Brother International DCP 8040 Service Manual - Page 333

APPENDIX 3 FIRMWARE SWITCHS (WSW) WSW38 (Function setting 16) Selector No. 1 2 3 4 5 6 7 8 Function Setting of the equalizer Sending level of guard tone at phase 2 Stepping down the transmission speed at fallback each Automatic control of modem's EQM gain for proper transmission speed choice Redialing when a communications error occurs CED detection for CNG stoppage Setting and Specifications No. 1 2 0 X Automatic 1 0 : Fixed to 4 points 1 1 : Fixed to 16 points 0: Normal - 7 db 1: Normal 0: 2400 bps 1: 4800 bps No. 5 6 0 0 For higher transmission speed than the current setting 0 1 : No change from the current setting 1 0 : For lower transmission speed than the current setting 1 1 : For further lower transmission than the setting made by 1, 0 0: ON 1: OFF 0: ON 1: OFF NOTE: WSW38 takes effect only in the V. 34 mode. l Selectors 1 and 2: Setting of the equalizer These selectors set the equalizer's training level to be applied if the machine fails to send training due to weak line connection. If these selectors are set to "0, X," the modem will automatically set the appropriate training level. l Selector 3: Sending level of guard tone at phase 2 This selector sets the sending level of guard tone for 1800 Hz to be sent at Phase 2 in the V. 34 mode. l Selector 4: Stepping down the transmission speed at fallback each This selector determines how much the modem steps down the transmission speed at fallback when called by the remote station. If this selector is set to "1," the modem may step down the transmission speed from 33600 bps to 28800 bps by one-time fallback. l Selectors 5 and 6: Automatic control of modem's EQM gain for proper transmission speed choice These selectors determine how the modem controls the EQM (Eye Quality Monitor) gain for proper choice of the transmission speed, which applies if the modem selects higher transmission speed than the possible speed so that it always repeats falling back. A-40