4.
COMMUNICATION CONTROL
• Communication control of this system follows ITU-T (previously known as CCITT) recom-
mended T.30 binary procedure (G3/ECM; error collection mode).
• Communication mode will be selected automatically with the type of phone line (PSTN)
and the ID signal from a remote terminal.
4-1.
V3.4 Mode Communication Procedure
Pre-control
Post-control
M-12
4015M510AA
4015M511AA