Gestetner A265 Service Manual page 661

G3 Switch 07
No FUNCTION
5 PSTN cable equalizer
(V.34 rx mode; External)
6- Not used
7
G3 Switch 08 - Not used (do not change the settings)
G3 Switch 09
No FUNCTION
0 ISDN cable equalizer
to
(tx mode: Internal)
1 Bit 1 Bit 0 Setting
0 0 None
0 1 Low
1 0 Medium
1 1 High
2 ISDN cable equalizer
to (rx mode: Internal)
3 Bit 3 Bit 2 Setting
0 0 None
0 1 Low
1 0 Medium
1 1 High
4 ISDN cable equalizer
(V.8/V.17 rx mode: External)
0: Disabled
1: Enabled
5 ISDN cable equalizer
(V.34 rx mode: External)
0: Disabled
1: Enabled
6-7 Not used
SM
CÓPIA NÃO CONTROLADA
Keep this bit at "1".
Do not change the settings.
Use a higher setting if there is signal loss at
higher frequencies because of the length of wire
between the modem and the telephone
exchange.
Use the dedicated transmission parameters for
specific receivers.
Also, try using the cable equalizer if one or more
of the following symptoms occurs.
•
Communication error
•
Modem rate fallback occurs frequently.
Note: This setting is not effective in V.34
communications.
Use a higher setting if there is signal loss at
higher frequencies because of the length of wire
between the modem and the telephone
exchange.
Also, try using the cable equalizer if one or more
of the following symptoms occurs.
• Communication error with error codes such as
0-20, 0-23, etc.
• Modem rate fallback occurs frequently.
Note: This setting is not effective in V.34
communications.
Keep this bit at "0" in most cases.
Keep this bit at "0" in most cases.
Do not change the settings.
4-57
CÓPIA NÃO CONTROLADA
BIT SWITCHES
COMMENTS
COMMENTS
A265/A267