2-28
FAX-L260i Chapter 2: Technical Reference
6. COMMUNICATION SYSTEM OPERATIONS
6.1 ISDN Protocol Messages
Main messages which are used in the communication protocols of Layer 2 - Layer 3 of the control channel’s D-
channel and Layer 2 - Layer 6 of the information channel’s B-channel are listed.
6.1.1 D-channel messages
a) Layer 2
Message
SABME
UA
DISC
Description
Set Asynchronous Balanced
Mode Extended
Unnumbered Acknowledge
Disconnect
Remark
The first thing sent when layer 2 is set.
A reply message for SABME, DISC.
Sent when layer 2 is released.
b) Layer 3
Remark
First sent by the calling party after setting layer 2
when making call settings. For the called party, it
does not matter whether or not layer 2 is connected,
SETUP will be done anyway. Then, if layer 2 has not
been connected on the called party, it will be con-
nected, and following that CONN, etc. will be sent.
SETUP confirmation (request for additional informa-
tion)
This means that the calling party SETUP has been
received by ISDN. It is an option message.
On the calling party, receives when the other terminal
has responded. On the called party, sent for accepted
SETUP when able to respond.
On the calling party, sent for received CONN. On the
called party, ISDN sent for the transmitted CONN.
On the calling party, receives when the other terminal
is in a call. On the called party, sent when the user is
in a call. It is an option message.
Sent when layer 3 is disconnected. Receives when
disconnected from ISDN.
Sent when layer 3 is released or when DISC is
received.
Sent when REL is received. ISDN sends with the
transmitted REL.
Message
SETUP
SETUP ACK
CALL PROC
CONN
CONN ACK
ALERT
DISC
REL
REL COMP
Description
Request for call settings
SETUP Acknowledge
Call Proceeding
Connect
Connect Acknowledge
Alerting
Disconnect
Release
Release Complete
Содержание Fax-L260i
Страница 12: ...X This page intentionally left blank ...
Страница 13: ...Chapter 1 General Description ...
Страница 14: ......
Страница 25: ...1 11 FAX L260i Chapter 1 General Description This page intentionally left blank ...
Страница 33: ...1 19 FAX L260i Chapter 1 General Description This page intentionally left blank ...
Страница 56: ...1 42 FAX L260i Chapter 1 General Description This page intentionally left blank ...
Страница 57: ...Chapter 2 Technical Reference ...
Страница 58: ......
Страница 61: ...2 3 FAX L260i Chapter 2 Technical Reference This page intentionally left blank ...
Страница 65: ...2 7 FAX L260i Chapter 2 Technical Reference This page intentionally left blank ...
Страница 69: ...2 11 FAX L260i Chapter 2 Technical Reference This page intentionally left blank ...
Страница 81: ...2 23 FAX L260i Chapter 2 Technical Reference This page intentionally left blank ...
Страница 93: ...2 35 FAX L260i Chapter 2 Technical Reference 7 NEW FUNCTION There is no new function in this model ...
Страница 94: ...2 36 FAX L260i Chapter 2 Technical Reference This page intentionally left blank ...
Страница 95: ...Chapter 3 Maintenance Service ...
Страница 96: ......
Страница 149: ...3 53 FAX L260i Chapter 3 Maintenance Service 5 SERVICE SWITCHES 5 1 Hardware Switches None ...
Страница 159: ...3 63 FAX L260i Chapter 3 Maintenance Service This page intentionally left blank ...
Страница 169: ...3 73 FAX L260i Chapter 3 Maintenance Service This page intentionally left blank ...
Страница 174: ...3 78 FAX L260i Chapter 3 Maintenance Service This page intentionally left blank ...
Страница 198: ...3 102 FAX L260i Chapter 3 Maintenance Service a 3 System dump list Figure 3 26 System Dump List 1 2 ...
Страница 201: ...3 105 FAX L260i Chapter 3 Maintenance Service This page intentionally left blank ...
Страница 214: ...3 118 FAX L260i Chapter 3 Maintenance Service This page intentionally left blank ...
Страница 215: ...Chapter 4 Appendix ...
Страница 216: ......
Страница 227: ...0299AB0 30 0 0699AB0 30 0 ...
Страница 228: ...PRINTED IN JAPAN IMPRIME AU JAPON 0699AB0 30 0 CANON INC Printied on paper that contains 60 reused paper ...
Страница 234: ......
Страница 238: ......
Страница 260: ......
Страница 268: ......
Страница 269: ...0299 SE 0 50 0 0699 SE 0 30 0 ...
Страница 270: ...Printed on paper that contains 60 reused paper PRINTED IN JAPAN IMPRIME AU JAPON 0699SE0 30 0 CANON INC ...