Decision Data 3000 Series, Руководство пользователя

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Session Access
8.2X.25 Line Communication
This section describes the three methods used for establishing X.25 communication from
the 3494: PVC, SVC Call, and SVC answer. For each method, there are essential
parameters and optional ones which, if allowed by the Setup, can be used to override the
Setup information.
To establish X.25 line type host communications:
1. Use the SYS REQ command to issue the initiation type.
2. [Hx] will be displayed at the top of the screen. [Hx] represents the last AS/400 host
System that you established communications with.
3. If necessary, change the AS/400 system identifier [Hx], to specify the system you want
to establish communication with; [H1, H2, H3, H4]
NOTE: Insert a comma between successive parameters on the system request line. After
the last promoters on the System Request line is entered, press ENTER
8.2.1PCV
For Single PVC operation with NO manual options:
No operator action is required to initiate communication following power-on, or to re-
establish communication following successful network link error recovery.
For Single PVC operation WITH manual options:
Initiate communication with the SYS REQ command, and continue with the following
procedure. The operator options entered for link initialization, are saved and used to re-
establish communication following network link error recover without further operator action.
NOTE: After the last parameter is entered on the system request line, press ENTER.
Initiate PVC with a SYS REQ command.
Only the FIRST parameter listed below is essential. The other parameters are optional.
1. Enter [O] in the first space of the system request line (required parameter).
* Insert a comma between successive parameters
2. To select the logical channel:
If your network subscription provides more than one logical channel, type [L] followed by
a three character hexadecimal code to identify the logical channel to be used.
Values = Hexadecimal values [001 to FFF].
3. If Control Negotiation is enabled, the following options are available: .
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