Campbell Scientific RF310, RF312, RF313 Narrowband Radios - Manual (Page 25)

Section 3. Radiotelemetry Network Components
3-3
either be open, represented by 1, or closed, represented by 0; X in Table 3-1
refers to "don't care." The ninth dip switch is set according to the desired
RF310M state, see Section 3.1.2 "RF310M States." The RF310M is shipped
with a Station ID of 1 and are set in the RF310M-ME state. The RF310M
inside the RF base station (RF310B) is shipped with a station ID of 254 and
RF310M-ME state.
FIGURE 3-2. Setting the Station ID
3.1.4 The Carrier Detect Light
The Carrier Detect light on the front panel of the RF310M has several
purposes. The primary function of the light is to indicate when data is being
received or transmitted. The light will stay on when a network frequency
originating from another RF310M is detected. If a signal is detected which isn't
intended for that station, the light will shut off after about two-tenths of a
second.
The Carrier Detect light can also be used to check the RAM (Random Access
Memory) and ROM (Read Only Memory) of the RF310M. With the radio
disconnected and the datalogger in the LOG (*0) Mode, connect the datalogger
to the RF310M CS I/O Port with a 9-pin cable. The sequence of the light
flashing after connection indicates the RAM and ROM status.
Both the RAM and ROM are good if the light goes on for one second, off for
one second, and then back on for one second. The RAM is faulty if the light is
on for one half second and off for one half second, continuously. The ROM is
faulty if the light goes on for one second, off for one half second, on for one
half second, and then off for one half second, continuously.
3.1.5 Data Transfer Rate
The data transfer rate is the time it takes to get data from the datalogger to the
computer. In general, data can be transferred at a rate of about 30 data
points/second (60 bytes/second) without a repeater. If a repeater is used, an
approximate data transfer rate is 22 data points/second.