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118 XVR16*4th Generation Intel® Core™ i7 Based Rugged VME Single Board Computer
Publication No.
500-9300007876-000
Rev. C.0
A.1.2 Serial Interfaces COM1 (P2100) and COM2 (P2200,
P2201)
Figure A-3 Serial Interfaces COM1 and COM2
COM1 and COM2 ports are accessible via the transition module. COM1 is via a
10-pin har-Link
®
connector. Use adapter cable YLB-CR12-01 for the interface to
the 9-pin SUB-D connector.
COM2 is either at 10 pole headers or 9-pin SUB-D connectors. The SUB-D for
COM2 is available only if a hard-disk is not mounted at the transition module.
The ports are software selectable for RS232 or RS422/485 operation. The RS485
output drivers can be enabled or disabled with the DTR signal. An active DTR
means the drivers are always enabled. When using the RS422 setting, the output
drivers are always enabled and the DTR signal is not used.
NOTE
2100 is har-Link, P2200 is pin header.
* +5 V is fused with 2 A, however, for normal operation do not exceed 1 A at this
pin.
Table A-3 VTM26 COM1 (P2100)
P2100 har-Link
Name RS232
Name RS422/485
1
DCD
TXD-
2
DSR
TXD+
3
RXD
RTS-
4
RTS
RTS+
5
TXD
CTS+
6
CTS
CTS-
7
DTR
RXD+
8
RI
RXD-
9
GND
10
+5 V*
VTM26
VTM26