Hirschmann VIP multimedia LAN adapter, User Manual

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Hardware Installation 21
Connecting Data Terminals
VIP
features two serial interfaces, at the front and the back panel respec-
tively. They serve different purposes and cannot be used interchangeably,
as is explained in the following:
Terminal Port
For local control and configuration of the
VIP
unit a data terminal (e.g. a
PC running a standard terminal program) can be connected to the serial
interface labelled Control Terminal on the rear panel. The 9-pin DSUB con-
nector features a standard RS-232 interface that can be connected to any
PC’s COM-port.
A standard terminal program may be used to communicate with the
VIP
.
The default parameters are set to 19200 baud with 8 bits of data, one stop
bit and no parity bit (8N1).
An online help function can be evoked by typing ’?’ in the terminal win-
dow. For more information on the command set refer to chapter 4.
Transparent Data Port
The second serial interface on the front panel of the
VIP
offers a transpa-
rent serial data channel between the receiver (e.g. COM-port of a PC)
and the
VIP - VTx
transmitter. Typical applications for the transparent data
channel are remote control of peripheral equipment, e.g. pan/tilt/zoom
facilities of selected cameras. In addition this channel can be used for
remote control of any external device with a serial interface. The serial
data is transferred in parallel to the video and audio data.
Note that transmission of transparent data is enabled only after a video
connection has been established. Also note that the RS-232 interface for
the transparent data port does not support hardware flow control.