Ricoh IM C300 Service Manual page 1564

Bit Switches – 4
(V.8/V.17 rx mode:
External)
0: Disabled
1: Enabled
5 Not used
6 Parameter selection
for dial tone
detection
0: Normal parameter
1: Specific parameter
7 Not used
G3 Switch 08 - Not used (do not change the settings)
G3 Switch 09 - Not used (do not change the settings)
G3 Switch 0A (SP No. 1-105-011)
No Function
0- Maximum allowable
1 carrier drop during image
data reception
Bit 1 Bit 0
0 0
0 1
1 0
1 1
2 Select cancellation of
high-speed RX if carrier
signal lost while receiving
0: Off
1: On
3 Not used
4 Maximum allowable
frame interval during
image data reception.
0: 5s 1: 13s
5 Not used
SM
Do not change the settings.
0: This uses the fixed table in the ROM for dial tone detection.
1: This uses the specific parameter adjusted with SRAM (69ECBEH -
69ECDEH). Select this if the dial tone cannot be detected when the
"Normal parameter: 0" is selected.
Do not change the settings.
Comments
These bits set the acceptable modem carrier drop time.
Try a longer setting if error code 0-22 is frequent.
Value
(ms)
200
400
800
Not used
This switch setting determines if high-speed receiving ends if the
carrier signal is lost when receiving during non-ECM mode
Do not change the settings
This bit set the maximum interval between EOL (end-of-line) signals
and the maximum interval between ECM frames from the other
end.
Try using a longer setting if error code 0-21 is frequent.
Do not change the settings.
89 D0CK