User`s manual

B.4.6 Synchronization
OOCM P achieves synchronization through the use
of two ASCII SYN characters preceding the SOH,
ENQ, or OLE. It is not necessary to synchronize
between messages as long as no gap exists.
Gaps are
filled with
SYN characters. Two sync characters are
required,
but more are usually transmitted. If syn-
chronization between messages
is deliberately lost by
B-8
sending PA 0 (all I s) characters, the intermessage
interval
must be at least 14 character times in length.
B.4.7 Bootstrapping
OOCM P has a bootstrap message as part of the pro-
tocol.
It begins with the ASCII control character
OLE. The information field contains the system
reload
programs and is totally transparent.