Panasonic KX-TD612E Installation Manual page 62

Installation
CAUTION
Be sure to turn the power switch "OFF" before you change the jumpers.
Note
a.
To use an ISDN extension line, an external or internal power supply is required. If you use
an internal power supply, set the power supply jumper cover to the "ON" position as below.
b.
To use the ISDN port as the CO line port, set the power supply jumper cover to the "OFF
position.
a. View of Power supply jumper
ON
OFF
62
S0
EXT
1 1
3 3
For CO line use
1 1 1 1
OR
3 3 3 3
Jumper Cover
For ISDN extension line use
1 1 1
S0
EXT
3 3 3
b. View of Power supply jumper
ON 1 1
3 3
OFF
Installation Manual
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