Thermo Scientific AutoWAVE 1-0479-013, Руководство пользователя

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Document 1-0479-013 Rev B
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(3) Xmit Rate
There are two settings for the Transmit Rate parameter. For normal operation AutoWAVE
should be set at Transmit Rate 1. Transmit Rate 0 is useful to qualitatively gauge signal
strength. When set to Transmit Rate 0 the transceivers will transmit data back and forth
continuously, and the strength of the signal may be gauged by the Clear to Send LED. A
solid red Clear to Send LED indicates a strong signal, the less the LED is on the weaker the
signal.
Because the transceivers transmit continuously when Transmit Rate is set to 0 (whether or
not they have data to send) they use radio frequency spectrum unnecessarily. Therefore,
Transmit Rate 0 should be used only as a diagnostic tool and not for normal operation.
(4) RF Data Rate
AutoWAVE has two settings for the RF Data Rate (not to be confused with the RS-232 baud
rate). Setting 2 should be used when the transceivers are close together and data throughput
is to be optimized. Setting 2 must also be used when full throughput of 115.2 Kbaud is
necessary. Setting 3 should be used when transceivers are farther away and a solid data link
is preferred over data throughput.
Note: When using the transceivers in Multipoint mode, the RF Data Rate setting must be
identical for all units in the system. Any transceiver with a different RF Data Rate
than the master will not establish a communication link.
(5) RF Xmit Power
AutoWAVE offers users the ability to modify the Transmission Power of the transceiver.
By reducing the Transmission Power when appropriate, users can ensure the transceivers do
not overwhelm each other when used in close proximity. There are 9 power settings
available (1-9) which are roughly linear, therefore a setting of 9 is full power or 1 Watt and
1 is approximately 10% power or 100 mW. The following guidelines should be followed
when setting the RF Transmission Power:
Setting Power Level Used When
1 - 3 Low Pair or pairs of transceivers operating within
same or adjoining rooms.
4 - 6 Medium More than one pair of modems operating
within same facility.
7 - 9 Full Normal operation extending beyond facility.
Table 9: Power Transmit Settings