Transceiver - Toshiba DP120F Service Manual

3. Transceiver

Line used:
Communication mode:
Communication mode specifications:
Horizontal scanning
density
Ver tical scanning
density
Data compression
system
Transmission speed
(image signal)
Modulation system
(V.17/V.29/V.27ter/
V.21)
Transmission speed
(image signal)
Modulation system
(V.34)
Control signals FSK
(V.21)
Transmission control
sequence
Transmission time:
Reception level:
Transmission level:
DP120F/DP125F Specifications
Telephone line
Exclusive mode (CRP connection)
G3 mode
ECM
Exclusive mode
(CRP call-out)
8 dots/mm,16 dots/mm
3.85 lines/mm
7.7 lines/mm
15.4 lines/mm
MH/MR/MMR/JBIG
14.4K/12.0K/9.6K
7.2K/4.8K/2.4K
—————
300 bps
FSK
Exclusive sequence
About 2.4 seconds (in the case of the transmission of a
TEC original test chart using the V.34 modem at 33.6
Kbps), about 5.6 seconds (in the case of the transmis-
sion of a TEC test chart using the V.17 at 14.4 Kbps).
V.17: -43 dBm to -3 dBm
V.34: -43 dBm to -9 dBm
-15 dBm to 0 dBm
(1dB incremental settings are available)
G3 mode
8 dots/mm, 16 dots/mm
3.85 lines/mm
7.7 lines/mm
15.4 lines/mm
MH/MR
14.4K/12.0K/9.6K/ 7.2K/
4.8K/2.4K
—————
300 bps
FSK
Conforming to T4, T30
2-4
ECM
8 dots/mm,16 dots/mm
3.85 lines/mm
7.7 lines/mm
15.4 lines/mm
MH/MR/MMR/JBIG
14.4K/12.0K/9.6K/7.2K/
4.8K/2.4K
33.6K/31.2K/28.8K/26.4K/
24.0K/21.6K/19.2K/16.8K/
14.4K/12.0K/9.6K/7.2K/
4.8K/2.4K
1200 bps or 2400 bps
Conforming to T4, T6, T30,
T82, T85
March 2000 © TOSHIBA TEC