XE2420 Просмотр технического описания (PDF) - Unspecified

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XE2420

The World’s First Complete PLCC Packaged Modem

Unspecified 

XE2420 Modem Registers continued

S28 Inactivity Timer: S28 determines how long the mo-

dem wil remain on line with not data flowing. A 0

in this register disables the inactivity time out.

Range: 0-255

Units Minutes

Default 0

S29 Hook Flash Time: S29 determines the the amount

of time the modem will go on-hook when a hook

switch flash is called for.

Range: 0-255

Units 0.02 Seconds

Default 25

S37 Maximum Line Data Rate: S37 sets the maximum

line data rate or modulation technique that the XE2420

will support for any connection.

Register

Value Communications Supported

0

Maximum Data Rat determined by the

autobaud detect of the AT Command

1

V.23 (1200BPS forward 75BPS back)

2

reserved

3

V.21, Bel 103, 300 BPS

4

Reserved

5

V.22, Bell212A 1200 BPS

6

V.22bis 2400 BPS

XE2420 Modem Responses

Digits

0

1

2

3

4

5

6

7

8

10

16

17

Verbose

OK

CONNECT

RING

NO CARRIER

ERROR

CONNECT 1200

NO DIAL TONE

BUSY

NO ANSWER

CONNECT 2400

CONNECT 1200TX/75RX

CONNECT 75TX/1200RX

Description

Successfully executed command line

300 bps connection

Ring signal detected

Carrier not detected/lost

Error in command line

1200 bps connection

No dial tone detected

Busy signal detected

5 second silence not detected

2400 bps Connection

V.23 Connection transmitting at 1200 BPS

V.23 Connection transmitting at 75 BPS

XECOM

(10)

XE2420

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