Specifications

3-87
Memory Switch D:0 - Modem
Switch
Initial
Setting
Adjust Usage/Comments
7 0 Number of HDLC end flags Defines the number of HDLC end flags.
Switch 7 6 5 4
0 0 0 0 1
6 0 0 0 0 1 2
0 0 1 0 3 Initial setting
0 0 1 1 4
0 1 0 0 5
0 1 0 1 6
5 1 0 1 1 0 7
0 1 1 1 8
1 0 0 0 9
1 0 0 1 10
1 0 1 0 11
4 0 1 0 1 1 12
1 1 0 0 13
1 1 0 1 14
1 1 1 0 15
1 1 1 1 16
3 0 Factory use only
2 1 Group delay compensation
0: No
1: Yes
As if two exchangers are selected to communicate
each other, compensate the group delay.
1 0 Digital cable equalizer
0: Free
1: Hold
When set to “1”, become efficient for the line short
break, but become weak for the line noise. It’s
available only for communication at 14,400 or
12,000 bit/s.
0 1 Carrier detection level
0: -43/48 dB
1: -47/52 dB
Setting this switch to “1” increases the sensitivity.
Memory Switch D:1 - Modem
Switch
Initial
Setting
Adjust Usage/Comments
7 1 EYE-Q check level at 0 0 1 1
6 0 7200 bps
Strict-- - - - - - - - - - - -Lenient
0 1 0 1
5 1 EYE-Q check level at 0 0 1 1
4 0 9600 bps
Strict - - - - - - - - - - - -Lenient
0 1 0 1
3 1 EYE-Q check level at 0 0 1 1
2 0 12000 bps
Strict - - - - - - - - - - - -Lenient
0 1 0 1
1 1 EYE-Q check level at 0 0 1 1
0 0 14400 bps
Strict - - - - - - - - - - - -Lenient
0 1 0 1