DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Commands
8-64change system-parameters maintenance
8
Modem Connection
On page 3 of the example forms shown below, there are 11 fields that are hidden
when the
Modem Connection?
field is set to
internal
. In this example the
Modem Connection
field is set to
external
, and these additional 11 fields are
visible.
The first 2 fields on page 3 help setup the data format for the serial data from the
switch to the modem.There are only two valid combinations for these 2 fields:
■ Data Bits = 8, Parity = None
■ Data Bits = 7, Parity = (odd, even, mark, or space)
The remaining fields are listed below:
SPE
Optional
Boards:
These fields indicate whether a Disk circuit pack is present in the system,
and which Packet Interface slots are administered. If a Packet Interface
circuit pack is physically present, the corresponding Packet Interface field
is set to y when the system boots, and no change to that field is allowed. If
the system is equipped with duplicated SPEs, a Packet Interface field is
set to y when either SPE carrier contains a Packet Interface circuit pack in
the corresponding position. If a Packet Interface circuit pack is not
present, then the value for the Packet Interface field is read from
translation data stored on disk or tape. If the field is set to n, a Packet
Interface circuit pack may be administered by changing the
corresponding Packet Interface field to y.
Modem
Connection
Internal or external (internal)
Modem Name
This field is 20 characters long and will permit alpha-numeric
characters to provide a unique qualifier for a given modem. ( )
RTS/CTS
Enabled
This field will inform the modem that communication with the data
source UART will be driven with RTS/CTS flow control. This field is 6
characters long and is case in-sensitive. (&H1)
Asynchronous
Data Mode
This field will configure the modem as an asynchronous
communications device. This field is 8 characters long and is case
in-sensitive. ( )
DTE Auto-Data
Speed
This option will adjust the speed of the data source (DTE) UART to
the outgoing (modem-to-modem) data rate. So, at maximum this
speed would be 9600 baud. This field is 6 characters long and is
case in-sensitive.
Note that this field sets the link speed between the switch and the
modem. It does not set the speed of the modem. It is not desirable
to have the serial data fill the modem buffer faster than the outgoing
data rate especially because data compression is disabled. ( )
