Avaya 6424D+M User Manual download pdf (Page 40)

asynchronous data character end-to-end as information, rather than checking or

generating a parity bit. V.120 data calls are accepted by your ADM from endpoints

provided that the parity setting carried within the call setup information indicates a valid

character size and parity combination: 8-bit none, 7-bit odd, 7-bit even, 7-bit mark, or

7-bit space. V.120 data calls initiated from your ADM contain parity setting

information in the call setup information which is fixed at 8-bit no parity regardless of

the local mode parity setting. In other words, no matter what the setting of the parity

option (odd, even, mark, or space), your ADM always originates V.120 data calls with

call setup information coded as 8-bit no parity. If the called V.120 endpoint requires an

exact match in parity before it will accept an incoming call from your ADM, the called

V.120 endpoint must be set to 8-bit no parity.

To set this option from an attached terminal do the following:

1 Type

set parity

value (for example, set parity odd).

2 Change your data terminal’s Parity to match this value. (See your data terminal’s operating

manual for instructions.)

3 Press

RETURN

You can also change the Parity option setting of the ADM (when the Autoadjust option is on) by

pressing the

BREAK

key, typing

and then pressing

RETURN

Note: Using autoadjust only temporarily activates the current speed and parity. You can store

speed and parity by setting the options through the voice terminal keypad or by copying

data option profile pA to p1 (see "Data Option Profiles", later in this chapter).

Rec.flow (Receive Flow Control)

Option Values: xon/xoff, eia, off

Applicable Data Protocols: X.25, Mode 3, all V.120 modes

This option determines which method is used to control the flow of data from the ADM to your

data terminal.

When you select xon/xoff, your ADM expects the data terminal to send an xoff character (with

proper parity) when it is not ready to receive data. When it is ready to receive data, the data

terminal sends an xon character (with proper parity) to the ADM to restart the flow of data. This

setting is appropriate for most users.

Select eia, if your data terminal uses the Request-to-Send (RTS) lead to indicate whether it is

ready to receive data. When it is not ready, your data terminal turns off RTS. When it is ready to

receive data, it turns on RTS.

When you select off, your data terminal has no way to control the flow of data from the ADM.

Once the data terminal sends an xoff character or turns off RTS, the ADM may transmit up to 10

additional characters to the data terminal.

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