Handset Indicator (Led); Telephone Installation; Connections - Topcom Butler 4502 User Manual

Topcom Butler 4502/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 4502
8
Telephone cord
Power cable
TEL
Topcom Butler 4502/Twin/Triple/Quattro