Fax Operation 55
Class 1 commands control on-line modem negotiation while Class 2
commands allow the modem to do many negotiations
simultaneously. The Class 1 protocol uses the modem to transmit
fax data only. The complete organizational overhead for this
protocol is handled by the connected computer. The Class 1
command set is also called the TIA-578 standard.
Several revisions of the class 2 standard exist. Implementations
conforming to different revisions may not work together. A
formally approved version is the Class 2.0 command set, also called
the TIA-592 standard.
Class 1 Command Set
Command
Value Description
+FCLASS=n
Service class selection.
n=0
Set to Data mode.
n=1
Set to Class 1 mode.
n=2
Set to Class 2 mode.
n=2.0
Set to Class 2.0 mode.
n=6
Set to ZFAX mode.
n=8
Set to Voice mode.
O
O
N
OTE
:
I
F
S57.4=0 (
DEFAULT
),
THE RESPONSE TO THE
+FCLASS=?
COMMAND WILL
NOT REPORT
C
LASS
1
CAPABILITY
. T
HIS IS DUE TO THE FACT THAT SOME FAX
SOFTWARE PACKAGES MAY GET CONFUSED BY THIS RESPONSE
.
Command
Value
Description
+FTS=n
0-255
Stop transmission and pause, in 10 ms
Содержание U-336R
Страница 1: ...U 336R RE User s Guide Version 1 0 Mar 1997 ZyXEL ACCESSING INTERNET INTRANET...
Страница 18: ...6 Introduction...
Страница 25: ...Installation 13 10 for troubleshooting suggestions...
Страница 26: ...14 Installation...
Страница 46: ...34 Synchronous Mode Operation...
Страница 64: ...52 Special Functions...
Страница 127: ...Status Registers Result Codes 115...
Страница 148: ...136 Terminal Pinouts...