Ricoh aficio 1013F - Page 302

BIT SWITCHES
B465 5-30 SM
G3 Switch 06
No. Function Comments
4–7 Modem types available for
reception
Bit7654 Setting
0001 V.27ter
0010 V.27ter, V.29
0011 Not used
0100 V.27ter, V.29,
V.17
0101 V.27ter, V.29,
V.17,V.34
Other settings - Not used
The setting of these bits is used to inform the
transmitting terminal of the available modem type for
the machine in receive mode.
If V.34 is not selected, V.8 protocol must be
disabled manually.
Cross reference
V.8 protocol on/off - G3 switch 03, bit 2
G3 Switch 07
No. FUNCTION COMMENTS
0, 1 PSTN cable equalizer
(tx mode: Internal)
Bit 1 Bit 0 Setting
00None
0 1 Low
1 0 Medium
11High
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.
2, 3 PSTN cable equalizer
(rx mode: Internal)
Bit 3 Bit 2 Setting
00None
0 1 Low
1 0 Medium
11High
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.
4 PSTN cable equalizer
(V.27ter, V.29, V.33/V.17, V.8
rx mode: External)
0: Disabled 1: Enabled
Keep this bit at “1” in most cases.
5–7 Not used Do not change these settings.