Comelit MT 4478A TAS User Manual
Page 13
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3.2.2
Internal DIP-switch and Jumper settings
•
Disconnect the unit from the power supply.
•
Remove the four screws on the casing's lower panel and open
the lower lid.
•
Set the selected keyboard address using the SW1 to SW4
switches of the DIP-switch.
•
Move the Jumper to the selected position.
•
Close the casing of the art. 4478A/TAS System Keyboard.
1 2 3 4 5 6 7 8
ON
SW 4
terminated
(120 ohm)
unterminated
SW 3
SW 2
SW 1
KEYBOARD
ADDRESS
SW
1
SW
2
SW
3
SW
4
1
OFF OFF OFF OFF
2
ON
OFF OFF OFF
3
OFF
ON
OFF OFF
4
ON
ON
OFF OFF
5
OFF OFF
ON
OFF
6
ON
OFF
ON
OFF
7
OFF
ON
ON
OFF
8
ON
ON
ON
OFF
9
OFF OFF OFF
ON
10
ON
OFF OFF
ON
11
OFF
ON
OFF
ON
12
ON
ON
OFF
ON
13
OFF OFF
ON
ON
14
ON
OFF
ON
ON
15
OFF
ON
ON
ON
16
ON
ON
ON
ON
3.3 OPTIONAL ACCESSORIES
•
DB-02 Distribution Box with D-9M Cable Connector to connect
two or more System Keyboards.
Via Don Arrigoni, 5 24020 Rovetta S. Lorenzo (Bergamo)
http://www.comelit.it – E mail: