Daktronics AB-1600-1.5,2.5 - Manual (Page 21)

Electrical Installation
3-5
3.5 Signal Termination From Computer To Display
Reference Drawing: V1500 Signal Termination .................. Drawing A-103727
The method used to route and terminate signal at the display differs according to the
type of control cable used. The following sets of instructions cover the various control
cables listed in Section 3.4. Refer to the procedure that is appropriate for your display.
Drawing A-103727 illustrates Venus 1500 signal terminations for RS/232, RS/422,
modem and fiber optic control cables.
3.5.1 RS/232 (Venus 1500 System)
Reference Drawing: Sys. Riser Diag. (232) .......... Drawing A-103729
Mount RS232 J-box at the base of the display (within 25 feet). Route conduit
and cable from the J-box to the left end of the master face. Continue cable
into the controller box fitting labeled “Signal In.”
One end of the signal cable should be terminated to the 6 position terminal
block on the controller in the display labeled “RS232 IN” (TB1). Drawing
A-103727 is an example of the termination block. The other end is
terminated at a J-box at the display structure (as shown below). The laptop
PC connects to the J-box through the serial cable (refer to Drawing A-
103729).
J-Box Field Cabling Terminal Block (RS232 In)
Pin 1 (N.C.)
Pin 2 (N.C.)
TB41-2 Clear Pin 3 (TX-P)
TB41-3 Shield Pin 4 (GND)
TB41-1 Black Pin 5 (RX-P)
Pin 6 (N.C.)
3.5.2 RS/422 (Venus 1500 System)
Reference Drawing: Sys. Riser Diag. (422) .......... Drawing A-103728
Route conduit and cable from the PC running Venus 1500 to the left end of
the master display. Continue cable into the controller box fitting labeled
“Signal In.” One end of the signal cable should be terminated to the 6
position terminal block in the display labeled “RS422 IN” (TB2). Drawing
A-103727 is an example of the termination block. The other end is
terminated at the signal converter (Daktronics part number 0A-1127-0237) in
the control room (as seen in the following table). Refer to Drawing
A-103728.