Gestetner G060, Руководство по обслуживанию

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BIT SWITCHES
G307 3-44 SM
G3 Switch 08 - Not used (do not change the settings)
G3 Switch 09 SP No. 1-105-010
No FUNCTION COMMENTS
0
to
1
ISDN cable equalizer
(tx mode: Internal)
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.
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
to
3
ISDN cable equalizer
(rx mode: Internal)
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.
Note: This setting is not effective in V.34
communications.
4 ISDN cable equalizer
(V.8/V.17 rx mode: External)
0: Disabled
1: Enabled Keep this bit at “0” in most cases.
5 ISDN cable equalizer
(V.34 rx mode: External)
0: Disabled
1: Enabled Keep this bit at “0” in most cases.
6-7 Not used Do not change the settings.
G3 Switch 0A SP No. 1-105-011
No FUNCTION COMMENTS
0
1 Maximum allowable carrier
drop during image data
reception
Bit 1 Bit 0
Value (ms)
0 0 200
0 1 400
1 0 800
1 1 Not used
These bits set the acceptable modem carrier drop
time.
Try using a longer setting if error code 0-22 is
frequent.