Ricoh HL-F1, Field Service Manual

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If this selector is set to "0," the called station starts counting zeros 100 ms after the head of a series
of zeros is detected.
If it is set to "1," the called station starts counting zeros upon detection of 10-ms successive zeros 50
ms after the head of a series of zeros is detected. In this case, if the detection of 10-ms successive
zeros is too late, the data counting period will become less than 1.0 second, making the called station
judge the line condition unacceptable.
• Selectors 2 and 3: Allowable training error rate
The called station checks a series of zeros gathered in training (as described in Selector 1) according
to the allowable training error rate set by these selectors. If the called station judges the line condition
to be accepted, it responds with CFR; if not, it responds with FTT.
• Selectors 4 and 5: Decoding error rate for transmission of RTN
The machine checks the actual decoding errors and then transmits an RTN according to the decoding
error rate (Number of lines containing an error per page ÷ Total number of lines per page) set by
these selectors.
• Selector 8: Limitation of attenuation level
Setting this selector to "0" limits the transmitting level of the modem to 10 dB (1 dB in France).
This setting has priority over the settings selected by WSW02 (selectors 5 through 8) and WSW13
(selectors 5 through 8).
WSW24 (TAD setting 2)
Selector No. Function Setting and Specifications
1
2
Not used. -
3
4
Time length from CML ON to start of
pseudo ring backtone transmission
No. 3 4
0 0 : 4 sec.
0 1 : 3 sec.
1 0 : 2 sec.
1 1 : 1 sec.
5 to 8 Not used. -
• Selectors 3 and 4: Time length from CML ON to start of pseudo ring backtone transmission
These selectors set the length of time from CML-ON up to the start of pseudo ring backtone
transmission.
5. Service Maintenance
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