Specifications

• Lift the telephone off hook and press (and release) the Connect button. A relay will click and the
DAI-2 will connect to the telephone. Enter the attention code ❊❊❊❊ on the telephone keypad
activate the DAI-2. You will hear two short beeps to confirm that you are connected.
• Operate the DAI-2 as you would normally, making any changes you need to the system
programming.
• This step is extremely important! When you are finished, disconnect the ribbon and telephone
cables. Replace the jumper at JP1 to its original position for normal operation as shown in Figure
4.2. Arrows on the circuit board indicate the correct position for the jumper. Failure to install the
jumper properly may cause damage to the DAI-2 or other equipment.
• Slide the circuit board back into the case, replace the rear panel and secure it with the two screws
removed at the beginning of this procedure.
4.4 Operation on a Shared Telephone Line
The DAI-2 can share a telephone line with other automated equipment. To avoid complications and unexpected
interactions, it is not usually desirable to have more than one device seize the telephone line. However, with proper
planning a functional solution can be reached.
4.4.1 Transfer from a Dial-up Remote Control
In the scenario, the DAI-2 and a dial-up remote control (such as the Sine Systems RFC-1/B) share a telephone line.
Although the DAI-2 is normally installed at the studio, situations do exist where the DAI-2 is installed at a transmitter
site. The remote control will probably be used more often than the DAI-2 so it will be given priority. When it is not the
desired target device, it will be used to pass the call over to the DAI-2.
Make sure that the remote control is programmed to answer the telephone before the DAI-2. The factory default
setting of both the DAI-2 and the RFC-1/B is to answer on the second ring. To eliminate this conflict, program the
DAI-2 to answer on the fourth ring. Details of changing the ring number to answer are given in the programming
section of this manual. When the ring number is adjusted correctly, the remote control should always answer the
line first. Connect the telephone line to both devices.
Figure 4.3; Relay panel connections
On the DAI-2 relay panel there is a screw terminal connection labeled “MAN”. This connection bridges the switch
contacts of the manual “Connect” switch located on the rear panel of the DAI-2. Pulling this contact to ground is
exactly like pressing the switch. Connect the MAN and GND screw terminals to an unused set of normally open relay
contacts on the remote control relay panel (Sine Systems model RP-8). When the appropriate control relay is
activated, the MAN terminal will be pulled to ground. For this example, let’s assume the control relay is the On/Raise
on channel 7 of the RFC-1/B.
DAI-2 Operation page 4. 4