Instruction manual

Optional Equipment Installation

025-9416 109

7. Power-up the unit and let it complete its boot sequence (all lights have extinguished,

except the READY LED is on solid).

8. Access the Model 640 database and edit the Dial Click database to enable the option.

Then edit the Trunks database to enable the option on the desired trunk. Refer to the

Model 640 Operating and Programming Manual (Part No. 025-9417) for details on

how to edit these databases.

9. After the databases have been setup, reboot the Model 640 to initialize the dial click

option.

10. Follow the procedure below to adjust the dial click pots.

Level Adjustment

This procedure sets up the dial click decoder for the specific phone line. The following test

equipment is required for the adjustment:

• Touch-tone telephone

• Rotary dial telephone

• Phone cord “Y” connector for 2 telephones

• Extender Card (Part No. 705-9431)

Note: The audio levels recognized by the dial click card depend only on the adjustment pots

(R6, R30). The FROM TEL pot on the trunk card has no effect on dial click decoding.

Follow the steps below to adjust the dial click levels:

1. Connect the two telephones together with the Y connector into the same trunk of the

Model 640.

2. Call into the paging terminal with the touch-tone phone and access a tone+voice

pager previously programmed with lots of voice time (for example, 60 seconds).

3. During the voice recording time, pick up the rotary telephone and hang-up the touch-

tone telephone. Be sure to hang-up, otherwise unwanted noise and phone line loading

may change the sounds of the “clicks.”

4. Start dialing digits while adjusting the appropriate pot on the dial click card. R6 is

located at the top of the card and defines trunk A/C. R30 is located at the bottom of

the card and defines trunk B/D.

Begin the adjustment from the fully counter-clockwise position and rotate the pot clock-

wise until the light on the card blinks consistently with each dial click (two blinks for

each click).

Optimum adjustments vary, and software settings should be re-checked. (Typical pot

setting ≈ midrange.)

5. Once the card is adjusted, power-down the Model 640.