XStream™
OEM
RF
Module
–
Product
Manual
v5.x00
[2006.02.24]
©
2006
MaxStream,
Inc.
Confidential
and
Proprietary
46
Sleep Modes and Connections
Cyclic sleep can be used with the remote modules to conserve power. ST “Time before Sleep”
ssage is detected, the module will stay awake
n
that
ng enough to account for the time it could take
Parameter defines how long after a disconnect a remote will stay awake. A module is not allowed
to enter sleep mode when it is engaged in a connection. A module will wake as defined by SM
parameter and check for an RF message. If a me
only if the message is a connect message from the base for this module. DI3 (pin 2) wake-up ca
be used to wake a remote module. Usually the connection on DI3 should also be enabled so
a connection is established on wake-up.
NOTE: The ST (Time Before Sleep) time must be set lo
to make a connection if several remote modules get a connection before a remote’s ST times out.
into pin sleep
al not defined by the cyclic sleep modes.
I/
Pin sleep can also be used with a remote module. A module will not be allowed
while a connection is active. Usually the connection on DI3 (DR = 4) should also be enabled so
that a connection is established on wakeup. Pin wake-up could also be used to scan for a
connection at an interv
O Passing and Connections
I/O lines can be passed between a remote and base module by enabling I/O line passing (se
RT, DR, CD, CO, CS, BK, BO
e the
commands). When a connection is not active, the output lines on the
les will be in their default state. When a connection is established, the
Moni
base and remote modu
base and remote output line will be set to reflect the corresponding input lines.
toring Connections
The DO3 pin (RX LED) can be used to show when a connection is active on both remote and bas
modules. This is the default condition. This line will be asserted (high) during a connectio
de-asserted (low) when there is no connection.
e
n and
o send the “CONNECT XXXX” string (where “XXXX” is the
s MY (Source Address) p
anytime a connection is established. Refer
ssage
A base module can also be set t
connecting module’
n Me
arameter)
to CM (Connectio
) Command.
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