Modem Fallback Sequence - Konica Minolta FK-502 Service Manual

FK-502/Network Fax Service Manual Ver.3.0
Important
1.
Considered to be A4 width when the DIS recording paper width is invalid (1, 1)
Becomes a FIF error when the DCS recording paper width is invalid (1, 1).
2.
Considered to be unlimited when the DIS recording paper length is invalid (1, 1).
Considered to be unlimited when the DCS recording paper length is invalid (1, 1).
The DCS recording paper length in a machine is made to be of the same length as that in a remote station
and is sent.
3.
Considered to be 2400bps when the DIS transmission speed is an undefined value.
Becomes a FIF error when the DCS transmission speed is an undefined value.
4. Considered to be 40ms instruction when the MSLT of DCS is an undefined value.
5.
Considered to have mm ability when DIS inch ability and mm ability are both set to OFF.
Considered to be 200*100pels/inch when the DCS resolution receives the inch instruction at 3.851/mm.
Becomes a FIF error when more than one of bit41, 42 and 43 are set to on in the resolution of DCS.
6. Becomes a FIF error when DCS receives the MMR instruction without ECM.
7.
Becomes a FIF error when DCS receives the file transfer (BFT) instruction without ECM.
8.
Becomes a FIF error when DCS shows an instruction which exceeds the ability of the machine.
9.
FIF of DIS/DTC is not sent if last octet is 0.
DCS sends FIF whose length is the same as that of the machine.
10.
When undefined signals are received, they are received and ignored in consideration of the future expan-
sion.(not a error)
7.1.2

Modem Fallback Sequence

Fallback sequences of TCF and CTC are shown as follows:
1.
V17, V29, and V27 ter
Ability of a Remote
V27 ter/V29/V33 V17
On the transmission side ..............................If PPR is received four times, a modem is set in the fall-
On the reception side ...................................In case of sending PPR, when the number of error
2.
V34
Line quality is always water by modem.
Optimum speed is automatically selected on-the-fly.
7.1.3 V8/V34 Sequence
(1) V34
Outline
• The 33.6kbps data transmission method and protocol including the V8 protocol. As for each of full-
duplex and half-duplex, startup handshake until data transmission starts is divided into four phases,
Phase1 to 4, and signals used in each Phase are regulated.
Features
Station
96/V.29 → 72/V.29 → 48/V.27 ter → 24/V27 ter
V27 ter/V29
144/V.17 → 120/V.17 → 96/V.17 → 72/V.17 →
48/V.27 ter → 24/V27 ter
TCF Fallback Sequence
back state.
frames exceeds the FP value, a modem is set in the
fallback state.
PROTOCOL
7-13