Toshiba ESTUDIO170F, Service Manual

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January 2005 © TOSHIBA TEC e-STUDIO170F Function Settings
4 - 49
• FUNC 5
Remark:
FUNC 5 Bit 7 and 6:
These bits program the equalizer value which has frequency characteristics. For long-distance
communication, a larger equalizer value is recommended as a rule.
FUNC 5 Bit 5:
This bit selects whether or not the echo protect tone is added before the training for V.29 (9600
bps) communication. By adding the echo protect tone, the echo cancel circuit of the satellite line
is started up to improve the line status.
FUNC 5 Bit 4:
This bit selects whether or not a delay (500 ms) is inserted before sending the signal at reversing
transmission/reception change and the timing is shifted to avoid line echo.
When the echo preventing circuit or echo cancel circuit causes missing of the beginning of the
signal, for example, in overseas communications where a delay may be larger, this bit should be
set to 1 (ON).
FUNC 5 Bit 3:
This bit selects whether or not a delay (500 ms) is inserted before the high-speed signal is sent to
shift the timing. Explanation for bit 4 is applicable.
FUNC 5 Bit 1:
This bit selects whether or not the CNG signal is output in manual transmission (on hook dialing/
off-hook dialing). When the receiving terminal uses a switching device, CNG signal output is
required (1=ON).
FUNC 5 Bit 0:
This bit selects whether or not the CED signal is transmitted in manual reception.
Bit Contents
Link with User
Function Setting
7
6
Cable Equalizer Value:
00: 0 dB
01: -4 dB
10: -8 dB
11: -12 dB
-
5 Echo Protect Tone to V29:
0: Not added
1: Added
-
4 Sending of 300 bps (FSK) Signal:
0: No delay
1: 500 ms delay
-
3 Sending of High-speed Signal:
0: No delay
1: 500 ms delay
-
2 Undefined -
1 Sending of CNG Signal at Manual Transmission:
0: Do not send
1: Send
-
0 Sending of CED Signal at Manual Reception:
0: Do not send
1: Send
-