OPU-1
UNIVERSAL POWER-LINE CARRIER SYSTEM TYPE OPU-1
GENERAL DESCRIPTION - Rev 7 (May 2019)
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KDMX
Data submodule
Supports
a
communication
channel
for
synchronous,
asynchronous or anisochronous data. It is equipped with an
interface (DB25) that complies with Recommendation V.24/V.28
of the ITU-T (RS-232C).
KVMX
Speech submodule at 16 kbit/s
Submodule for 4-wire or 2-wire telephone termination, with
ADPCM speech encoder at 16 kbit/s.
When 2-wire is configured, two operation modes are obtained:
2-wire exchange-side (it includes ring detection and the
exchange subscriber-loop management) and 2-wire subscriber
side (it includes the subscriber circuits: ring-current generator
and pick up detection).
KAVX
Speech submodule at 4800 bit/s, 6400 bit/s or 8000 bit/s
Submodule for 4-wire or 2-wire telephone termination, with
speech encoder at 4800 bit/s, 6400 bit/s or 8000 bit/s based on
MP-MLQ multipulse encoding.
When 2-wire is configured, two operation modes are obtained:
2-wire exchange-side (it includes ring detection and the
exchange subscriber-loop management) and 2-wire subscriber
side (it includes the subscriber circuits: ring-current generator
and pick up detection).
This termination also allows the transmission of Group 3 fax
signals up to 7200 bit/s in accordance with Recommendations
V.21, V.27ter and V.29 of the ITU-T, as well as modem signals
at 2400 bit/s and 1200 bit/s in accordance with Recommendation
V.22bis.
