Xycom XVME-956 Series Manual page 48

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JUMPER
W11
W12
W13
W14
W15
W16
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W17
W18
W19
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Table 3-12. COMB Serial Port Jumper Functions
FUNCTION
DSR source selection
CTS source selection
DCD source selection
DCD source selection
RS-485 RXD/TXD
termination
RS-485 RXD
termination
RS-485 AUXIN
termination
J2 pin 3
J2 pin 5
OPTION
2/3 DSR from RS-232C input
1/2 Forces DSR active
2/3 CTS from RS-232C/RS-485 input
1/2 Forces CTS active
2/3 RI from RS-232C input
1/2 Forces RI active
2/3 DCD from RS-232C input
1/2 Forces DCD active
short Terminated (120 ohms)
open Unterminated
short Terminated (120 ohms)
open Unterminated
short Terminated (120 ohms)
open Unterminated
short Grounds COM2 pin 3
open J2 pin 3 carries RS-232C TXD
short Grounds COM2 pin 5
open J2 pin 5 carries RS-485 A U X I N +
956 Manual
August 1994
EFFECT
3-9