Ricoh A230, Service Manual, Page: 742 / 1134

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BIT SWITCHES
4-17
SM A230/A231/A232
System Switch 00
No FUNCTION COMMENTS
Technical data (standard)
printout on TCR/Journal
0: Disabled
1: Enabled 1: Instead of the personal name, the following
data are listed on the TCR for each G3
communication.
e.g. 32 V34 288 M 01 00 03 04
First number: Symbol rate (V.34 only)
Second number: Final modem type used
Third number: Final data rate (for example, 288 means 28.8 kbps)
Fourth: M means modem EQM / L means Rx level
Fifth and sixth numbers: Line quality data. Either a measure of the error rate or
the rx level is printed, depending on the bit 3 setting below. (An M on the report
indicates that it is error rate, and an L indicates Rx level.) The left hand figure is
the low byte and the right hand figure is the high byte (refer to the following note
for how to read the rx level). If it is a measure of the error rate; a larger number
means more errors.
Seventh number (rx mode only): Total number of error lines that occurred during
non-ECM reception.
Eighth number (rx mode only): Total number of burst error lines that occurred
during non-ECM reception.
The fifth and sixth numbers are fixed at 00 for transmission records and ECM
reception records.
2
Rx level calculation
Example: 32 V34 288 L 01 00 03 04
The four-digit hexadecimal value (N) after “L” indicates the rx level.
The high byte is given first, followed by the low byte. Divide the decimal value of N
by -16 to get the rx level.
In the above example, the decimal value of N (= 0100 [H]) is 256.
So, the actual rx level is 256/-16 = -16 dB
3 Line quality data output
method
0: Measure of error rate
(during image data
transmission only)
1: Rx level This bit determines the data type to be printed on
the TCR (Journal) when technical data printout is
enabled by bit 2 above.
4
Not used Do not change the settings.
5 G3/G4 Communication
parameter display
0: Disabled
1: Enabled This is a fault-finding aid. The LCD shows the key
parameters (see the next 2 pages). This is
normally disabled because it cancels the CSI
display for the user.
Be sure to reset this bit to 0 after testing.
6
Protocol dump list output after
each communication
0: Off
1: On This is only used for communication
troubleshooting. It shows the content of the
transmitted facsimile protocol signals. Always
reset this bit to 0 after finishing testing.