Installation
DAC-03 Tracking Antenna Controller
4-4
4.8.
Pedestal Control Connection
Connect the Antenna Control Cable, between J1 on the rear of the ACU and the 9 pin D Sub connector on
the base multiplexer panel mounted in the rear of the rack.
4.9.
AC Power To The ACU
Assure Power switch on the rear panel of the ACU is turned OFF.
Removed the “Factory Set At 220 V” yellow sticker covering the AC
receptacle. If you are not supplying 220 VAC power to the ACU, you
must extract the voltage select/fuse block from below the AC
receptacle. Rotate the voltage select/fuse block CW or CCW to select
110 VAC and re-insert it into the power module. Connect AC Power
cord to the ACU and to the AC Power outlet.
4.10.
AGC Tracking Connection
Connect the IF Coax from one of the available outlets on the FSK Modem, splitter or matrix switch to “RF
IN” jack on the rear panel of the ACU.
For external AGC, connect a cable between the AGC or TM output of the master receiver or modem and the
terminals labeled “EXT AGC” and “ GND” TB2 of the Terminal Mounting Strip.
4.11.
Monitor And Control Connections
The Monitor and Control port allows external control from a PC using a communications program such as
HyperTerminal. The ACU is wired as a DTE device for direct connection to another DTE device such as a
terminal or PC, a null modem cable as shown in drawing 116670 is required.
CAUTION:
DC Voltage exists Aux Serial Port connectors that will
damage your
computer COM port.
The Monitor & Control computer connection to the ACU
MUST
be a null modem cable as shown on Sea Tel drawing
116670.
Connect the null modem cable between J11 on the rear panel of the ACU and the ASCII terminal or PC
serial interface port (COM port). Set the terminal or PC to 4800 baud, 8 bits, no parity (9600 baud operation
is available on the Aux Serial Board only by installing a jumper at D1).
4.12.
Install Other BDE Equipment
Install and connect the other below decks equipment as required.
4.13.
Final Checks
4.13.1.
Visual/Electrical inspection
Do a visual inspection of your work to assure that everything is connected properly and all
cables/wires are secured.
4.13.2.
Electrical - Double check wiring connections
Double check all your connections to assure that it is safe to energize the equipment.
4.14.
Power-Up
Refer to the Antenna Pedestal I&O manual to complete its installation BEFORE turning the ACU power ON.
When all equipment has been installed, turn ACU power ON. Turn Antenna Pedestal power ON. The
antenna will begin Initializing. The ACU will initially display “SEA TEL – MASTER and DAC-03 VER 3.xx”.
About 10 seconds later the display will change to “SEA TEL – REMOTE and INITIALIZING”. After
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