SCS1620 Product Manual
Lightwave Communications
Page
76
www.lightwavecom.com
8.4
Selecting a Device Port
To select a device port, the user must type
select
select
select
select
along with a device port. The
user must also have permission to connect to a device port as defined by the
system administrator in their user profile. For example, to connect to a server
named Alpha on device port 2, the user may either type
select
select
select
select
Alpha
,
select
select
select
select
2
. If the system administrator has determined that the user does not have
permission to access a server, the SCS1620 will display the message
NO
ACCESS TO DEVICE CHANNEL
, and the connection will not be made.
The user may exit from their current device port first by using the
exit
exit
exit
exit
command or selecting another device port. A user may select a server that is
already selected by another user. When a server has been selected, the prompt
will change to show which server has been selected by displaying the user ID, a
dash, and then the server name in the general form
USER_NAME-
SERVER_NAME>
. For example, if the user GEORGE selects Alpha, the prompt
would read
GEORGE-Alpha>
.
When this prompt is displayed, the user is in monitor mode. There is no direct
communication between the user and the server. Any output from the server is
saved to a buffer that may be accessed by the user (see Section 5.7, Using the
Buffer), but the user may issue no commands to the server. If the user desires to
issue commands to the server, they must enter direct mode (see Section 5.6,
Direct Mode).
8.5 Direct
Mode
If a user desires to interact directly with a server rather than only monitor its
output, then they must enter direct mode. To enter direct mode using the
direct
direct
direct
direct
command, the user may select a device port as outlined in Section 5.6, Selecting
a Server. Then at the prompt, the user must use the command
direct
direct
direct
direct
. The
user may also select a device port and enter direct mode in one step by using the
dir n
dir n
dir n
dir n
command. The
dir n
dir n
dir n
dir n
command must have either the device port
number or the name assigned to the port as the command qualifier.
The user's terminal will then be directly connected to the server, and will act as if
the terminal was physically connected to the server. The SCS1620 displays the
last page of the device buffer along with a system information message indicating
which device port is selected as the user enters direct mode.
To escape from direct mode, the direct mode escape sequence must be used.
The direct mode escape sequence is a series of two to five characters that allow
the user to leave direct mode and return to monitor mode. The factory default for
the direct mode escape sequence is
<ESC> A
(escape key, then uppercase "a"),
but the user may change the sequence by using the command
editesc
editesc
editesc
editesc
.
