Gestetner A265 Service Manual page 576

FAX COMMUNICATION FEATURES
Two-step Shift-down from the Sending Terminal
The diagram shows the protocol used by this model acting as the sending terminal.
If this machine has received four PPRs for one ECM block, it will request the
receiving terminal to accept a two-step shift-down in the next control channel.
A265/A267
CÓPIA NÃO CONTROLADA
TX
33.6kbps Fax data
33.6kbps Fax data
33.6kbps Fax data
33.6kbps Fax data
33.6kbps Fax data
Shiftdown MPh
28.8kbps Fax data
2-22
CÓPIA NÃO CONTROLADA
RX
PPR 1
PPR 2
PPR 3
PPR 4
MPh
MCF/
PPR
MCF
A895D533.WMF
SM