Axel AX4000 User's Manual - Manual (Page 31)

Setting-Up the Office Server in Interactive Mode
AXEL Office Server
25
Then, the telnet client service must be configured for the Office Server serial
port. Select [Serial Lines]
→[Line X]→[Network Service] and enter the
following parameters:
- Service Mode: enter the keyword ‘client',
- Service Type: enter the keyword ‘telnet',
- TCP Port: numeric value associated with the telnet service on the target
host (generally 23),
- Host Name / IP Address: host name (or IP address) to which the serial
terminal will be connected.
- Terminal Type: this character string is the value of the UNIX TERM
environment variable,
- Auto Connection: two values:
- 'y': a telnet session is automatically opened when the Office Server
is powered or when the previous telnet session is closed,
- 'n': a telnet session is opened when any key is pressed on the
serial terminal.
- Backup Host Used: possible emergency host (see Chapter 2.6).
- TCP Keepalive Timeout: the keepalive mechanism allows the Office
Server to regularly check its TCP/IP connection status.
IMPORTANT: please, read appendix A.8 to set-up the keepalive
mechanism and to understand consequences of the keepalive use
(especially for routers).
2.5.3 - Connecting other Devices on Unix
Note: if signal control (DTR/DSR, RTS/CTS or DCD) is needed, this device can
be treated in the same way than a modem. So, the solution given on the next
chapter is more suitable.
Two network services allow bi-directional communication with any peripheral:
- tty client: the Office Server opens a connection to the target host. This
connection can be automatically generated when the Office Server is
turned on or when any character is received at the Office Server serial
port. This connection can be set to close if no characters are received
within a specified time.
- tty server: the Office Server waits for a connection request from a host.
This connection can only be closed by the host.