Telos Hx1 - Country Specific Settings

CONFIGURATION SETTINGS | 27
Hx2 Internal Mix-Minus Conguration setting
e Hx2 can operate as two independent hybrids or be congured to perform an internal mix-
minus between the two hybrids.
OPTIONS
Bit 6 Conguration Setting Value
OFF Independent: Internal mix-minus is disabled. [Factory Default]
ON Coupled: Internal mix-minus is enabled.
Feedback Reduction enable
e Hx 1 and Hx2 has an optional Acoustic Echo Canceler in the Studio send path. is can be
used when there is acoustic coupling between a loudspeaker connected to the hybrid output and
a microphone connected to the input. Enabling feedback reduction also causes the ducker to
insert more loss into the announcer-to-caller direction when the caller is dominant.
OPTIONS
Bit 7 Conguration Setting Value
OFF Acoustic Echo Canceler is disabled [Factory Default]
ON Acoustic Echo Canceler is enabled (use in “open speaker” situation)
Reserved bit
OPTIONS Bit #8 is set aside as RESERVED for future use.
OPTIONS
Bit #8 Conguration Setting Value
OFF Reserved for future use [Factory Default]
ON Not Recommended
4.3 Country Specic Conguration Settings
ere is a third bank of DIP switches located inside the Hx chassis. is switch bank is used to
set country specic voltage and line impedance settings and to set the Call Progress Tone to be
detected if Call Progress Tone Disconnect is used.
e Factory Default setting is all 8 bits set to the OFF position (labeled OPEN on the
switch). is default conguration is set for operation within the United States and Canada
(North American telephone line characteristics, and the ‘precise’ dial-tone signal for Call
Progress Tone Disconnect).
You must remove the top cover of the chassis to gain access to third bank of DIP switches
located on the Hx motherboard. e chassis cover should only be removed by a qualied
technician. AC power must be disconnected prior to removing the cover.