Toshiba GD-1221 Manuale Utente

GD-1220/1221

SPECIFICATIONS AND OUTLINE OF SYSTEM

1 - 3

3) Transmission system

Circuits to be used: Subscriber line/FAX communication network (G3)
- Calling automatic transmission (including the sequential multi-address transmission)
- Calling automatic reception (polling reception)
- Called automatic transmission (polling transmission)
- Called automatic reception
- Calling manual transmission
- Calling manual reception
- Called manual transmission
- Called manual reception

Communication mode
High-speed mode (Toshiba original procedure mode)
G3 mode
ECM (Error Correction Mode)

Circuit carrier link equalization function
Embedded

Output level
–16 dBm to –8 dBm (The setting can be changed by “1 dB”.)

Input level
–43 dBm to 0 dBm
(Level –55 dBm or lower cannot be detected)

Specifications of the communication mode

High-speed mode

(Toshiba original procedure mode)

G3 mode

ECM

Horizontal scanning den-

sity

8 dots/mm

16 dots/mm

Same as on the left

Vertical scanning density

3.85 lines/mm

7.7 lines/mm

15.4 lines/mm

Same as on the left

Encoding system

MH/MR/MMR/JBIG

MH/MR

MH/MR/MMR/JBIG

Transmission speed

(image signal) and modu-

lation method

14.4 k/12 k/9600

7200/4800/2400 bps

Conformance to V.17/V.29/V.27 ter

Same as on the left

33.6 k/31.2 k/28.8 k/

26.4 k/24 k/21.6 k/

19.2 k/16.8 k/14.4 k/

12 k/9600/7200/

4800/2400 bps

Control signal

300 bps

(V.21)

Same as on the left

1200 bps (V.34)

300 bps (V.21)

Procedure to control the

transmission

Toshiba original procedure

T.30 conformance

Same as on the left