Daktronics AF-3165-34-RGB - Manual (Page 35)

Modem
Reference Drawings:
System
Riser Diagram, Modem ................................... Drawing A-174342
Schematic, Signal Wiring Internal, w/QC PCB ............ Drawing B-177662
A modem-controlled display requires the use of an internal or external modem at the
computer. The local phone company must provide a dedicated phone line to the
display and identify the colors used for the Tip wire and for the Ring wire. The
telephone cable is terminated to TB2 on the modem in the display. The phone cable
must be routed though conduit. Do not run phone line and display power through
the same conduit. Refer to
Figure 26 and Drawing A-174342 for system layout.
1. If using a quick connect cable, the phone line will run to a junction box at
the display and then a cable will connect the phone line to J32 on the back
of the display. A 6-conductor phone cable with RJ11 connectors
(Daktronics part number 0A-1137-0160) relays the signal from the quick
connect input board to the modem
2. When connecting directly to the display, terminate the phone line to TB2 on
the display modem. If the phone company provided a phone termination
box in the display a straight phone cable can be connected from the box to
the J5 Phone IN on the modem board. Refer to
Figure 27 and Drawing B-
177662 for the terminal block wiring
3. A straight through RJ45 cable (Daktronics part number 0A-1229-0054)
transfers data from J6 on the modem to J3 (RS232 IN) on the controller
Figure 26: Modem Display Layout
Electrical Installation
3-15