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40672201TX Rev.4
7 - 2
7.4.1 Transmission Mode
The machine is designed to change the message transmitting speed in accordance with the
following fall-back plan, which is shown in the table 7-1.
Table 7-1
Protocol
7.4.2 Signal Level
The send will be -10.5 dBm for the US/Canada versions, -10dBm for the INT'L version and
will be -11.5 dBM for the GER version, as a PTT requirement. None of the versions will
provide an adjustable attenuator, but the sending level can be programmed by keypad
control.
The receive modem will function with an incoming signal in the range of zero to -40 dBm or -6
to -43 dBm.
7.5 Protocol and Data Transmission
The unit will conform to the following protocol and data transmission procedures:
Group 3 - ITU-T recommendations T.30 and T.4
OKI Special Protocol
High-Speed Protocol - the T.30 handshaking procedure will be conducted at
messagetransmission speed instead of 300 baud, during TX multi-page and multi-document
transmissions.
Note: This feature disable when you set 9.6k to the H/Modem Rate (technical setting
No.13).
Fall-Back Transmission No. of RTN
Rank Speed (bps) Training received
1st ITU-T V.17 (V.33) 14400 1 1
2nd ITU-T V.17 (V.33) 12000 1 1
3rd ITU-T V.17 (V29) 9600 1 1
4th ITU-T V.17 (V.29) 7200 1 1
5th ITU-T V.27 ter. 4800 2 1
6th ITU-T V.27 ter. 2400 2 1