Lexmark X125 Service Manual page 47

4412-00X
12000 bps, the RX speed is either V.17 or V.33. When the TX speed
is set to 9600 or 7200 bps, the RX speed is V.29 or V.27. When the
TX speed is set to 4800 or 2400 bps, the RX speed is V.27.
1. Press Setup.
2. Press Menu until 'Modem Speed' displays.
3. Press Options to select the TX speed you want. Press Start or
Setup.
Set TX Level
Default=12 dBm
FCC requires that the transmission level be less than -9 dBm. From -
9 dBm to -15 dBm is acceptable. You can set the transmission level
between 0 and -15 dBm in 1 dBm steps using the operator panel
keypad. Accuracy is +0/-3 dBm.
1. Press Setup.
2. Press Menu until 'Set TX Level' displays.
3. Enter a number from 1 through 15 on the keypad.
Set RX Level
Default=-43 dBm
Reception level may be too low due to cable losses. If set to -43
dBm, reception sensitivity is between 0 and -43 dBm.
1. Press Setup.
2. Press Menu until 'Set RX Level' displays.
3. Enter a number from 40 through 50 on the keypad.
Pause Time
Default=3 seconds
This sets the length of the pause time from 1 through 9 seconds.
1. Press Setup.
2. Press Menu until 'Pause Time' displays.
3. Enter a number from 1 through 9 on the keypad.
Diagnostic Aids
3-11