ABB Switzerland Ltd 1KHW001489-EN ETL600
3.5.4.1. G.703 (not supported with ETL600 Release 1)
One interface according to ITU-T G.703 Standard § 4.2.1 is available
on P4LU.
This interface is limited to 64 kbps co-directional application for
transmission with DPLC channel multiplexer.
The physical interface is symmetrically balanced pairs, 4 wire,
120 Ohm terminated to female RJ-45 connector.
3.5.4.2. V.11
One interface according to ITU-T V.11 Standard is available on P4LT,
two are available on P4LU.
These interfaces are limited to synchronous application for
transmission with MOD600 (only one port) or DPLC channel
multiplexer (one or two ports). Available data transfer rates are 9.600
to 320 kbps where the highest rate is always limited by the available
MOD600 modem data rate on a specific PLC link.
The interfaces will provide the clock for the DTE and not accept other
synchronization than from the MOD600 modem.
Maximum generated deviation from nominal data rate for any V.11
channel is ± 1ppm.
Flow control of V.11 interfaces is implemented via the clock line and
signaling (“Indicate”) line in the following manner:
• When the data transfer rate is greater than zero, indicate is
asserted;
• When the data transfer rate is zero, indicate is de-asserted;
For parameters that are configurable for V.11 interfaces, refer to
section 5.3.5.3.2.
The physical interface is a DB15 connectors with the pinout compliant
to ISO 4903. For detailed pinout information refer to section 6.6.3.3.1.
3.5.4.3. V.24
Two interfaces according to ITU-T V.24 are available on P4LT, six are
available on P4LU.
These interfaces are limited to asynchronous full-duplex
communication, for a variety of applications:
• V.24 interfaces with NSK600
Whit NSK600 modem, data transfer rate is limited to a maximum
of 9’600 bps.
• V.24 interfaces with DPLC channel multiplexer
With DPLC channel multiplexer, data transfer rate is limited from
1’200 to 19’200 bps.
• V.24 with channel sharing
V.24 port sharing is possible both for an NSK600 modem and for
one DPLC multiplexer channel.
3-52 November 2005 Structure and Function
To Next Page
Loading...
