aci DSIM-MV, Руководство по установке

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DSIM-MV
Installation Guide Rev F
9. Thermal AGC Setup
In setting up the DSIM-MV modules as a Thermal AGC the cable length dB values will need to be
adjusted to match the dB of cable that is in front of the station. The DSIM controllers will come
preset to have a default cable length setting of 27 dB in the memory. The controller is used to
set the DSIM-MV module to either 9 dB, 18 dB, or 27 dB of cable by
simply clicking the “Increase”
or “Decrease” buttons on the controller
.
1. Remove the RF module faceplate and install the DSIM-MV AGC module into the amplifier.
Then re-install the RF module faceplate.
2. For new amplifier installations allow the amplifier to warm up for a few minutes prior to
setting up the DSIM-MV AGC module.
3. Set the ALSC switch to on.
4. Connect the DSIM controller to the DSIM-MV AGC module with the interface cable
assembly.
5. The controller LED will then flash red / blue rapidly while the DSIM controller and DSIM-MV
module completes the syncing process. This process will take approximately
2-3 seconds to complete.
6. Once the controller LED stops flashing the red / blue sequence, it should then display a
constant blue, indicating that it is in MGC (manual) mode.
Click “Mode” button twice to go
from MGC to TGC. The LED on the controller should now be a constant purple. Note if the
LED is flashing fast for the AGC channel count followed by an orange 1 or 2 blink, click the
"Mode" button once to change from AGC to TGC.
7. All DSIMs have a TGC default setting of 27 dB. There are three TGC factor options: 9 dB,
18 dB and 27 dB. The blinking pattern should indicate 27dB. Push the '-' button once for
18 dB or twice for 9 dB. Check the blink pattern to verify TGC value.
a. Blink patterns for TGC
i. 27 dB (2 fast blinks, pause, 7 fast blinks, pause, 3 long blinks)
1. For more than 1000ft of cable before the amplifier
ii. 18 dB (1 fast blink, pause, 8 fast blinks, pause, 3 long blinks)
1. For 600ft - 1000ft of cable before the amplifier
iii. 9 dB (9 fast blinks, pause, 3 long blinks)
1. for less than 600ft of cable before the amplifier