Figure 38: modem, Figure 39: modem jumper location, Figure 38 – Daktronics AF-3165-34-RGB User Manual

Page 52

Figure 38: Modem

The modem module has five LEDs.

1. The power LED should remain lit while

power is applied to the modem

2. The RX and TX LED’s will flash when

communicating

3. The carrier detect LED will light when the

modem has established a connection with
another modem

4. The PC Connect LED is not used in this

application

The modem board also has several input and output
jacks:

1. J3 is the power input for 12VAC
2. TB2 is a phoenix connector to terminate

the Tip and Ring wires

3. J5 is an RJ11 jack for termination of a pre-

terminated phone line

4. J6 is the RS232 RJ45 output to the controller
5. J2, TB1, and TB3 are not used in this display application

A modem system requires the X1 jumper to be set on the controller board. Refer to

for the jumper location. Note: the jumper is only recognized on power up.

Figure 39: Modem Jumper Location

Maintenance and Troubleshooting

4-10