Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000

Table 2-24. Non-Dialed User-Initiated Call State Machine

 

ViewStation FX or

 

State

VS4000 Signals

Network Signals

 

 

 

1

Initial State:

Initial State:

 

DTR = 0a

RI = 0

 

RTS = 0b

DLO = 0

 

CRQ = 0

ACR = 0

 

 

DSR = 0

 

 

 

 

USER INITIATES

 

 

CALL

 

 

 

 

2

DTR = 1a

 

3

RTS = 1b

 

4

 

DCD = 0 to 1

 

 

 

5

DATA FLOW STARTS

DATA FLOW STARTS

 

 

 

 

User Hang-up

Far end hang-up

 

 

 

6

RTS = 0b

DSR= 1 to 0, OR

 

DTR = 0a

DCD= 1 to 0

 

CRQ = 0

A falling edge on DSR

 

 

 

All signals go low if far

or DCD is interpreted

 

end or User hang up is

by the FX/ VS4000 as

 

detected

a hang-upc

7

IDLE

IDLE

 

DTR = 0a

RI = 0

 

RTS = 0b

DLO = 0

 

CRQ = 0

ACR = 0

 

 

DSR = 0

 

 

 

a. DTR does not act as shown but remains high if DTR is set to ON in the V.35 Advanced Setup screen.

b. RTS does not act as shown but acts as a resync pulse if Security/Crypto Resync is set to ON.

c. If DCD filter is set to ON in the V.35 Advanced Setup screen, the system does not react to a low DCD until DCD has been low for 60 seconds.

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Polycom EX4000, FX4000, VS4000, EX, FX, VS4000 manual User Initiates Call

EX, FX, VS4000, EX4000, FX4000, VS4000 specifications

Polycom is a leading name in video conferencing and collaboration solutions, and their product line, including the EX4000, FX4000, and VS4000, exemplifies their commitment to delivering high-quality communication experiences. Each of these systems is designed to meet specific needs in the realm of video conferencing.

The Polycom EX4000 is a powerful video conferencing solution tailored for small to medium-sized conference rooms. One of its main features is the use of High Definition (HD) video, ensuring that participants enjoy clear and lifelike video in every meeting. The EX4000 is equipped with the Polycom HDX technology that enables 720p resolution, ensuring that visual detail is crisp and clear. Additionally, it incorporates advanced audio technologies such as Polycom StereoSurround, which enhances the audio quality by providing a more immersive experience, making remote participants feel as if they are in the same room.

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The Polycom VS4000 provides advanced video conferencing capabilities for larger organizations with a focus on scalable solutions. It includes features such as secure multipoint video conferencing, allowing multiple locations to connect seamlessly. The VS4000 uses the Polycom Converged Conference control, which simplifies meeting management, allowing users to initiate and manage calls with ease. The VS4000’s ability to integrate with various communication and collaboration tools makes it a flexible choice for organizations looking to enhance their communication capabilities.

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