Amphenol Procom CSR-DMT Посібник користувача - Сторінка 13
Переглянути онлайн або завантажити pdf Посібник користувача для Ретранслятор Amphenol Procom CSR-DMT. Amphenol Procom CSR-DMT 16 сторінок. Bi-directional digitally controlled amplifier that offers an increase of signal strength in small and medium-sized rooms.
Друкувати сторінку4.4 Configuration interface
The CSR-DMT repeater has 4 band-segments. Each band-segment (Ch1 – Ch4) can be switched on and
off with a check box on the left (Figure 8, 1). Center frequency and bandwidth are changeable. Minimum
bandwidth is 25 kHz (one TETRA channel). Maximum bandwidth is 5MHz (full-band mode).
Frequency bandwidth in kHz is displayed in the "Band" boxes (Figure 8, 2) and center frequency in MHz is
displayed in "Center Freq Up" boxes (Figure 8, 3) . Cut-off frequencies for up and down links are
displayed in "UpLink From/To" (figure 8, 4) and "DownLink From/To" boxes (figure 8, 5).
Enabled bands are allowed to be side-by-side, like (UpLink) Ch2 from 380 MHz to 382 MHz and Ch3 from
382 MHz to 385 MHz, but if bands are overlapping warning message shows and button "Send Config" is
disabled. It is impossible to send such configuration to the repeater.
Channel attenuation can be adjusted manually for each channel (figure 8, 6 uplink) and also for all four
channels of up (figure 8, 7 uplink) and down links jointly with physical attenuators (see figure 1 "CSR-DMT
block diagram" for details). Resulting gain for each channel is displayed in the "Total Gain" boxes for up
and down links.
Repeater power could be switched on and off by "Repeater Power" selector individually for each
configuration and software AGC (independent from built-in hardware AGC loop) can be enabled or
disabled individually for each configuration with "AGC" selector (figure 8, 8).
Repeater name and serial number are displayed in the information boxes below power and AGC settings.
Information box above AGC settings shows configuration state. Values can be "Configuration changed" -
meaning repeater has different configuration than shown in DR_Ctrl; and "Configuration updated" -
meaning repeater and DR_Ctrl configs match.
Repeater health state and measurements are displayed in information blocks "Health State" and
"Measurements" (figure 8, 9). User must click on either box to reread the data from repeater. "Health
State" boxes are green and "Fault Code" box contains zeroes while repeater is in good health. If there is
problem like overheating or power supply voltage is out of range, corresponding boxes will turn red.
Measured values of RF power in up and down links, power supply voltage and temperature inside
repeater are displayed in the "Measurements" block.
To enable Measurements and Health State automatic refresh check "Autoupdate" check box, buttons
become disabled while autoupdate is active to avoid message collision.
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