: RP-SMA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Memory Size: -
• Current - Transmitting: -
• Other names: Q3255595

© 2008 Digi International, Inc.
XBee‐PRO PKG‐R® RS‐232 RF Modem – 802.15.4 ‐ Product Manual v1.xAx
Cyclic Sleep Modes
Pin Doze (SM = 2)
Pin Doze Mode functions as does Pin Hibernate Mode; however, Pin Doze features faster wake-up
time and higher power consumption.
To wake a sleeping modem operating in Pin Doze Mode, assert DTR (Data Terminal Ready). The
modem will wake when DTR is asserted and is ready to transmit or receive when the CTS line is
low. When waking the modem, the pin must be asserted at least two 'byte times' after CTS goes
low. This assures that there is time for the data to enter the DI buffer.
Cyclic Sleep Remote (SM = 4)
The Cyclic Sleep Modes allow modems to periodically check for RF data. When the SM parameter is
set to ‘4’, the modem is configured to sleep, then wakes once a cycle to check for data from a
modem configured as a Cyclic Sleep Coordinator (SM = 0, CE = 1). The Cyclic Sleep Remote sends
a poll request to the coordinator at a specific interval set by the SP (Cyclic Sleep Period)
parameter. The coordinator will transmit any queued data addressed to that specific remote upon
receiving the poll request.
If no data is queued for the remote, the coordinator will not transmit and the remote will return to
sleep for another cycle. If queued data is transmitted back to the remote, it will stay awake to
allow for back and forth communication until the ST (Time before Sleep) timer expires.
Also note that CTS will go low each time the remote wakes, allowing for communication initiated
by the remote host if desired.
Cyclic Sleep Remote with Pin Wake-up (SM = 5)
Use this mode to wake a sleeping remote modem through either the RF interface or by the
assertion of DTR for event-driven communications. The cyclic sleep mode works as described
above (Cyclic Sleep Remote) with the addition of a pin-controlled wake-up at the remote modem.
The DTR pin is edge-triggered, not level-triggered. The modem will wake when a low is detected
then set CTS low as soon as it is ready to transmit or receive.
Any activity will reset the ST (Time before Sleep) timer so the modem will go back to sleep only
after there is no activity for the duration of the timer. Once the module wakes (pin-controlled),
further pin activity is ignored. The modem transitions back into sleep according to the ST time
regardless of the state of the pin.
[Cyclic Sleep Coordinator (SM = 6)]
NOTE: The SM=6 parameter value exists solely for backwards compatibility with firmware version
1.x60. If backwards compatibility with the older firmware version is not required, always use the CE
(Coordinator Enable) command to configure a modem as a Coordinator.
This mode configures a modem to wake cyclic sleeping remotes through RF interfacing. The
Coordinator will accept a message addressed to a specific remote 16 or 64-bit address and hold it
in a buffer until the remote wakes and sends a poll request. Messages not sent directly (buffered
and requested) are called "Indirect messages". The Coordinator only queues one indirect message
at a time. The Coordinator will hold the indirect message for a period 2.5 times the sleeping period
indicated by the SP (Cyclic Sleep Period) parameter. The Coordinator's SP parameter should be set
to match the value used by the remotes.
• Pin/Host-controlled
• Typical power-down current: < 6 mA
• Wake-up time: 2 msec
• Typical Power-down Current: < 25 mA (when asleep)
• Wake-up time: 2 msec
• Typical current = Receive current
• Always awake
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