Alcatel 060170-10, User Manual, Page: 58 / 430

Voice Switching Daughtercard — Analog
Page 2-24
Ringing Frequency
The jumper for ringing frequency ( P34 ) is used to set the frequency of the continental ring
tone in Hertz (Hz) on the VSA daughtercards.
Default: 20 Hz ; requires shunts on pins 2_3 and pins 5_6 (No. Amer./European Spec.).
16 Hz ; requires shunts on pins 2_3 and pins 4_5 (European Specification).
25 Hz ; requires shunts on pins 1_2 and pins 5_6 (European Specification).
Other VSA Jumpers
The following jumpers are factory set on the VSA daughtercard and should not be changed by
the customer unless under the direction of Customer Support.
Jumper No. Shunt Position Default Description
P20 Pins 1_2, Pins 4_5 yes Reserved
P31 Pins 2_3, Pins 4_5 yes Backplane interface (Hbus)
P46 Pins 2_3 yes Reserved