Specifications

3-88
Memory Switch D:2 - Modem
Switch
Initial
Setting
Adjust Usage/Comments
7 0 EYE-Q slice level
0: Disable
1: Enable
Setting this bit to “1” enables memory switch D:2,
bits 0-3 and memory switch D:1, bits 0-7 and
enables EYE-Q check adjustment.
6 1 Check EYE-Q
0: No
1: Yes
Set at 0: Line condition status (EYE-Q) is not
checked after checking TCF.
Set at 1: Line condition status (EYE-Q) is checked
after checking TCF.
5 0 Factory use only
4 0 Factory use only
3 1 EYE-Q check level at 0 0 1 1
2 0 2400 bps
Strict - - - - - - - - - - - -Lenient
0 1 0 1
1 1 EYE-Q check level at 0 0 1 1
0 0 4800 bps
Strict - - - - - - - - - - - -Lenient
0 1 0 1
Memory Switch D:3 - Modem
Switch
Initial
Setting
Adjust Usage/Comments
7 0 Factory use only
6 0 Factory use only
5 0 Factory use only
4 0 Factory use only
3 0 Factory use only
2 0 Factory use only
1 0 Delete receive echo of CFR
at the receiver side
0: No
1: Yes
Modem will be opened only in high-speed mode.
Sets this switch to “1” to resolve the problem
caused of the echo of CFR.
0 0 Expand FSK receive time
after detecting flag
0: 3.3 seconds
1: 10 seconds
Setting this switch to “1” extend HDLC frame
receive timer in FSK from 3.3 seconds to 10
seconds after detecting pre-amble.
Memory Switch D:4 ∼ D:9 --- Factory use only