Installation
28
025-9368H
Dial Click Option (950-9589) Installation
These installation instructions describe installing the Dial Click option (950-9589) into a Model 748.
You should find the following parts included with the kit:
Quantity
Part Number
Description
Location
1
220-0106
#4-40 x 5/16 pan Philips
1
321-0751
601-0661 (ASIC)
U35
1
702-9242
Dial Click card
J7
This option kit is serial number specific. The invoice should indicate which serial number the kit was
ordered for. If you are installing multiple upgrade kit, you will need to match the kits to the units
before beginning the upgrades. If the AUX LED slowly flashes, this is the problem.
1)
Remove power from the unit.
2)
Remove the top cover from the unit.
3)
Locate J7 (between the AUX and TRANSMIT LEDs) on the main board.
4)
Install the Dial Click card (702-9242) into J7 using the standoff on the other side of the POWER
LED for support. Secure the card to the standoff with the #4-40 x 5/16 screw.
5)
Locate U35 (directly behind the connect switch), remove it and set it aside.
6)
Install new the ASIC in U35 being careful to align the orientation notch and watch out for bent
pins.
7)
Connect a local terminal to the unit's serial port and apply power to the unit. Enter the program
mode, at the Main menu select Options and verify that the Dial Click decode option appears on
the list.
8)
From the Main menu, select the Diagnostic menu. Select the item for the Dial Click decode test.
If an error tone is given when you try to select this item, remover power from the unit and try re-
installing the card (the software cannot find it).
9)
Refer to the Dial Click adjustments under the Installation procedure in this section to complete
the installation.
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