The two pri mary se rial ports, COM1 and COM2 are con fig ur able for RS- 422, RS- 485 or J1708,
with the ad di tion of op tional driver ICs. The con figu ra tion op tions for each of the sup ported modes are
shown on the fol low ing pages. Connection to COM1 and COM2 is made through the Multi-I/O
connector at J27. An adapter cable (P/N CBL-247-1) is available from WinSystems’ to adapt to
standard DB9 connectors.
COM1 - RS- 232
COM2 - RS- 232
COM3/COM4 - RS- 232
COM3 and COM4 are RS- 232 only and are ter mi nated at J25. An adapter ca ble is avail able from
WinSystems (P/N CBL-173-1), which adapts J25 to two stan dard DB9M con nec tors. The pin
defi ni tions for J25 are shown here :
030530
EBC-LP OPERATIONS MANUAL
Page 2-7
WinSystems
- "The Embedded Authority"
3 2 1
o o o
1 2 3
o o o
U24 - In stalled
U25 - Not In stalled
U26 - Not In stalled
1
o o
6
2
o o
7
3
o o
8
4
o o
9
5
o
J11
J12
COM1 DB9
CD
RX Data
TX Data
DTR
GND
DSR
RTS
CTS
RI
3 2 1
o o o
1 2 3
o o o
U28 - In stalled
U29 - Not In stalled
U30 - Not In stalled
J13
J14
COM2 DB9
CD
RX Data
TX Data
DTR
GND
DSR
RTS
CTS
RI
1
o o
6
2
o o
7
3
o o
8
4
o o
9
5
o
1
o o
2
3
o o
4
5
o o
6
7
o o
8
9
o o
10
11
o o
12
13
o o
14
15
o o
16
17
o o
18
19
o o
20
COM3 DCD
COM3 RX
COM3 TX
COM3 DTR
GND
COM4 DCD
COM4 RX
COM4 TX
COM4 DTR
GND
COM3 DSR
COM3 RTS
COM3 CTR
COM3 RI
N/C
COM4 DSR
COM4 RTS
COM4 CTS
COM4 RI
N/C
J25
Summary of Contents for EBC-LP
Page 68: ...APPENDIX C Mechanical Drawing...
Page 69: ......
Page 70: ......
Page 71: ...APPENDIX D WS16C48 I O Routines and Sample Program Listings...
