Manual Call Setup Sequence - Furuno IB-681 Operator's Manual

3.4.3 Manual call setup sequence

CES
SES RQ
Ch. assignment req. SU
NCSI
HSUB
Scr. vec. ack SU
HSUB
Call to
subscriber
Fill in SU
Reply from
subscriber
CES connect
HSUB
NCS
CESI
Channal assignment SU
Figure 7 Manual call setup sequence
14
FELCOM
Access req. SU
NCSA
Service addr. SU
scr. vec. advise SU
HSUB
HSUB
HSUB
SES connect SU
Calling operation
(dialing)
RI ON
Ret. carrier ID SU
OFF HOOK
(DTR ON)
RI OFF
DSR ON
CTS/DCD ON