Sea Tel DAC-03, Инструкция по установке и эксплуатации

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Installation DAC-03 Tracking Antenna Controller
4-2
4.4. Install the ACU
Install the ACU in the front of the standard 19” equipment rack or other suitable location.
4.5. Install the Terminal Mounting Strip (TMS)
Install the TMS in the rear of the standard 19” equipment rack or other suitable location.
Connect the TMS to the ACU.
1. Connect the 25 pin ribbon cable from the Terminal Mounting Strip to J3 “Ships Gyro” jack on the
rear panel of the ACU.
2. Connect the 9 pin ribbon cable (or NMEA serial cable) from the Terminal Mounting Strip to J13
“NMEA” jack on the rear panel of the ACU.
4.6. Install the Base Multiplexer Panel
If your antenna system includes a base multiplexer panel, install the panel in the rear of the standard 19”
equipment rack or other suitable location.
4.7. Terminal Mounting Strip (TMS) Connections
There are several functional connections that may be made on the TMS connectors. You may not need to
make all of these connections, but they are listed here for you to decide which ones you do need to make
during the installation. Connect the 9 pin ribbon cable from this PCB to J13 “NMEA” jack on the rear panel
of the ACU. Connect the 25 pin ribbon cable from this PCB to J3 “Gyro Compass” jack on the rear panel of
the ACU. They are:
CAUTION - Electrical Shock Potentials exist on the Gyro Compass
output lines. Assure that the Gyro Compass output is turned OFF
when handling and connecting wiring to the Terminal Mounting
Strip.
TB-1 Synchro Gyro Compass Input . Use the R1, R2, S1,S2 and S3 screw terminals to connect the
Synchro Gyro Compass to the ACU.
TB-2 Control Interface Connections .
SW2
- The
Blockage
/
TX Mute
Control output is driven by Blockage and RF Radiation Hazard functions.
This output will short to ground whenever the antenna is within the AZ LIMIT zone(s) or is Searching,
Targeting, Unwrapping or is mispointed 0.5 degrees from satellite peak. This output is commonly used to
drive:
•
Dual Antenna Arbitrator coax switches in TVRO dual antenna
configurations. The coax switches select which antenna is
feeding signal to the matrix switch.
•
Mute the Transmit output of the Satellite Modem used in
TX/RX antenna configurations when the antenna is positioned
where people may be harmed by the transmit power
emanating from the antenna (RF Radiation Hazard).
•
Mute the Transmit output of the Satellite Modem used in
TX/RX antenna configurations when the antenna is mispointed
by 0.5 degrees, or more, and keep it muted until the antenna
has been within 0.2 degrees of peak pointing to the satellite for
a period of 5 seconds (FCC part 25.221 & 25.222 TX Mute
requirement).
SW1
-
Band Selection control output
. This output is used to
control below decks tone generator(s), or coax switch(s), for band
selection functions. The band selection control output is driven by the