User's Manual

05-3946A01, Rev. C TransNET OEM Integration Guide 49
•if OT = ON, DEVICE = DCE, and RXD = 0, data delay is 1 second or
until RTS
•if
DEVICE = DCE, and RXD = N, data delay is N ms
•if
DEVICE = CTS KEY, and CTS = N, data delay is N ms or until RTS
•if
DEVICE = CTS KEY overrides RXD, RXD overrides OT default.
OWM [xxxxx]
“Owner’s Message”
The OWM command sets or displays an optional owner’s message, such as
the system name. The entry can contain up to 30 characters.
OWN [xxxxx]
“Owner’s Name”
The OWN command sets or displays an optional owner’s name, such as the
site name. The entry can contain up to 30 characters.
PORT [RS232, RS485]
Data Interface Signaling Standard
Select or identify the current data INTERFACE connector’s, J3, signaling mode:
RS232 or RS485. This is the port though which the payload data will pass.
Pin descriptions for EIA-232 and EIA-485 variations begin on “Transceiver
Module’s Interface Connector, J3, Detailed Pin Descriptions” on Page 66.
This command will not function on transceivers with a TTL signalling inter-
face.
PWR [20–30]
Radio Transmitter Power Level
This command displays or sets the desired RF power output of the radio. The
PWR command parameter is specified in dBm and can be adjusted in 1 dBm
steps. The default setting is 30 dBm (1 watt) for the 900 MHz model and
27 dBm (0.5 watt) for the 2400 MHz model. To read the actual (measured)
power output of the radio, use the
SHOW PWR command.
In the USA, maximum allowable power is governed by FCC limits on Effec-
tive Isotropic Radiated Power output (EIRP). The EIRP limit of +36 dBm on
the 900 and 2400 MHz band, means that any user with a net antenna gain
greater than 6 dBi on the 900 MHz band, or 9 dBi on the 2400 MHz band,
must decrease the
PWR setting accordingly. “How Much Output Power Can
be Used?” on Page 17 contains a detailed discussion of this topic.