Canon Super G3 Fax Board-AF1 Service Manual Download Page 52

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Chapter 5

5-10

5.3 Setting of Menu Switch (MENU)

5.3.1 <005: NL Equalizer>

0025-3129

Use it to enable-disable the NL equalizer.
If errors occur often during communication because of the condition of the line, enable (ON) the NL equalizer.

5.3.2 <006: Telephone Line Monitor>

0025-3130

Use it to the telephone line monitor function:

5.3.3 <007: ATT Transmission Level>

0025-3131

Use it to set the transmission level (ATT).
Raise the transmission level if errors occur frequently at time of communication because of the condition of the line. (It means close to 8)

5.3.4 <008: V.34 Modulation Speed Upper Limit>

0025-3132

Use it to set an upper limit to the modulation speed (baud rate) for the V.34 primary channel.
When '4 (2743 baud)' is selected, the actual communication is executed with 2400 baud.

5.3.5 <009: V.34 Data Speed Upper Limit>

0025-3133

Use to set an upper limit to the data transmission speed for the V.34 primary channel between 2.4K and 33.6K bps in increments of 2400 bps. (0: 2.4K to 13: 33.6K
bps).

5.4 Setting of Numeric Parameter (NUMERIC Param.)

5.4.1 <002: RTN transmission condition (1)><003: RTN transmission condition (2)><004: RTN transmission condition (3)>

0025-3136

Use it to set RTN signal transmission conditions. Raise these parameters for more lenient conditions if errors occur frequently at time of reception because of trans-
mission of the RTN signal.

5.4.2 <005: NCC pause length (pre-ID code)>

0025-3137

Use it to set the length of the pause automatically entered between access code and ID code when the NCC (New Common Carrier) line is used for dialing.

5.4.3 <006: NCC pause length (post-ID code)>

0025-3138

Use it to set the length of the pause automatically entered between ID code and telephone number of the other party when the NCC (New Common Carrier) line is
used for dialing.

5.4.4 <007: pre-pause length at time of ring>

0025-3139

Use it to set the length of the pause used when placing a call.

5.4.5 <009: number of comparison digits of source telephone number and target telephone number>

0025-3140

Use it to set the number of TSI comparison characters (lower $ characters) for a check on telephone numbers.

MEMO:

Any of the following error codes may be indicated at time of transmission because of the line condition
##100, ##101, ##102, ##104, ##201, ##281, ##282, ##283, ##750, ##755, ##765, ##774, ##779, ##784, ##789

Any of the following error codes may be indicated at time of transmission because of the line condition
##103, ##107, ##114, ##201, ##790, ##793

0(DIAL):

generate the monitor sound of the telephone line using the speaker from the start of transmission to DIS.

generate the monitor sound of the telephone line using the speaker from the start of communication to the end of it.

not used

3(OFF):

do not generate the monitor sound of the telephone line usng the speaker.

MEMO:

Any of the following error codes may be indicated at time of transmission because of the line condition
##100, ##101, ##102, ##104, ##201, ##280, ##281, ##282, ##283, ##284, ##750, ##752, ##754, ##755, ##757, ##759, ##760, ##762, ##764, ##765, ##767, ##769,
##770, ##772, ##774, ##775, ##777, ##779, ##780, ##782, ##784, ##785, ##787, ##789

Any of the following error codes may be indicated at time of reception because of the line condition
##103, ##106, ##107, ##201, ##793

MEMO:

Any of the following error codes may be indicated at time of reception because of RTN signal transmission
##104, ##107, ##114, ##201

RTN signal transmission condition (1) affects the ratio of error lines to the total number of lines per single page of received images.
RTN signal transmission condition (2) affects the standard value (*2) of burst errors (*1).
RTN signal condition (3) affects the number of errors not reaching the standard value of burst errors.
*1: transmission error occurring cover several lines.
*2: for instance, if '15' is set, a single burst error will represent an error occurring continuously cover 15 lines.

If any of these lines is detected while an image signal is being received, the RTN signal will be transmitted after receiving the protocol signal of the transmitting party.
Higher parameters restrict the transmission of the RTN signal.