Serial Server Properties
Manual Document Number: VESR9xx-4210m
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RS-422
- Point-to-point communications using a transmit pair and a receive pair. RS-
422 can operate at higher speeds and longer distances than RS-232. Typically uses
two shielded twisted pairs and screw terminals but DB-9 connectors are also used on
VESR9xx serial servers.
RS-485 2-wire
- Similar speed and distance specifications as RS-422 but allows
multidrop connections. Typically uses one shielded twisted pair and screw terminals
but DB-9 connectors are also used on VESR9xx serial servers.
RS-485 4-wire
- Similar speed and distance specifications as RS-422 but allows full-
duplex connections. Typically uses two shielded twisted pairs and screw terminals but
DB-9 connectors are also used on VESR9xx serial servers..
Select the appropriate serial interface mode for the type of connection
between the serial server's serial port and the device connected to it.
Note: Refer to the Appendix D for connector and pin-out details.
Serial Server Name
Serial Server Name
is a unique name assigned to the serial server. It must
be a valid hostname as defined by RFC-952 and RFC-1123. The rules are:
It must consist only of the characters "A" to "Z", "a" to "z", "0" to "9" or "-"
It can start or end with a letter or a number, but it must not start or end with a "-".
It must not consist of all numeric values.
Server Serial Port Number
The
Server Serial Port Number
of the currently selected port is shown in
this field.
VESR901-x serial servers feature one serial port.
VESR902D-x and VESR902T-x serial servers feature two serial ports.
Serial Watchdog
Serial Watchdog
controls the duration of serial inactivity when the serial
port is determined idle and causes all connections for that serial port to be
forced closed. The range is 1 through 65535 milliseconds.
