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Table 277
QSDI card DTE/DCE mode switch settings
Mode
DTE (Terminal)
DCE (Modem)
Mode
DTE (Terminal)
DCE (Modem)
Mode
DTE (Terminal)
DCE (Modem)
Mode
DTE (Terminal)
DCE (Modem)
QPC841 Quad Serial Data Interface card
DTE/DCE mode switch settings
Table 277 shows the DTE/DCE mode selection switches for the four serial
ports.
Port 1 – SW8
1
2
3
on
on
on
on
off
off
off
off
Port 2 – SW6
1
2
3
on
on
on
on
off
off
off
off
Port 3 – SW4
1
2
3
on
on
on
on
off
off
off
off
Port 4 – SW2
1
2
3
on
on
on
on
off
off
off
off
Test switch setting
Switch SW16 is only used for factory testing; all of its switches must be set
to OFF for proper operation.
4
5
6
1
on
on
off
off
off
on
4
5
6
1
on
on
off
off
off
on
4
5
6
1
on
on
off
off
off
on
4
5
6
1
on
on
off
off
off
on
Circuit Card
Page 879 of 906
Port1 – SW9
2
3
4
off
off
off
off
on
on
on
on
Port 2 – SW7
2
3
4
off
off
off
off
on
on
on
on
Port 3 – SW5
2
3
4
off
off
off
off
on
on
on
on
Port 4 – SW3
2
3
4
off
off
off
off
on
on
on
on
Description and Installation
5
6
off
on
5
6
off
on
5
6
off
on
5
6
off
on
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