Hosiden Besson TEST TELEPHONE 290 Manual page 2

TEST TELEPHONE 290
Hosiden Besson Ltd Test Telephone
290
T he has been
It has been designed for rugged environmental use and the
cordage can be removed for replacement when necessary without opening
the Test Telephone.
It can signal in LO and DTMF modes, can present a high impedance
A
Monitor, and contains LED polarity indication and a Tonecaller. maximum
10
of telephone numbers may be stored in its reprogrammable memory.