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i2021 ISDN Teleset
TABLE OF CONTENTS
iv
View ............................................................................................60
Protecting Keys from Being Overwritten.........................................61
Disabling the Automatic Download.................................................62
Protecting Specific Keys from an Automatic Download....................62
Key Clicks....................................................................................63
Disable Logging............................................................................63
Testing.........................................................................................63
MAINTAINING THE TELESET..........................................................65
Checking the FW Version..............................................................65
Loading FW..................................................................................65
Troubleshooting Problems.............................................................65
GLOSSARY .....................................................................................67
INDEX...............................................................................................II
TABLE OF FIGURES
FIG. 1: TOUCHTONE KEYPAD................................................................... 3
FIG. 2: LINE AND POWER JACKS .............................................................. 5
FIG. 3: NT1 LEADS ................................................................................ 6
FIG. 4: POWERING A TELESET (S/T) WITH AN EXTERNAL POWER SUPPLY....... 6
FIG. 5: TERMINATING RESISTOR RANGE.................................................... 7
FIG. 6: TERMINATING RESISTOR SETTINGS FOR FARTHEST TELESET ............. 8
FIG. 7: TERMINATING RESISTOR SETTINGS FOR EQUAL DISTANCE TELESETS.. 8
FIG. 8: CALLING PARTY NUMBER.............................................................44
FIG. 9: CALLING PARTY NAME.................................................................45