User`s manual

Data Options and Profiles
Rec.flow (Receive Flow Control)
Option Values: xon/xoff, eia, off
Applicable Data Protocols: X.25, Mode 3, and 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.
Once the data terminal turns off RTS, flow from the ADM to the data terminal
stops immediately. (This applies to Single-Stream only.)
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, the ADM may transmit a
maximum of 15 characters to the data terminal. (This applies to both
Single-Stream and AutoStream.)
* Mode 2 Protocol does
not support Receive Flow Control. This option should be set to off while using Mode 2
Protocol (Data Mode B2).
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