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Topcom Butler 4552/Twin/Triple/Quattro
1.3.1 Standby display
In standby mode, the display shows the time and the handset number:
12-05 HS1
1.4
Handset indicator (LED)
The handset LED has following function:
•
ON when the external line is busy
•
OFF when all handset are in stanby mode
•
Flashes on all handset when there is an incoming call
2
Telephone installation
2.1
Connections
Back view of base Butler 4552
8
Power cable
Telephone cord
Topcom Butler 4552/Twin/Triple/Quattro
TEL
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