Topcom Butler 4552/Twin/Triple/Quattro
1.3.1 Standby display
In standby mode, the display shows the time and the handset number:
1.4Handset 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
2.1Connections
Back view of base Butler 4552
TEL
Power cable
Telephone cord
8 | Topcom Butler 4552/Twin/Triple/Quattro |