Connection
Analogue line
Telephone line
input
Digital line with digital network
terminal (DNT)
Telephone line
input
T
N
R
Note : For complete protection, the power supply circuit for the telephone equipment connected to the 230 VAC mains
supply must also be protected against overvoltages by a voltage surge protector
Indication of end of life
Un: 200 V
In: 10 kA
Up: 260 V
Normal operation
Important : When the surge protector short-circuits the telephone line is out of order (no dialling tone). The surge
protector must be replaced
To terminals 1-3
Voltage surge
protector
1
3
Cat. No. 038 28
Digital output(s)
To terminals 1-3
Voltage surge
protector
Cat. No. 038 29
2
4
Analogue output(s)
To terminals 1-3
Voltage surge
protector
Cat. No. 038 28
Z
2,5 mm
Z 0,50 m
7
green
8
2
min.
Un: 200 V
In: 10 kA
Up: 260 V
Surge protector
short-circuit
Orange