Comrex Bluebox Manual

Stl backup mode

Bluebox STL Backup Mode

The BlueBox has a special feature called STL Backup Mode that allows the unit to automatically initiate and

maintain a POTS codec call. When this feature is engaged, the BlueBox will dial the number stored in Qdial

01, and redial the call should the line drop for any reason. STL Backup Mode is engaged from the "Hidden

Menu" (this menu is hidden to prevent casual users from accessing it and setting parameters that will cause

the BlueBox to malfunction). Before STL Backup Mode can be utilized, a jumper must be moved on the main

board and a contact closure must be connected to the Multipurpose Port.

The following steps detail the necessary modifications and programming instructions to set the BlueBox for

STL Backup Mode:

Step 1

Make sure that your BlueBox is turned OFF and removed from AC power. This step describes the procedures

for opening up the BlueBox and moving the jumper on the main board.

Start by removing the screws on the three side panels, (7) screws total.

Then turn the unit over and remove the (6) large, self-threading screws located on the outer edge.

Remove the (7) smaller screws that are in the slotted holes. The bottom should now come off.

Turn the unit over so it is face-up. Remove the black screw located under the power switch; the main board

will drop down.

Locate J23 (see Figure 1). Move the midgie down by one pin, leaving the pin closest to the RJ11 jack open.

Note: The jumper must be restored to its original position before using the Multipurpose Port for upgrading

and/or cellular connections.

Slide the main board in and reassemble.

Note: Only start the slotted hole screws and tighten down after all other screws are in.

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Table of Contents

Do you have a question about the Bluebox and is the answer not in the manual?

Page 1 The BlueBox has a special feature called STL Backup Mode that allows the unit to automatically initiate and maintain a POTS codec call. When this feature is engaged, the BlueBox will dial the number stored in Qdial 01, and redial the call should the line drop for any reason. STL Backup Mode is engaged from the “Hidden Menu”...
Page 2 “waiting” mode when the contact opens. If you were to jump these two pins together with a wire on a plug, the BlueBox would repeatedly dial while in STL Backup Mode, with no way to hang up except by pressing the Hangup key causing the unit to exit STL Backup Mode.
Page 3 Next, close pins 1 and 5 on the Multipurpose Port, and the BlueBox will start dialing the number in Qdial 01. Note: While in this mode the BlueBox will only initiate the call when pins 1 and 5 are closed or tied together.