User's Manual

Page viii FRH-SD07TU/TB Manual
Rev. 020510-01
Ope rationa l Safety H azards and Not es
Before each use of the FRH-SD07TU/TB modem, ensure that the area
where the equipment will be operated is clear of people or obstacles
that may affect its safe operation.
Before each use of the FRH-SD07TB/TU modem, verify that both the
equipment being controlled and the modem are in proper operating
condition.
When rewriting the FRH-SD07TB/TU modem’s memory registers, do
not turn the modem’s power off until the modem returns a “P0”
response. If the power is interrupted before a P0 response is returned,
the memory contents may be lost or corrupted and the modem
operation will be unpredictable. If the memory contents are lost or
corrupted, they may be restored to original default settings by
reinitializing them. (See p.44 Memory REGISTER INITIALIZATION
for
more details.)
Do not attempt to operate remotely controlled equipment outside the
communication range of the FRH-SD07TU/TB system. Doing so
could cause loss of control of the equipment.
Without implementing proper serial communication flow control
settings, the baud rate between the modem and its terminal equipment
(wire linked) can exceed the wireless link data rate and cause the
modem buffer to overflow. This can result in malfunction of the
systems being controlled and/or data corruption. Ensure that the
appropriate flow control settings are being used for your upper layer
application protocol.
Caution
Exposure to Radio Frequency Radiation
For FCC RF safety requirements a miminmum of 20 cm separation
distance should be kept between the antenna and the user.