Using Polarity Reversal Feature - Davolink DV-332 User Manual

DV-332 Analog/Digital User Guide
FXS 1 07077003241 11
FXS 1 201
FXS 2 07077003242 11
FXS 2 202
FXS 3 07077003243 11
FXS 3 203
FXS 200 07077003244 11
NET 0 *200
NET 0 0~
NET 0 ~
NET 0 ***??
==========================================================================
*INTF : Invalid Interface
==========================================================================
GW/CONFIG/ROUTE>
Setting as above, receiving port at FXS number 0 & transmitting to FXS number 3 under on-line, it
shall press hook flash & press number "203"(extension number), it makes ring at phone for number
3 port. Finally, answer the phone, line will be connected.

8.6 Using polarity reversal feature

When it connects to Keyphone system or PBX system, inversion signal at premises switch board can
use as Billing purpose. In this case, internal or external line on premises switch board shall connect
to FXS/FXO port at GW, there are no differences between Tip/Ring line unless inversion signal uses.
However, inversion signal shall use, Tip & Ring's lines shall be divided into because two lines will be
checked by voltage features for each port. If it connects initially, even it doesn't use, two lines
shall be exchanged & connected if port's LED turns on.
Therefore, if it connects to premises switch board which is using inversion signal, the inversion
signal shall provide from FXS port at GW to premises switch board. Establishment is as following.
GW/CONFIG/FXS> show
===========================================================================
FXS Configurations Show
===========================================================================
Voice Output Gain
-2 -2 -2 -2
PCM Input Gain
0 0 0 0
3
3
3
0
0
0 02
5
(vgain) : dB
(igain) : dB
86
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
220.120.246.204 C
0.0.0.0 C
0.0.0.0 C
0.0.0.0 C