User manual

Computer Gateway User Manual 3-9 5/96
3.2.7
3.2.7 Dispatcher
The Dispatcher activates ACPs when requested by the Communications Handler or by the
ACP Installer.
3.2.8 Communications Handler
The Communications Handler is responsible for "blocking" and "unblocking" messages
between the CG and the host processor. Additionally, it is responsible for message routing
over the two links (if a second link is present).
The Communications Handler receives messages from host processor programs, breaking
them into smaller size transmission blocks as necessary, adds identification, and sends the
packets to the CG through the Protocol Handler/Driver.
The Communications Handler receives the message packets from the CG, assembles the
blocks to reform the message, and routes the message to the program (Task Group ID)
specified in the message.