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Installation
24
025-9368H
Upgrading to a New Version of Software
From time to time, new revisions of software are released. These can range from significant changes
adding new or enhanced features to minor changes correcting documented defects. The procedure
outlined below will allow you to perform a successful upgrade and retain your existing
programming.
1.
Make a current archive of your existing programming. See Device configuration and Billing
data in Section 4.
2.
Install the new EPROMs. See Installing new EPROMs in Section 6.
3.
Access the unit by the most convenient method and reset all programming from the
Diagnostic Menu (items 2 and 3). This ensures that any new changes to the database will be
properly initialized.
4.
Upload your archived programming. This will restore your existing programming and any
new items with be initialized to default.
5.
Place some calls and verify proper operation.
Whenever upgrading to a new or later version of software, resetting all programming with the new
software ensures any new or changed features are properly initialized.
Summary of Contents for 748
Page 2: ......
Page 68: ...Operation 54 025 9368H Notes...
Page 110: ...Programming 96 025 9368H Notes...
Page 216: ...Feature Set Reference 202 025 9368H Notes...
Page 219: ...Repair 025 9368H 205 MODEL 7XX AUDIO BLOCK DIAGRAM 006 0077A...
Page 225: ...Repair 025 9368H 211 MODEL 7XX CONTROL BOARD 008 9793D Schematic Sheet 1 of 5...
Page 226: ...Repair 212 025 9368H MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 2 of 5...
Page 227: ...Repair 025 9368H 213 MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 3 of 5...
Page 228: ...Repair 214 025 9368H MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 4 of 5...
Page 229: ...Repair 025 9368H 215 MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 5 of 5...
Page 230: ...Repair 216 025 9368H MODEL 7XX CONTROL BOARD 702 9793D Silkscreen...
Page 233: ...Repair 025 9368H 219 MODEL 7XX SINGLE E E CARD 008 9794A Schematic...
Page 234: ...Repair 220 025 9368H MODEL 7XX SINGLE E E CARD 702 9794A Silkscreen...
Page 236: ...Repair 222 025 9368H MODEL 4XB VOICE CARD 008 9236F Schematic...
Page 237: ...Repair 025 9368H 223 MODEL 4XB VOICE CARD 702 9236F Silkscreen...
Page 239: ...Repair 025 9368H 225 MODEL 4XB DIAL CLICK BOARD 008 9242E Schematic...
Page 240: ...Repair 226 025 9368H MODEL 4XB DIAL CLICK BOARD 702 9242E Silkscreen...
Page 254: ...Quick Reference 240 025 9368H Notes...
Page 258: ...Specifications 244 025 9368H...
Page 259: ...Specifications 025 9368H 245...