Integrators' Reference Manual for For ViewStation EX, ViewStation FX, and VS4000

Chapter 5 - Supporting Advanced Users

RS-232 Interface

RS-232 Control Mode

In Control Mode, the ViewStation EX, ViewStation FX, or VS4000 is

under the control of the PC or other device connected to its RS-232

port.

RS-232 Pass-Thru Mode

Pass-Thru Mode allows two endpoints to pass data from one unit’s

RS-232 port to the other unit’s RS-232 port, using the H.320 call as

the connection. Pass-Thru Mode is a proprietary feature that is only

available if both endpoints are ViewStation EX, ViewStation FX, or

VS4000 systems. Pass-Thru Mode is available only in H.320 mode

(ISDN or V.35/RS-449/RS-530) calls. It is not available in H.323 (IP)

video calls or multi-point calls.

Note

When using Pass-Thru Mode, both endpoints must be set to the

same baud rate.

Four-way call:

presentation mode

None Far Near Far (2) Far (3)

Four-way call:

full-screen mode

None Far Near Far (2) Far (3)

Table 5-1. Expected Display for Each Monitor (Continued)

Condition PIP

Monitor System VGA

or Visual

Concert

VGA

1 2 3 4