Intermec 4985, Programmer'S Manual

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SECTION 6
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Writing the Host Program
6-10 4985 Network Controller Programmer’s Guide
d) 3 Inactive Status
The system sends inactive status records to the host whenever a peri-
od of time expires without any activity on the host port. The status
records indicate the status of the associated port.
e) 4 Active Status
See previous Inactive Status record.
f) 5 Activate Request
Activate request records obtain the information, necessary to activate a
port. Activate requests include the status of the previous activate re-
quest for the port. The system sends these requests for a physical port
whenever the port becomes disconnected. The host may respond with
with one of these activate records: auto-dial, auto-answer, or deactivate-
for-one-minute.
For compatibility, the activate request record processes exactly like an
NI311 phone request record with the following restrictions:
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A 1-byte status field follows the record type in the activate re-
quest. The status field indicates the status of the previous acti-
vate request. This status corresponds to the NI311 end-of-call
status.
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Responding to an activate request with an auto-answer activate
record corresponds to responding to an NI311 phone number
request with a cancel-auto-dial record. However, the controller
will continue to prompt the host with activate requests each time
a port disconnects.
The following record types are not NI311 compatible and do not go to
the host unless the system enables the associated options.
g) 6 Special Request
Currently, one subtype follows:
1 File Requests
h) 7 Directive Status
i) 8 Controller Identification
Host-to-Controller Records
a) 0 Download Data