Panasonic KX-FT71LA-B, Service Manual

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Signal Identification Signal Format Function
Training 1 ——————— A fixed pattern is transmitted to the receiving
at a speed (2400 to 9600 bps) designated by DCS,
and the receiving side optimizes the automatic
equalizer, etc., according to this signal.
TCF
(Training Check)
——————— Sends 0 continuously for 1.5 seconds at the same
speed as the training signal.
CFR
(Confirmation to
Receive)
X0100001 Notifies the sending side that TCF has been
properly received. If TCF is not properly received,
FTT (Failure To Train) X0100010 is relayed to
sender. The sender then reduces the
transmission speed by one stage and initiates
training once again.
Training 2 ——————— Used for reconfirming the receiving side like
training 1.
Image Signal Refer to the next page. ———————
RTC
(Return to Control)
——————— Sends 12 bits (0...01 × 6 times) to the receiver
the same speed as the image signal and notifies
completion of transmission of the first sheet.
EOP
(End of Procedure)
X1110100 End of one communication
MCF
(Message
Confirmation)
X0110001 End of 1 page reception
DCN
(Disconnect)
X1011111 Phase E starts.
MPS
(Multi-Page Signal)
X1110010 Completion of transmission of 1 page. If there
still more documents to be sent, they are output
instead of EOP. After MCF reception, the sender
transmits an image signal of the second sheet.
PRI-EOP
(Procedural Interrupt-
EOP)
X1111100 If there is an operator call from the sender, it
output after RTC.
Signal Identification Signal Format Function
PIP
(Procedural Interrupt
Positive)
X0110101 This is output when an operator call is received.
b. Redundancy Compression Process Coding Mode / This unit uses one-dimensional MH
format.
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