Mux600 Dplc Channel Multiplexer And V.24 Port Sharing - ABB ETL600 Instruction Manual

ETL600
case of a noisy line, Reed Solomon (=RS) forward error correction
may be enabled.
•
Narrowband interference detection:
When narrowband interferers are present in the MOD600
frequency band, data throughput may be increased by enabling
narrowband interference detection. Upon startup of the
communication, the frequencies of narrowband interferers are
detected and in the sequel no longer used by MOD600. This allows
to spend more power to the frequencies not impaired by
narrowband interferers. ABB has filed a patent for this method.
The signal converter is equipped with one interface which can be
routed directly to V.11 port 1 or to the DPLC channel multiplexer of
MUX600.
3.5.3.

MUX600 DPLC Channel Multiplexer and V.24 Port Sharing

MUX600 consists of a DPLC channel multiplexer for transmission of
individual channels over one aggregate channel on MOD600 modem,
a Port Sharing Device for channel sharing of up to four V.24 ports and
some switches for assignment of the V.24 ports to NSK600 modems
or the DPCL channel multiplexer.
5)
G.703 Port 1
V.11 Port 1
V.11 Port 2
MUX600
V.24 Port 1
V.24 Port 2
V.24 Port 3
V.24 Port 4
V.24 Port 5
V.24 Port 6
Legend for
Switches:
1) Port assignment: to MUX600/(MOD600) / Off
2) Port assignment: to MUX600 / to NSK600 / Off
3) Port Sharing operation: On / Off
4) MOD600 operation: V.11 Port 1 / MUX600 / Off
5) Not supported with ETL600 Rel.1
Fig. 3-36
Structure and Function
1KHW001489-EN
1)
DPLC Channel
Multiplexer
V.24 Port
Sharing
Device
3) 2)
- alternate position (for MUX600 enable)
- default position (mandatory for MUX600 disable)
- off position ( : mandatory for MUX600 disable)
MUX600 Block Diagram
ABB Switzerland Ltd
4)
November 2005
MOD600 Modem
NSK600 Modem 1
NSK600 Modem 2
NSK600 Modem 3
NSK600 Modem 4
3-49