EA915X DIGITAL TELEPHONE HYBRID
INSTRUCTIONS FOR USE
EELA AUDIO Het Riet 8A
5431NM CUIJK The Netherlands
Page 14
Bypass.
Is to activate the situation where the digital echo canceller is not used (bypassed).
Auto answer.
Process of automatically answering an incoming call over the telephone.
TB.
Is the abbreviation used for
T
alk
B
ack.
Faults list.
Always make sure that the unit receives supply voltage.
Connection is lost at activating the hybrid.
If the connection is lost when switching the hybrid on and the CALL-led did indicate an incoming call in a
normal way could indicate that the telephone line is connected to the "PHONE" terminal instead of the
"LINE" terminal.
R-bal en C-bal alignment not satisfactory.
Jumpers are possibly set for use of the wrong line-type, or different line conditions such as extreme short or
long lines.
Echo canceller does not respond.
If the echo canceller does not give extra damping, it is possible the hybrid still is in bypass mode.
Echo canceller does not give sufficient damping.
Try making another setting of the R-bal and C-bal trimpots. Subsequently try again to minimize the
crosstalk using the UPDATE switch (Hold it for approx. 20 seconds).
Echo canceller setting does not stop after 2 seconds.
Continuous automatic adjustment is selected by means of dilswich setting.
Hybrid can not be switched off locally or remote.
Hybrid is switched ON externally and thus can not be switched OFF locally by means of its frontpanel
switch or hybrid is switched ON locally by means of the frontpanel switch and thus can not be switched off
remotely.
