Paradyne 9820-8M Manual De Usuario
Configuration Options
4-21
9820-A2-GB20-20
June 2000
Configuring the User Data Port
Select Physical to display or change the physical characteristics of the user data
port connected to the DTE (see Table 4-6).
port connected to the DTE (see Table 4-6).
Main Menu
→
Configuration
→
Data Ports
→
Physical
The data rate of the user data port is automatically set to the rate of the network
interface.
interface.
Table 4-6.
User Data Port Physical Interface Options (1 of 2)
Port Type
Possible Settings: E530, V.35, X.21
Default Setting: V.35
Default Setting: V.35
Selects the type of port to be used for the user data port.
Display Conditions – This option does not appear for Model 9820-45M, for which the
port type is HSSI.
port type is HSSI.
E530 – The port is an EIA-530-A-compatible DCE. An EIA-530-A-compatible DTE can
be directly connected to the DB25 connector.
be directly connected to the DB25 connector.
V.35 – The port is a V.35-compatible DCE. A V.35-compatible DTE can be connected to
the DB25 connector by using an adapter cable.
the DB25 connector by using an adapter cable.
X.21 – The port is a V.11/X.21-compatible DCE. A V.11/X.21-compatible DTE can be
connected to the DB25 connector by using an adapter cable.
connected to the DB25 connector by using an adapter cable.
Transmit Clock Source
Possible Settings: Internal, External
Default Setting: Internal
Default Setting: Internal
Determines whether the DTE’s transmitted data is clocked into the FrameSaver unit by
its internal transmit clock or by the external clock provided by the DTE.
its internal transmit clock or by the external clock provided by the DTE.
NOTE:
Changing settings for this configuration option causes the FrameSaver unit
to abort any physical port tests, including any DTE-initiated loopback tests.
to abort any physical port tests, including any DTE-initiated loopback tests.
Display Conditions – This option does not appear for Model 9820-45M, or when Port
Type is set to X.21.
Type is set to X.21.
Internal – The FrameSaver unit uses the interchange circuit DB (ITU 114) – Transmit
Signal Element Timing (TXC) (DCE source) for timing the incoming data.
Signal Element Timing (TXC) (DCE source) for timing the incoming data.
External – The DTE provides the clock for the transmitted data, and the FrameSaver
unit uses the interchange circuit DA (ITU 113) – Transmit Signal Element Timing (XTXC)
(DTE source) for timing the incoming data.
unit uses the interchange circuit DA (ITU 113) – Transmit Signal Element Timing (XTXC)
(DTE source) for timing the incoming data.