ADTRAN Express 3000 SP Información técnica descargar pdf (Pagina 51)

Chapter 2 - Technical Information

5 DTR = 1

6 RTS = 1

7 Wait for DSR high

8 DSR = 1 AND/OR

DCD = 1 (AND/OR

DSR = 1

)

9 Go to connected state

10 DATA FLOW STARTS DATA FLOW STARTS

11 User Hang-up Far End Hang-up

12 RTS = 0

DTR = 0

CRQ = 0

All signals go low if Far

End or User hang up

is detected

DSR= 1 to 0, OR

DCD= 1 to 0 OR CTS=

1 to 0

A falling edge on DSR

or DCD or CTS is

interpreted by the

FX/VS4000 as a

hang-up

13 IDLE

DTR = 0

RTS = 0

CRQ = 0

IDLE

RI = 0

DLO = 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. DSR is used as a ring-in indicate if DSR is set to ANSWER in the

V.35 Advanced Setup screen.

d. If RS-366 Dialing is not enabled, auto answer must be enabled.

If auto answer is not enabled, ring-in will be ignored when in

non-dialed mode.

e. If DCD filter is set to ON in the V.35 Advanced Setup screen,

the system will not react to a low DCD until DCD has been low for

60 seconds.

Table 2-23. Inbound Call State Machine (Continued)

State

ViewStation FX or

VS4000 Signals

Network Signals

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 149 150

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ADTRAN Express 3000 SP Información técnica Pagina 51

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