Toshiba GD-1151 Manuale Utente

Pagina di 90
© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
GD-1150/1151/1200/1201/1160/1260
DIALING/COMMUNICATION CONTROL
3 - 3
3
3.2
Signaling System Diagram and Signal Forms
3.2.1
Circuit control signals
The following circuit control signals are used in the binary and tonal procedures.
• Circuit control signals
*1: This signal can be sent manually.
• Signal form
CED
Called station identification
Indicates that the sender is a FAX machine in the automatic called 
mode. (*1)
CNG
Calling tone
Indicates that the sender is a FAX machine in the automatic calling 
mode. (*1)
Signal name
Signal form
Signal form
CED
f: 2100 ±15 Hz
t: 2.6 - 4.0 sec
CNG
f: 1100 ±38 Hz
t: 0.5 sec ±15%
(L: 3 sec)
f
t
f
t
f
t
L