Ricoh B230 Service Manual
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Bit Switches SM 91 B786 B786 Fax Option 0 1 0 1 12.0 Kbps 0 1 1 0 14.4 Kbps 0 1 1 1 16.8 Kbps 1 0 0 0 19.2 Kbps 1 0 0 1 21.6 Kbps 1 0 1 0 24.0 Kbps 1 0 1 1 26.4 Kbps 1 1 0 0 28.8 Kbps 1 1 0 1 31.2 Kbps 1 1 1 0 33.6 Kbps Modem setting for reception Sets the modem type for reception. The default is 0100 (V27ter, V29, V17). Bit 7 Bit 6 Bit 5 Bit 4 0 0 0 1 V27ter 0 0 1 0 V27ter, V29 0 0 1 1 V27ter, V29, V33 (invalid) 0 1 0 0 V27ter, V29, V17 0 1 0 1 V27ter, V29, V17, V34* 4-7 *V34 is not supported for IP-Fax communication. IP Fax Switch 07 [SP No. 1-111-008] No. FUNCTION COMMENTS 0 TSI information 0: Not added, 1: Added Adds or does not add TSI information to NSS(S). 1 DCN transmission setting at T1 timeout 0: Not transmitted, 1: Transmitted Transmits or does not transmit DCN at T1 timeout. 2 Not used Do not change this setting. 3 Hang up setting at DIS reception disabled 0: No hang up Sets whether the machine disconnects after DIS reception.
Bit Switches B786 92 SM 1: Hang up after transmitting DCN 4 Number of times for training 0: 1 time, 1: 2 times Selects the number of times training is done at the same bit rate. 5 Space CSI transmission setting at no CSI registration 0: Not transmitted, 1: Transmitted When 0 is selected, frame data is enabled. When 1 is selected, the transmitted data is all spaces. 6-7 Not used Do not change these settings. IP Fax Switch 08 [SP No. 1-111-009] No. FUNCTION COMMENTS 0-1 T1 timer adjustment Adjusts the T1 timer. The default is 00 (35 seconds). Bit 1: 0, Bit 0: 0 = 35 sec Bit 1: 0, Bit 0: 1 = 40 sec Bit 1: 1, Bit 0: 0 = 50 sec Bit 1: 1, Bit 0: 1 = 60 sec - 2-3 T4 timer adjustment Adjust the T4 timer. The default is 00 (3 seconds). Bit 3: 0, Bit 2: 0 = 3 sec Bit 3: 0, Bit 2: 1 = 3.5 sec Bit 3: 1, Bit 2: 0 = 4 sec Bit 3: 1, Bit 2: 1 = 5 sec - 4-5 T0 timer adjustment Bit 5: 0, Bit 4: 0 = 75 sec Bit 5: 0, Bit 4: 1 = 120 sec Bit 5: 1, Bit 4: 0 = 180 sec Bit 5: 1, Bit 4: 1 = 240 sec Adjusts the fail safe timer. This timer sets the interval between setup data transmission and T.38 phase decision. If your destination return is late on the network or G3 fax return is late, adjust the longer interval timer. The default is 00 (75 seconds). 6-7 Not used Do not change these settings.
NCU Parameters SM 93 B786 B786 Fax Option 4.4 NCU PARAMETERS The following tables give the RAM addresses and the parameter calculation units that the machine uses for ringing signal detection and automatic dialing. The factory settings for each country are also given. Most of these must be changed by RAM read/write (SP2- 102), but some can be changed using NCU Parameter programming (SP2-103, 104 and 105); if SP2-103, 104 and 105 can be used, this will be indicated in the Remarks column. The RAM is programmed in hex code unless (BCD) is included in the Unit column. ƒ The following addresses describe settings for the standard NCU. ƒ Change the fourth digit from “5” to “6” (e.g. 680500 to 680600) for the settings for the first optional G3 interface unit and from “5” to “7” (e.g. 680700) for the settings for the second optional G3 interface unit. Address Function Country/Area code for NCU parameters Use the Hex value to program the country/area code directly into this address, or use the decimal value to program it using SP2-103-001 Country /Area Decimal Hex Country /Area Decimal Hex France 00 00 USA 17 11 Germany 01 01 Asia 18 12 UK 02 02 Hong Kong 20 14 Italy 03 03 South Africa 21 15 Austria 04 04 Australia 22 16 Belgium 05 05 New Zealand 26 17 Denmark 06 06 Singapore 24 18 Finland 07 07 Malaysia 25 19 Ireland 08 08 China 26 1A Norway 09 09 Taiwan 27 1B Sweden 10 0A Korea 28 1C Switzerland 11 0B Turkey 32 20 Portugal 12 0C Greece 33 21 680500 Holland 13 0D Hungary 34 22
NCU Parameters B786 94 SM Address Function Spain 14 0E Czech 35 23 Israel 15 0F Poland 36 24 Address Function Unit Remarks 680501 Line current detection time 680502 Line current wait time 680503 Line current drop detect time 20 ms Line current detection is disabled. Line current is not detected if 680501 contains FF. 680504 PSTN dial tone frequency upper limit (high byte) 680505 PSTN dial tone frequency upper limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680506 PSTN dial tone frequency lower limit (high byte) 680507 PSTN dial tone frequency lower limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680508 PSTN dial tone detection time 680509 PSTN dial tone reset time (LOW) 68050A PSTN dial tone reset time (HIGH) 68050B PSTN dial tone continuous tone time 68050C PSTN dial tone permissible drop time If 680508 contains FF(H), the machine pauses for the pause time (address 68050D / 68050E). Italy: See Note 2. 68050D PSTN wait interval (LOW) 68050E PSTN wait interval (HIGH) 20 ms - 68050F PSTN ring-back tone detection time 20 ms Detection is disabled if this contains FF. 680510 PSTN ring-back tone off detection time 20 ms - 680511 PSTN detection time for silent period after ring-back tone detected (LOW) 20 ms - 680512 PSTN detection time for silent period after ring-back tone detected (HIGH) 20 ms -
NCU Parameters SM 95 B786 B786 Fax Option Address Function Unit Remarks 680513 PSTN busy tone frequency upper limit (high byte) 680514 PSTN busy tone frequency upper limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680515 PSTN busy tone frequency lower limit (high byte) 680516 PSTN busy tone frequency lower limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680517 PABX dial tone frequency upper limit (high byte) 680518 PABX dial tone frequency upper limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680519 PABX dial tone frequency lower limit (high byte) 68051A PABX dial tone frequency lower limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 68051B PABX dial tone detection time 68051C PABX dial tone reset time (LOW) 68051D PABX dial tone reset time (HIGH) 68051E PABX dial tone continuous tone time 68051F PABX dial tone permissible drop time If 68051B contains FF, the machine pauses for the pause time (680520 / 680521). 680520 PABX wait interval (LOW) 680521 PABX wait interval (HIGH) 20 ms - 680522 PABX ringback tone detection time 20 ms 680523 PABX ringback tone off detection time 20 ms If both addresses contain FF(H), tone detection is disabled. 680524 PABX detection time for silent period after ringback tone detected (LOW) 20 ms 680525 PABX detection time for silent period after ringback tone detected (HIGH) 20 ms If both addresses contain FF(H), tone detection is disabled. 680526 PABX busy tone frequency upper limit (high byte) Hz (BCD) If both addresses contain FF(H), tone
NCU Parameters B786 96 SM Address Function Unit Remarks 680527 PABX busy tone frequency upper limit (low byte) detection is disabled. 680528 PABX busy tone frequency lower limit (high byte) 680529 PABX busy tone frequency lower limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 68052A Busy tone ON time: range 1 68052B Busy tone OFF time: range 1 68052C Busy tone ON time: range 2 68052D Busy tone OFF time: range 2 68052E Busy tone ON time: range 3 20 ms 68052F Busy tone OFF time: range 3 680530 Busy tone ON time: range 4 680531 Busy tone OFF time: range 4 680532 Busy tone continuous tone detection time 20 ms - 680533 Busy tone signal state time tolerance for all ranges, and number of cycles required for detection (a setting of 4 cycles means that ON-OFF-ON or OFF- ON-OFF must be detected twice). Tolerance (±) Bit 1: 0, Bit 0: 0 = 75% Bits 2 and 3 must always be kept at 0. Bit 1: 0, Bit 0: 0 = 50% Bits 2 and 3 must always be kept at 0. Bit 1: 0, Bit 0: 0 = 25% Bit 1: 0, Bit 0: 0 = 12.5% Bits 7, 6, 5, 4 - number of cycles required for cadence detection 680534 International dial tone frequency upper limit (high byte) 680535 International dial tone frequency upper limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680536 International dial tone frequency lower limit (high byte) 680537 International dial tone frequency lower limit (low byte) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680538 International dial tone detection time 680539 International dial tone reset time (LOW) 20 ms If 680538 contains FF, the machine pauses for the pause time (68053D / 68053E).
NCU Parameters SM 97 B786 B786 Fax Option Address Function Unit Remarks 68053A International dial tone reset time (HIGH) 68053B International dial tone continuous tone time 68053C International dial tone permissible drop time Belgium: See Note 2. 68053D International dial wait interval (LOW) 68053E International dial wait interval (HIGH) - 68053F Country dial tone upper frequency limit (HIGH) 680540 Country dial tone upper frequency limit (LOW) If both addresses contain FF(H), tone detection is disabled. 680541 Country dial tone lower frequency limit (HIGH) 680542 Country dial tone lower frequency limit (LOW) Hz (BCD) If both addresses contain FF(H), tone detection is disabled. 680543 Country dial tone detection time 680544 Country dial tone reset time (LOW) 680545 Country dial tone reset time (HIGH)20 ms If 680543 contains FF, the machine pauses for the pause time (680548 / 680549). 680546 Country dial tone continuous tone time - - 680547 Country dial tone permissible drop time 680548 Country dial wait interval (LOW) 680549 Country dial wait interval (HIGH) 20 ms - 68054A Time between opening or closing the DO relay and opening the OHDI relay 1 ms See Notes 3, 6 and 8. SP2-103-012 (parameter 11). 68054B Break time for pulse dialing 1 ms See Note 3. SP2-103-013 (parameter 12). 68054C Make time for pulse dialing 1 ms See Note 3. SP2-103-014 (parameter 13).
NCU Parameters B786 98 SM Address Function Unit Remarks 68054D Time between final OHDI relay closure and DO relay opening or closing 1 ms See Notes 3, 6 and 8. SP2-103-015 (parameter 14). This parameter is only valid in Europe. 68054E Minimum pause between dialed digits (pulse dial mode) See Note 3 and 8. SP2- 103-016 (parameter 15). 68054F Time waited when a pause is entered at the operation panel 20 ms SP2-103-017 (parameter 16). See Note 3. 680550 DTMF tone on time SP2-103-018 (parameter 17). 680551 DTMF tone off time 1 ms SP2-103-019 (parameter 18). 680552 Tone attenuation level of DTMF signals while dialing -N x 0.5 – 3.5 dBm SP2-103-020 (parameter 19). See Note 5. 680553 Tone attenuation value difference between high frequency tone and low frequency tone in DTMF signals -dBm x 0.5 SP2-103-021 (parameter 20). The setting must be less than –5dBm, and should not exceed the setting at 680552h above. See Note 5. 680554 PSTN: DTMF tone attenuation level after dialling -N x 0.5 – 3.5 dBm SP2-103-022 (parameter 21). See Note 5. 680555 ISDN: DTMF tone attenuation level after dialling -dBm x 0.5 See Note 5 680556 Not used - Do not change the settings. 680557 Time between 68054Dh (NCU parameter 14) and 68054Eh (NCU parameter 15) 1 ms This parameter takes effect when the country code is set to France. 680558 Not used - Do not change the setting. 680559 Grounding time (ground start mode) 20 ms The Gs relay is closed for this interval. 68055A Break time (flash start mode) 1 ms The OHDI relay is open for this interval.
NCU Parameters SM 99 B786 B786 Fax Option Address Function Unit Remarks 68055B International dial access code (High) 68055C International dial access code (Low) BCD For a code of 100: 68055B - F1 68055C - 00 68055D PSTN access pause time 20 ms This time is waited for each pause input after the PSTN access code. If this address contains FF[H], the pause time stored in address 68054F is used. Do not set a number more than 7 in the UK. 68055E Progress tone detection level, and cadence detection enable flags Bit 7: 0, Bit 6: 0, Bit 5: 0 = -25.0 dBm Bit 7: 0, Bit 6: 0, Bit 5: 1 = -35.0 dBm Bit 7: 0, Bit 6: 1, Bit 5: 0 = -30.0 dBm Bit 7: 1, Bit 6: 0, Bit 5: 0 = -40.0 dBm Bit 7: 1, Bit 6: 1, Bit 5: 0 = -49.0 dBm Bits 2, 0 - See Note 2. 68055F To 680564 Not used - Do not change the settings. 680565 Long distance call prefix (HIGH) BCD 680566 Long distance call prefix (LOW) BCD For a code of 0: 680565 – FF 680566 - FF 680567 to 680571 Not used - Do not change the settings. 680572 Acceptable ringing signal frequency: range 1, upper limit SP2-103-003 (parameter 02). 680573 Acceptable ringing signal frequency: range 1, lower limit SP2-103-004 (parameter 03). 680574 Acceptable ringing signal frequency: range 2, upper limit SP2-103-005 (parameter 04). 680575 Acceptable ringing signal frequency: range 2, lower limit 1000/ N (Hz). SP2-103-006 (parameter 05). 680576 Number of rings until a call is detected 1 SP2-103-007 (parameter 06). The setting must not be zero. 680577 Minimum required length of the first ring 20 ms See Note 4. SP2-103-008
NCU Parameters B786 100 SM Address Function Unit Remarks (parameter 07). 680578 Minimum required length of the second and subsequent rings 20 ms SP2-103-009 (parameter 08). 680579 Ringing signal detection reset time (LOW) SP2-103-010 (parameter 09). 68057A Ringing signal detection reset time (HIGH) 20 ms SP2-103-011 (parameter 10). 68057B to 680580 Not used - Do not change the settings. 680581 Interval between dialing the last digit and switching the Oh relay over to the external telephone when dialing from the operation panel in handset mode. 20 ms Factory setting: 500 ms 680582 Bits 0 and 1 - Handset off-hook detection time Bit 1:0, Bit 0: 0 = 200 ms Bit 1:0, Bit 0: 1 = 800 ms Other Not used Bits 2 and 3 - Handset on-hook detection time Bit 3: 0, Bit 2: 0 = 200 ms Bit 3: 0, Bit 2: 1 = 800 ms Other Not used Bits 4 to 7 - Not used - 680583 To 6805A0 Not used - Do not change the settings. 6805A1 Acceptable CED detection frequency upper limit (high byte) 6805A2 Acceptable CED detection frequency upper limit (low byte) BCD (Hz) If both addresses contain FF(H), tone detection is disabled. 6805A3 Acceptable CED detection frequency lower limit (high byte) 6805A4 Acceptable CED detection frequency lower limit (low byte) BCD (Hz) If both addresses contain FF(H), tone detection is disabled. 6805A5 CED detection time 20 ms ± 20 ms Factory setting: 200 ms 6805A6 Acceptable CNG detection frequency upper limit (high byte) 6805A7 Acceptable CNG detection BCD (Hz) If both addresses contain FF(H), tone detection is disabled.