Nortel Networks i2021 Series - Manual (Page 6)

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
F IG . 1: T OUCHTONE K EYPAD ................................................................... 3
F IG . 2: L INE AND P OWER J ACKS .............................................................. 5
F IG . 3: NT1 L EADS ................................................................................ 6
F IG . 4: P OWERING A T ELESET (S/T) WITH AN E XTERNAL P OWER S UPPLY ....... 6
F IG . 5: T ERMINATING R ESISTOR R ANGE .................................................... 7
F IG . 6: T ERMINATING R ESISTOR S ETTINGS FOR F ARTHEST T ELESET ............. 8
F IG . 7: T ERMINATING R ESISTOR S ETTINGS FOR E QUAL D ISTANCE T ELESETS .. 8
F IG . 8: C ALLING P ARTY N UMBER .............................................................44
F IG . 9: C ALLING P ARTY N AME .................................................................45