Signal Format And Communication Procedure; Network Control Signal Format - Toshiba DP120F Service Manual

2. Signal Format and Communication Procedure

2.1 Network Control Signal Format

The following signals are used as part of both the binary procedure and tonal procedure.
2.1.1 Network Control Signals
CED
CNG
*1: This machine can generate the signal by manual operation as well.
2.1.2 Signal Format
Signal name
CED
CNG
March 2000 © TOSHIBA TEC
Called Electronic Device
Indicates that the facsimile is in the automatic called mode. (*1)
Calling Tone
Indicates that the facsimile is in the automatic calling mode. (*1)
Signal format
f
L
H
f
t
f
H
9-3 DP120F/DP125F Dialing and Communication Procedure
Specifications
f: 2100 + 15 Hz
t: 2.6 to 4.0 sec.
f: 1100 + 38 Hz
(H: 0.5 sec., L: 3 sec.)