Daktronics AF-3180-64-R,A - Manual (Page 31)

Signal Converter to Controller Board (A31)
Signal Converter (J4/J5) Field Cabling
Surge Board Assembly
TB2 (RS422 In)
Pin 1 (GND) Shield Pin 1 (A GND)
Pin 2 (RX-P) Red Pin 2 (D1OUT-P)
Pin 3 (RX-N) Black Pin 3 (D1OUT-N)
Pin 4 (TX-P) Green Pin 4 (D1IN-P)
Pin 5 (TX-N) White Pin 5 (D1IN-N)
Pin 6 (GND) Pin 6 (A GND)
Modem
Reference Drawings:
System Riser Diagram, Modem ............................ Drawing A-174342
Schem, Sig Wiring, Internal, W/QC PCB............... Drawing B-177662
A display that is controlled using a modem 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 “Tip” and “Ring”. The telephone
cable is terminated to TB2 on the modem in the display or to a plug that is connected
to the Quick Connect at the display. The phone cable must be routed though conduit.
Do not run signal and display power through the same conduit. Refer to
Drawing A-174342 for system layout.
1. If using a quick connect cable, connect the phone line to J32 on the back of
the display. A 6-conductor phone cord with RJ11 connectors (Daktronics
part number 0A-1137-0160) relays the signal 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 in the display. Drawing B-177662
shows the terminal block wiring.
3. A second phone cord (Daktronics part number 0A-1137-0160) transfers
data from J6 on the modem to J3 (RS232 IN) on the controller.
Note: The jumper X1 on the controller board must be closed to recognize that a
modem is being used with the display.
Figure 28: Modem Display Controller
Electrical Installation 3-11