Ricoh fax180 - Page 62

G3 Switch 07
FUNCTION COMMENTS
0
1
PSTN cable equalizer
(tx mode)
Bit 1 Bit 0 Setting
0 0 None
0 1 Low
1 0 Medium
1 1 High
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
• Modem rate fallback occurs frequently.
2
3
PSTN cable equalizer
(rx mode)
Bit 3 Bit 2 Setting
0 0 None
0 1 Low
1 0 Medium
1 1 High
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.
4
to
7
Not used Do not change the settings.
G3 Switch 08
FUNCTION COMMENTS
0
1
PABX cable equalizer
(tx mode)
Bit 1 Bit 0 Setting
0 0 None
0 1 Low
1 0 Medium
1 1 High
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
• Modem rate fallback occurs frequently.
2
3
PABX cable equalizer
(rx mode)
Bit 3 Bit 2 Setting
0 0 None
0 1 Low
1 0 Medium
1 1 High
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.
4
to
7
Not used Do not change the settings.
August 7th, 1995 SERVICE TABLES AND PROCEDURES
BIT SWITCHES
4-31